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Ajax Systems DoorProtect Wireless Contact Sensor RF 20x90mm
Door & Window Sensors

Ajax Systems DoorProtect Wireless Contact Sensor RF 20x90mm

Key features:

  • Connectivity: RF (Jeweller)
  • Dimensions: 90x20mm
  • Compatible battery: CR123A
  • Protection certification: IP50
See full description

  • Connection Method

    Wireless

    Connects to the installation system via a wireless communication protocol. Powered by battery.

  • Connectivity

    The wireless communication protocol supported by the contact for connection with the alarm system or other devices.

  • Battery

    Powered wirelessly by battery.

  • Compatible Battery

    The type of compatible battery that powers the sensor
  • Dimensions 20x90mm

  • Tamper

    Refers to protection against attempts to tamper with the device. For example, if someone tries to open the sensor's casing or remove it from its position, the sensor will send an alarm signal.
  • See all

User Manual

Product report

Description

Description

DoorProtect Jeweller

The DoorProtect Jeweller is a wireless opening detector designed to protect doors, windows, and skylights. Its high-quality reed switch is manufactured in Britain and withstands over 2 million openings. The system includes two magnets of different sizes for flexible installation, even on narrow frames, while the pre-installed battery offers up to 7 years of operation without the need for replacement.

Reed Switch

The reed switch is the main functional component of the device, housed in a durable plastic capsule that protects against shocks and drops, ensuring long-term reliability. The device can accurately detect breaches, while the protection against "friction" of the reed switch prevents false alarms.

Additional Connectivity Options

The DoorProtect Jeweller offers additional connectivity options with third-party NC-type detectors, such as opening, vibration, or motion detectors, enhancing the overall security of the system. The Chime function turns the detector into an electronic doorbell, with sound notifications of different patterns for each entrance, which can be customized through the Ajax app.

Jeweller Technology by Ajax

The device uses Ajax's innovative Jeweller wireless technology, which provides secure two-way communication with encryption and device authentication, protection against interference, and adjustable power capability. The system supports a range of up to 1,200 meters in open space and can be extended with ReX repeaters for stable operation even in large or complex installations.

Simple & Quick Installation

Installation is simple and quick using the SmartBracket and the Ajax app, without the need to disassemble the device. The device continuously reports its status to the Ajax hub and the app, providing real-time notifications for any error or tampering attempt, ensuring complete supervision and reliability.

Features

  • Wireless opening detector
  • Reed switch in a plastic capsule
  • Two magnets of different sizes
  • Terminals for third-party NC detectors
  • Chime function with sound signals
  • Tamper protection against disassembly
  • Pre-installed CR123A battery, lasting up to 7 years
  • Jeweller communication with encryption and authentication
  • Range up to 1,200 m in open space
  • Automatic power adjustment
  • Ability to connect up to 5 ReX repeaters
  • Detector dimensions 90 × 20 × 20 mm, weight 29 g
  • Battery life 1,600 mAh, low voltage 2.5 V
  • Operating temperature −10 °C to +40 °C
  • Humidity up to 75%
  • Protection class IP50
  • Colors black or white
  • Package includes: detector, SmartBracket, battery, large and small magnet, terminal, installation kit, quick start guide

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Product Guides

User Manual

Specifications

Connection Method
Wireless

Connection Method

Wireless

Connects to the installation system via a wireless communication protocol. Powered by battery.
Battery
Yes

Battery

Powered wirelessly by battery.
Battery Type
CR123A

Battery Type

The type of compatible battery that powers the sensor
Dimensions (Spec Summary)
20x90mm
Μεταλλική
No

Μεταλλική

Μεταλλική επαφή βαρέως τύπου κατάλληλη για εφαρμογή σε σιδερένιες πόρτες, ρολά, γκαραζόπορτες κλπ.
Tamper
Yes

Tamper

Refers to protection against attempts to tamper with the device. For example, if someone tries to open the sensor's casing or remove it from its position, the sensor will send an alarm signal.
Pieces
1 pcs

Installation

Screw-in
No

Screw-in

Can be installed with screws.
Adhesive
No

Adhesive

Can be installed with adhesive tape.
Recessed
No
Nailed
No

Smart Attributes

Connectivity
RF

Connectivity

The wireless communication protocol supported by the contact for connection with the alarm system or other devices.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (69)

Reviews

4.9
69
4.9
Review this product
  1. 66
  2. 2
  3. 1
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • TerraInc
    3
    0 out of 1 members found this review helpful
    TerraInc

    Verified purchase

    This review is about the colour: White

    The second contact should be able to be programmed for night operation separately from the main one. It's excessive to have to buy the more expensive model for this job.

    Translated from Greek ·
    Did you find this review helpful?
  • GV SAT
    5
    1 out of 3 members found this review helpful
    GV SAT

    The contact is the best available in wireless and with a battery that lasts 3 to 5 years. It is the best available in a wireless system, as a certified installer I recommend it. I also undertake the installation and configuration of the system.

    Translated from Greek ·
    Did you find this review helpful?
  • GV SAT
    5
    1 out of 3 members found this review helpful
    GV SAT
    This review is about the colour: White

    Reliable and the battery in the contact lasts about 3 to 5 years. It is the best available in wireless and system, as a certified installer I recommend it. I also undertake the installation and adjustment of the system.

    Translated from Greek ·
    Did you find this review helpful?
  • vandimos ed
    5
    2 out of 2 members found this review helpful
    vandimos ed

    Verified purchase

    This review is about the colour: White

    Just like the rest of the products of this company, this one connects directly and easily. Reliable and presentable

    Translated from Greek ·
    Did you find this review helpful?
  • kalaitsa
    5
    8 out of 10 members found this review helpful
    kalaitsa

    Verified purchase

    The installation is very easy, as well as the alignment thanks to the removable adhesive. The base could hold the sensor better because it can turn 2-3 degrees left or right, affecting the aesthetics of the image, although it is not important, I just mention it. Its reliability seems excellent. Ideal for doors. For windows and balcony doors, I recommend spending a few extra euros on the Ajax DoorProtect Plus Magnetic Door and Window Detector with Tilt and Vibration Sensor.

    Translated from Greek ·
    Did you find this review helpful?
  • oik72
    5
    1 out of 1 members found this review helpful
    oik72

    Verified purchase

    This review is about the colour: White

    Complete the rest of the similar sensors and complete the system. Very good and reliable

    Translated from Greek ·
    Did you find this review helpful?
  • georgalis22
    5
    8 out of 8 members found this review helpful
    georgalis22
    This review is about the colour: White

    Use the wired trap kit that includes.
    And if you can, install recessed traps for added convenience.
    Always screw the transmitter (trap) onto the wall, do not rely on double-sided tape.
    That's why it's a perfect product.

    Translated from Greek ·
    Did you find this review helpful?
  • dimitris.paraskevopoulos
    5
    1 out of 1 members found this review helpful
    dimitris.paraskevopoulos

    Very easy to install them in the already very easy DIY (do it yourself) installed alarm system, which sends notifications via the Internet and SMS to the mobile phone within a fraction of a second after activation. To send SMS, the placement of a SIM card is required in the central unit. Very easy customization of the operation of the individual sections of the alarm through the application from the mobile phone.

    Translated from Greek ·
    Did you find this review helpful?
  • Dionysis_Somponis
    4
    4 out of 7 members found this review helpful
    Dionysis_Somponis
    This review is about the colour: White

    Very good for its job. The only disadvantage it has, which causes it to lose one star, is that the large magnet only works up to a distance of 2cm, but it needs to be at a distance of 1cm to function properly.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Kostas_Pachos

    Verified purchase

    This review is about the colour: White

    easy installation and use

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Anastasia_Papastavrou7284

    Verified purchase

    +***+++++++++

    Did you find this review helpful?
  • 5
    mcmathiou

    Verified purchase

    very easy to install

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    A_N

    Verified purchase

    This review is about the colour: White

    all their products work very well without errors

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Nick_Papageorgiou4380

    Verified purchase

    Ajax without much talk. You can see the sensor's status in the app at any time.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    gandrik

    Verified purchase

    Fantastic.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    Nick_Papadopoulos6025

    Verified purchase

    Take Ajax with closed eyes.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    2 out of 2 members found this review helpful
    mix_pel

    Verified purchase

    This review is about the colour: White

    It worked correctly when needed. It doesn't make false alarms.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    avlonitis96

    Verified purchase

    The best.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Sofia_Spyropoulou7280

    Verified purchase

    Easy to install.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Nasos_Apostolopoulos20

    Verified purchase

    Top product

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    apostolosdel

    Verified purchase

    This review is about the colour: White

    Screw on the balcony door, maybe it will need other screws similar to the ones it already has.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    mygdaliasd

    Verified purchase

    This review is about the colour: White

    It does what it promises without any problems

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    0 out of 1 members found this review helpful
    Harilao

    Verified purchase

    This review is about the colour: White

    Very good, beautiful, and high-quality product!!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    lampros0

    Verified purchase

  • 5
    spanoskostas

    Verified purchase

    This review is about the colour: White

  • 5
    Chrisxcx

    Verified purchase

    This review is about the colour: White

  • 5
    Fanis Karamplias

    Verified purchase

    This review is about the colour: White

  • 5
    Epameinondas_Remountakis

    Verified purchase

    This review is about the colour: White

  • 5
    Manos_Angelakis

    Verified purchase

    This review is about the colour: White

  • 5
    PakoV

    Verified purchase

  • TerraInc
    3
    TerraInc

    The second contact should be able to be programmed for night operation separately from the main one. It's excessive to have to buy the more expensive model for this job.

    Translated from Greek ·
    0
  • GV SAT
    5
    GV SAT

    The contact is the best available in wireless and with a battery that lasts 3 to 5 years. It is the best available in a wireless system, as a certified installer I recommend it. I also undertake the installation and configuration of the system.

    Translated from Greek ·
    1
  • GV SAT
    5
    GV SAT

    Reliable and the battery in the contact lasts about 3 to 5 years. It is the best available in wireless and system, as a certified installer I recommend it. I also undertake the installation and adjustment of the system.

    Translated from Greek ·
    1
  • vandimos ed
    5
    vandimos ed

    Just like the rest of the products of this company, this one connects directly and easily. Reliable and presentable

    Translated from Greek ·
    2
  • kalaitsa
    5
    kalaitsa

    The installation is very easy, as well as the alignment thanks to the removable adhesive. The base could hold the sensor better because it can turn 2-3 degrees left or right, affecting the aesthetics of the image, although it is not important, I just mention it. Its reliability seems excellent. Ideal for doors. For windows and balcony doors, I recommend spending a few extra euros on the Ajax DoorProtect Plus Magnetic Door and Window Detector with Tilt and Vibration Sensor.

    Translated from Greek ·
    8
  • See all

Description & Specifications

DoorProtect Jeweller

The DoorProtect Jeweller is a wireless opening detector designed to protect doors, windows, and skylights. Its high-quality reed switch is manufactured in Britain and withstands over 2 million openings. The system includes two magnets of different sizes for flexible installation, even on narrow frames, while the pre-installed battery offers up to 7 years of operation without the need for replacement.

Reed Switch

The reed switch is the main functional component of the device, housed in a durable plastic capsule that protects against shocks and drops, ensuring long-term reliability. The device can accurately detect breaches, while the protection against "friction" of the reed switch prevents false alarms.

Additional Connectivity Options

The DoorProtect Jeweller offers additional connectivity options with third-party NC-type detectors, such as opening, vibration, or motion detectors, enhancing the overall security of the system. The Chime function turns the detector into an electronic doorbell, with sound notifications of different patterns for each entrance, which can be customized through the Ajax app.

Jeweller Technology by Ajax

The device uses Ajax's innovative Jeweller wireless technology, which provides secure two-way communication with encryption and device authentication, protection against interference, and adjustable power capability. The system supports a range of up to 1,200 meters in open space and can be extended with ReX repeaters for stable operation even in large or complex installations.

Simple & Quick Installation

Installation is simple and quick using the SmartBracket and the Ajax app, without the need to disassemble the device. The device continuously reports its status to the Ajax hub and the app, providing real-time notifications for any error or tampering attempt, ensuring complete supervision and reliability.

Features

  • Wireless opening detector
  • Reed switch in a plastic capsule
  • Two magnets of different sizes
  • Terminals for third-party NC detectors
  • Chime function with sound signals
  • Tamper protection against disassembly
  • Pre-installed CR123A battery, lasting up to 7 years
  • Jeweller communication with encryption and authentication
  • Range up to 1,200 m in open space
  • Automatic power adjustment
  • Ability to connect up to 5 ReX repeaters
  • Detector dimensions 90 × 20 × 20 mm, weight 29 g
  • Battery life 1,600 mAh, low voltage 2.5 V
  • Operating temperature −10 °C to +40 °C
  • Humidity up to 75%
  • Protection class IP50
  • Colors black or white
  • Package includes: detector, SmartBracket, battery, large and small magnet, terminal, installation kit, quick start guide

Manufacturer

Manufacturer Details

Warnings & Safety Information

Product Guides

User Manual

Specifications

Connection Method
Wireless

Connection Method

Wireless

Connects to the installation system via a wireless communication protocol. Powered by battery.
Battery
Yes

Battery

Powered wirelessly by battery.
Battery Type
CR123A

Battery Type

The type of compatible battery that powers the sensor
Dimensions (Spec Summary)
20x90mm
Μεταλλική
No

Μεταλλική

Μεταλλική επαφή βαρέως τύπου κατάλληλη για εφαρμογή σε σιδερένιες πόρτες, ρολά, γκαραζόπορτες κλπ.
Tamper
Yes

Tamper

Refers to protection against attempts to tamper with the device. For example, if someone tries to open the sensor's casing or remove it from its position, the sensor will send an alarm signal.
Pieces
1 pcs

Installation

Screw-in
No

Screw-in

Can be installed with screws.
Adhesive
No

Adhesive

Can be installed with adhesive tape.
Recessed
No
Nailed
No

Smart Attributes

Connectivity
RF

Connectivity

The wireless communication protocol supported by the contact for connection with the alarm system or other devices.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (69)

4.9
69
4.9
Review this product
  1. 66
  2. 2
  3. 1
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • TerraInc
    3
    0 out of 1 members found this review helpful
    TerraInc

    Verified purchase

    This review is about the colour: White

    The second contact should be able to be programmed for night operation separately from the main one. It's excessive to have to buy the more expensive model for this job.

    Translated from Greek ·
    Did you find this review helpful?
  • GV SAT
    5
    1 out of 3 members found this review helpful
    GV SAT

    The contact is the best available in wireless and with a battery that lasts 3 to 5 years. It is the best available in a wireless system, as a certified installer I recommend it. I also undertake the installation and configuration of the system.

    Translated from Greek ·
    Did you find this review helpful?
  • GV SAT
    5
    1 out of 3 members found this review helpful
    GV SAT
    This review is about the colour: White

    Reliable and the battery in the contact lasts about 3 to 5 years. It is the best available in wireless and system, as a certified installer I recommend it. I also undertake the installation and adjustment of the system.

    Translated from Greek ·
    Did you find this review helpful?
  • vandimos ed
    5
    2 out of 2 members found this review helpful
    vandimos ed

    Verified purchase

    This review is about the colour: White

    Just like the rest of the products of this company, this one connects directly and easily. Reliable and presentable

    Translated from Greek ·
    Did you find this review helpful?
  • kalaitsa
    5
    8 out of 10 members found this review helpful
    kalaitsa

    Verified purchase

    The installation is very easy, as well as the alignment thanks to the removable adhesive. The base could hold the sensor better because it can turn 2-3 degrees left or right, affecting the aesthetics of the image, although it is not important, I just mention it. Its reliability seems excellent. Ideal for doors. For windows and balcony doors, I recommend spending a few extra euros on the Ajax DoorProtect Plus Magnetic Door and Window Detector with Tilt and Vibration Sensor.

    Translated from Greek ·
    Did you find this review helpful?
  • oik72
    5
    1 out of 1 members found this review helpful
    oik72

    Verified purchase

    This review is about the colour: White

    Complete the rest of the similar sensors and complete the system. Very good and reliable

    Translated from Greek ·
    Did you find this review helpful?
  • georgalis22
    5
    8 out of 8 members found this review helpful
    georgalis22
    This review is about the colour: White

    Use the wired trap kit that includes.
    And if you can, install recessed traps for added convenience.
    Always screw the transmitter (trap) onto the wall, do not rely on double-sided tape.
    That's why it's a perfect product.

    Translated from Greek ·
    Did you find this review helpful?
  • dimitris.paraskevopoulos
    5
    1 out of 1 members found this review helpful
    dimitris.paraskevopoulos

    Very easy to install them in the already very easy DIY (do it yourself) installed alarm system, which sends notifications via the Internet and SMS to the mobile phone within a fraction of a second after activation. To send SMS, the placement of a SIM card is required in the central unit. Very easy customization of the operation of the individual sections of the alarm through the application from the mobile phone.

    Translated from Greek ·
    Did you find this review helpful?
  • Dionysis_Somponis
    4
    4 out of 7 members found this review helpful
    Dionysis_Somponis
    This review is about the colour: White

    Very good for its job. The only disadvantage it has, which causes it to lose one star, is that the large magnet only works up to a distance of 2cm, but it needs to be at a distance of 1cm to function properly.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Kostas_Pachos

    Verified purchase

    This review is about the colour: White

    easy installation and use

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Anastasia_Papastavrou7284

    Verified purchase

    +***+++++++++

    Did you find this review helpful?
  • 5
    mcmathiou

    Verified purchase

    very easy to install

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    A_N

    Verified purchase

    This review is about the colour: White

    all their products work very well without errors

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Nick_Papageorgiou4380

    Verified purchase

    Ajax without much talk. You can see the sensor's status in the app at any time.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    gandrik

    Verified purchase

    Fantastic.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    Nick_Papadopoulos6025

    Verified purchase

    Take Ajax with closed eyes.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    2 out of 2 members found this review helpful
    mix_pel

    Verified purchase

    This review is about the colour: White

    It worked correctly when needed. It doesn't make false alarms.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    avlonitis96

    Verified purchase

    The best.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Sofia_Spyropoulou7280

    Verified purchase

    Easy to install.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Nasos_Apostolopoulos20

    Verified purchase

    Top product

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    apostolosdel

    Verified purchase

    This review is about the colour: White

    Screw on the balcony door, maybe it will need other screws similar to the ones it already has.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    mygdaliasd

    Verified purchase

    This review is about the colour: White

    It does what it promises without any problems

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    0 out of 1 members found this review helpful
    Harilao

    Verified purchase

    This review is about the colour: White

    Very good, beautiful, and high-quality product!!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    lampros0

    Verified purchase

  • 5
    spanoskostas

    Verified purchase

    This review is about the colour: White

  • 5
    Chrisxcx

    Verified purchase

    This review is about the colour: White

  • 5
    Fanis Karamplias

    Verified purchase

    This review is about the colour: White

  • 5
    Epameinondas_Remountakis

    Verified purchase

    This review is about the colour: White

  • 5
    Manos_Angelakis

    Verified purchase

    This review is about the colour: White

  • 5
    PakoV

    Verified purchase

  • TerraInc
    3
    TerraInc

    The second contact should be able to be programmed for night operation separately from the main one. It's excessive to have to buy the more expensive model for this job.

    Translated from Greek ·
    0
  • GV SAT
    5
    GV SAT

    The contact is the best available in wireless and with a battery that lasts 3 to 5 years. It is the best available in a wireless system, as a certified installer I recommend it. I also undertake the installation and configuration of the system.

    Translated from Greek ·
    1
  • GV SAT
    5
    GV SAT

    Reliable and the battery in the contact lasts about 3 to 5 years. It is the best available in wireless and system, as a certified installer I recommend it. I also undertake the installation and adjustment of the system.

    Translated from Greek ·
    1
  • vandimos ed
    5
    vandimos ed

    Just like the rest of the products of this company, this one connects directly and easily. Reliable and presentable

    Translated from Greek ·
    2
  • kalaitsa
    5
    kalaitsa

    The installation is very easy, as well as the alignment thanks to the removable adhesive. The base could hold the sensor better because it can turn 2-3 degrees left or right, affecting the aesthetics of the image, although it is not important, I just mention it. Its reliability seems excellent. Ideal for doors. For windows and balcony doors, I recommend spending a few extra euros on the Ajax DoorProtect Plus Magnetic Door and Window Detector with Tilt and Vibration Sensor.

    Translated from Greek ·
    8
  • See all
33,85 €
14,00 €   shipping cost