The WISUALARM DHI-HY-HT10A-R8 is an Class A1 heat detector that operates wirelessly and is designed for installation on indoor ceilings.

• Thermistor-based heat detection with an intelligent activation algorithm.
• Alarm activation range from +54°C to +65°C.
• Wireless interconnection for up to 24 devices at 868 MHz, with a range of up to 1000 m in open areas.
• Built-in sealed 3V CR123A lithium battery with an approximate lifespan of 10 years.
• Low-battery warning.
• Can be tested and silenced using the central button or an optional IR remote control.
• Alarm sound level of approximately 85 dB(A) at 3 m.
• Standby current of approximately 15 μA and alarm current of up to 60 mA.
• Operating temperature range from -10°C to +55°C.
• Designed to reduce false alarms in smoky, dusty, or humid areas (kitchens, attics, garages, boiler rooms).
• Some features (app connection) require an interconnected gateway.
• Typical dimensions: approximately 93.8 x 37.8 mm.
• Product weight: approximately 180 g.

Meets Class A1 requirements for heat detectors and is sold as part of the Dahua/WISUALARM Wisualarm alarm family.