• Measurement Range: 30-130dBA, 30-130dBC (optional)
• Measurement Accuracy: ±1.5 dB (94dB@1KHz)
• Color LCD screen with backlight
• Frequency range 30Hz-8kHz
• Resolution 0.1dB
• Measurement time 125ms - 1sec.
• Frequency weighting A weighting, C weighting (optional).
• Microphone cover for better sound quality.
• Measurement of maximum value, minimum value
• Button to hold the last reading (HOLD).
• Recommended operating temperature: 0~40°C
• Recommended operating humidity: <80%RH
• Recommended operating altitude: <2000m
• Recommended storage temperature: -10~50°C
• Automatic shutdown.

3 pcs. 1.5V AAA alkaline batteries