3X DM1306D Digital Decibel Sound Meter Smart Wall Mounted Noise Detector 30-130DB Temperature and Humidity Monitor,3 x Decibel Meter,Black&White

Display method:LED Screen
Atmospheric pressure: 86Kpa - 106Kpa
Sampling time: 1.5 seconds
Detection temperature: -10°C to 50°C;
Relative humidity: 20% - 85%

Storage temperature: -10°C to 60°C;
Power source: Lithium battery with 2000 mAh capacity;
5V DC power charging
Product weight: 1050g
Measuring range:30~130dBA
Detection method for Noise : Electret Condenser microphone
Processor:ARM ,High-speed complex calculations
Colour:black+white
Material: ABS
Size:270 x 90 x 35mm

Package Contents:
3 x Decibel Meter

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.