Specifications:
Condition: 100% Brand New
Usage: Home Use HCHO and TVOC Air Quality Detecting
Shell Material: ABS
Main Color: White
Detecting Range: 0.000-1.999mg/m3
Measurement Accuracy:0.001
Storage Temperature: -20~70
Working Voltage: 2.4-3.0V
Power: AA Battery x 2 (not included)
Concentration Unit: mg/m3
Collection Method: Diffusion Type
Detecting Temperature: -20~70
Size: Approx. 6.3 * 14.2cm / 2.5 * 5.6in
Thickness: Approx. 2cm / 0.8in
Package Weight: 155g

Usage:
1. There will be about 200 seconds warm-up after turning on the device, then press the right button and hold for 5 seconds, release after hearing "Beep......", then start air test. When concentration is no higher than 0.01, the air quality is good. When concentration is over 0.1mg/m3 and TVOC is over 0.6mg/m3, the is overproof, alarm indicating light will turn from green to red, that suggests to open the door for good ventilation. When concentration is more than 0.3mg/m3, the is overprood seriously, buzzer will give an alarm. We suggest to open the window for good ventilation at once, and pay more attention to test constantly.
2. Press on/off switch for 3 seconds for turn on/off the device.
3. We suggest to turn off the device immediately after use to save power.

Package List:
1 * Detector (exclude battery).