Product Specification: 
Product Name: H2 Air Quality Detector
Detection Objects: Formaldehyde, TVOC
Weight of Main Machine: 220g
Overall Dimension: 168*65*32 mm

2.1 Operating Environment:
Temperature Range: 0-50℃
Humidity Range: 0-90%RH
Atmospheric Pressure: 1 atm

2.2 Measurement Index and Range:
2.2.1 Formaldehyde Measurement Technical Index:
Measurement Range: 0-2mg/m³
Resolution: 0.001mg/m3

2.2.2 TVOC Measurement Technical Index:
Measurement Range: 0-2mg/m³
Resolution: 0.001mg/m3

3.2 Operation instructions

Turn On/Off the detector
Turn on the detect and then it will enter self-examination mode.

Back -light On/Off Button
Press the back-light button then back-light will be on.
Re-press it, back-light will be off. They form a cycle.

Audible alarm
If the battery level is low or the concentration of formaldehyde is over the set warning value (0.15mg/m3), the detector will send out the audible alarm. If the user intends to turn off the alarm, please press the audible alarm button.

3.3 Mode Setting
Press the mode-setting button and enter the setting mode. Set the upper-limit value for warning. Under the setting mode, the exact upper limit of warning can be set up. The setting button can switch the detailed upper-limit value and the corresponding settable position will twinkle. When it twinkles the upper and lower buttons can increase and decrease the value. After pressing rge “OK” button, the user finishes setting and switches to the normal mode.

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