Formaldehyde Detection Alarm Product Description TN-10 / CH2O formaldehyde gas alarm detector is a single gas can be flexibly configured or more gas detection alarm, it can be equipped with an oxygen sensor, combustible gas sensor, and toxic gas sensor or any Option four kinds of gas sensors or any kind of gas sensor menu. TN-10 has a very large clear LCD display, backlight, sound and light alarm, ensure that in a very hostile work environment can also detect dangerous gases and promptly alert the operator prevention. Features? Small, lightweight, sturdy? Import formaldehyde sensor? Sound, light, vibration alarm? Large-screen digital, character display, instantaneous, peak, minimum display? On display, batteries, sensors, sound and light alarm boot or need ? Self-Test Safety Tips: regular flashing lights, voice prompts Superior audio sound alarm maintenance costs low technical parameters Detection of gas:?? air formaldehyde (CH2O) Range: 0-9.99ppm basic error: <± 5% (FS ) Minimum reading: 0.01ppm Response time: ≤50 seconds Sensor life: 24 months Sensor Type: Electrochemical Battery: 3.6V Li-ion rechargeable battery Battery working time: about 200 hours of continuous work around Display: large-screen LCD Alarm: Sound light, vibration alarm Direct reading: instantaneous, peak, battery voltage, the minimum proof mark: Ex ibdIICT3 Protection grade: IP45 Working temperature: -10∽45 ℃ Operating Humidity: 5-90% RH Dimensions: 108mm × 61mm × 40mm Weight: 100g