Formaldehyde meters detects the presence of HCHO and measures concentrations between 1-50ppm
 
Features
Digital LCD display
Auto zero
Memory for 10 complete data sets
Record mode
LED light audible alarm
High accuracy, quick response
pocket size and easy to use
fast sampling
Max hold
data hold
auto power off
above 50ppm. The beeper sounds continuously

Specifications
Operating temperature  0 to 50℃
Storage temperature  0 to 20℃
Operating humidity  0~90% relative humidity
Measurement range  0-50ppm
Measurement resolution  1ppm
Accuracy  3% or ±2ppm
Warm up period  Less than 2seconds
Battery  6v,4*1.5AAA battery
Auto power off  After 15 minutes of inacticity
Sensor type  Stabilized electrochemical gas-specific
Typical sensor life  3 years
Size  160*55*40mm
Weight  156g
Accessories  1.5AAA*4 battery, manual and blister card