Brand：
$257.00
SE
GUOYUGRA GY/VGD-200-CH2O-G (0-10ppm) Formaldehyde Detector
CH2O0-10Pm (optional 50ppm, 100ppm, 200ppm)diffusion
Intelligent Sensors and MCU chip design, support 4-20mA, RS485, switch and other signal output, equipped with high definition LCD display, support Chinese and English Operating interface.
If you don't know how to choose "Gas detector", please consult customer service.