$183.00
SE
GUOYUGRA GY/VGD-200-CH4-G (0-100% LEL) Methane Detector
CH40-100%LEL、5%Voldiffusion
General catalytic combustion Sensors, catalytic combustion detection principle and MCU low power chip, support a variety of signal output (4-20mA, RS485, wireless transmission) and remote data monitoring.

$220.00
SE
GUOYUGRA GY/VGD-200-N2-G (0-100% .Vol) nitrogen Detector
N2 0-100%.Voldiffusion
Conventional, Sensors life of 2 years, measuring air or nitrogen purity or leakage, low power MCU chip and intelligent Sensors, with flameproof structure and high definition LCD display, support a variety of signal output.

If you don't know how to choose "Gas detector", please consult customer service.