Reed R9450 Carbon Monoxide Meter With Temp/Humidity, Desktop
A desktop/wall-mount monitor that simultaneously displays carbon monoxide (0-999 ppm), relative humidity (10-90% RH), temperature (0-50C), and the tim..
Reed R9450-Nist Carbon Monoxide Meter With Temp/Humidity, Desktop W/Nist Cert
Desktop/wall-mount carbon monoxide monitor that simultaneously displays CO concentration, ambient temperature, relative humidity, and the time and dat..