USB to WiFi Module accessory.
Includes accessories needed to perform calibrations on Honeywell Sensepoint XCD RFD gas sensors (does not include calibration gas).
XCD replacement cells class I, division 2 .
Includes accessories needed to perform calibrations on the Searchpoint Optima plus gas detector (does not include calibration gas).
Carbon monoxide 0-500ppm (100 to 1000ppm).