USB to RS232 (DB9/M) adapter cable.
Available as O2, CO, H2S, H2, NO2 & flammable catalytic bead.
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).
4-gas calibration mix (CH4, O2, H2S, CO) .
