Carbon monoxide alarms ??-2?

Carbon monoxide alarms ??-2?: are designed for continuous, automatic control of carbon monoxide (CO) content.
Type of alarms: stationary, continuous, single-channel, with diffusion supply of the controlled medium, with two fixed alarm thresholds
The principle of operation of the detectors is based on conversion of gas concentration into voltage. The obtained voltage value is compared with the values set during calibration, corresponding to the threshold levels of gas concentration. If the measured gas concentration equals or exceeds any threshold level, sound, light or control signals are generated in accordance with the logic of the detector operation.
The detectors are available in three versions: ??-2?; ??-2ER; ??-2??.