... and the probe end. Because of its features of non contact measurement, long-term high working reliability, high sensitivity, ... , generators, blowers, compressors, gear boxes and other equipments in the industries of electric power, petrochemical, metallurgical and so ... kHz, it is -100 degree.Output characteristics:1. a negative voltage output,Power supply: -18Vdc~ -24VdcPower consumption ≤ 12mA ( ...