... With power-off memory 2.Ultra high temperature alarm function 3.Fault self 4.Suitable ... has the advantages of simple operation, high precision of temperature control, with power-off memory, fault self-test ... , ultra-high temperature alarm function, is applied to the heating equipment ... 50.0°C RH ≤90% 5,input signal: A temperature sensor, the standard length of 1.5 meters ...