This humidity alarm detector is an automatic humidity detector designed for civil application, which adopt 9V battery as the power supply to increase the safety coefficient. It uses the conductivity of water of the alarm source. It consists ot gold-plated probe, signal process circuit and Motorolla special IC. When the humidity reaches designated threshold value, the metal probe transfers the detected signal to internal circuit, which generates the micro current. The micro current will generate the alarm signal after it has been amplified; Therefore the purpose of alarm is achieved.

Power source: DC 9V battery
temperature:1~60 degree
quiescent current : 5~10uA
response time:less than 7 seconds
rated current:: less than 16mA
alarm decibel: more than 85dB/3M