KR-TD32 is a temperature and humidity sensor to detect whether current environment temperature and humidity are normal, when the value exceeds the set one, detector will be alarming immediately and sending radio signals to the appropriate host device to notify the user make the appropriate treatment. KR-TD32 mainly uses in the environment strictly requests for temperature and humidity to protect the personal and property safety. Detector can connect with external temperature sensor. Features Easy to operate and use Range of temperature and humidity is adjustable Detector can display the appropriate date and time, date and time can be set to what you want Temperature measure unit can be set in Fahrenheit (F) and Celsius (C) Always detect around environment temperature and humidity Send alarm signals to the appropriate host when alarms Can connect with external temperature sensors, temperature probes can detect the temperature out of the environment. Technical Parameters Power Supply: 3 AAA batteries Standby Current: <80uA Alarm Current: <100mA Power off Current: <15uA Wireless Radio Frequency: 433MHZ Working Temperature: -20C -50C Working Humidity: 20% -95%