The temperature sensor is used to detect the outside temperature in real time. When the temperature exceeds or falls below a threshold set by the user, an alarm is issued to the outside world.
The temperature alarm can be connected to many alarm devices, such as directly using sound devices, prompt lights, or connecting to the network to send alarm information or real-time temperature information to users.
The temperature and humidity controller is mainly composed of a sensor, a controller, and a heater (or a fan, etc.). Its working principle is as follows. The sensor detects the temperature and humidity information in the box and is analyzed and processed by the controller. When the value is set in advance, the controller gives a relay contact signal, the heater (or fan) is turned on to start working, and the box is dehumidified or heated. After a period of time, the box temperature or humidity is far from the set value. The heater (fan) is out of work. In addition to basic functions, different models also have auxiliary functions such as disconnection alarm output, communication, and forced heating.
Guangdong Puda Electrical Appliance Co., Ltd. , https://www.elecapoka.com