Temperature controller CH402 PID controller and TS-P6100 temperature sensor build in to control the temperature of airflow units in the central air-conditioning Power supply: 220V; 50/60Hz Control accuracy: 1C Setpoint: -199.9 200.0 C Display accuracy: 0.1C Output control signal: floating or 0 10V,4 20mA Control box is dustproof and waterproof Easy to use, flexible parameter setting Easy installation