B series temperature and humidity controller with completed FUZZY algorithm control fan or heater to maintain sensible & latent capacity follows temperature curve by automatically. And have an independent humidity input can monitor the environment RH and output control signal. User can adjust temperature value very easily to use dial and a LED indicator to show the relay. FEATURES Electromechanical thermostat, max with 2 control port for fan & heater Dial pad setting temperature / humidity threshold Sensor length max 10meter (default 3meter) 48*48mm panel mounting size, optional Din-rail mounting rack