The Flooring Expert

Input section
[7 channels] High-precision temperature sensor, configurable for outdoor temperature;
[4 channels] 4-20mA signal temperature, humidity, CO2, NH3 sensor each 1 channel;
[3 channels] Dry contact input, 1 external alarm input, 2 reserved;

Output section
[3 channels] 0-10V analog signal, can be configured with variable frequency fan, pressure regulating fan, small window, etc.;
[15 channels] Relay, can be configured with constant speed fan, wet curtain water pump, heater, timer, wind window, curtain, alarm, etc.;
[1 channel] Relay alarm signal;
[1 channel] 485 communication interface, can be configured with the Internet of Things;