The main function:
1. Refrigeration control, heating control
2. Dehumidification control, humidification control
3. Condensation alarm, alarm output
4. Timing load output, load delay output

Product specifications:
1. Material: PC + ABS flame retardant
2. Power supply voltage: AC100-240V 50/60HZ
3. Input signal: one integrated temperature and humidity sensor (line length 2 meters)
4. Output load: R1 load 5A/250Vac, R2, R3 load 16A/250Vac, R4, R5 load 3A/250Vac (loads are all resistive)
5. Setting range: humidity 5%-95%, RH division value: 0.1%, temperature: minus 20-60 degrees Celsius, division value: 0.1 degrees Celsius
6. Measurement accuracy: temperature ±1%; humidity ±5%
7. Working environment: minus 20-45 degrees Celsius; 10-90RH without condensation
8. Protection level: IP65 (front panel)
9. Overall size: 7.8 x 3.45 x 7.1 cm
10. Opening size: 7.1 x 2.9 cm