Usage Tips: Application: Suitable for granaries, warehouses, computer rooms, farms, incubation rooms, textile industries, and other locations requiring heating, cooling, humidification, or dehumidification. Used in outdoor terminal boxes and power distribution boxes for automatic heating and dehumidification to prevent tracking caused by operational errors. Ideal for high-voltage power distribution units and high-pressure switch mechanism boxes indoors—provides automatic heating in low-temperature environments to prevent switch failure due to cold. Features: Displays temperature and humidity. Supports multiple models for controlling temperature and humidity output changes, with RS485 communication capability. High-performance, high-precision, and durable design. Temperature sensor operates reliably across diverse environments. Model: MH0302 Power Supply: 85–250 VAC, 50–60 Hz Power Consumption: 2 W Resolution: 0.1 Control Output: 3 A, 250 VAC (resistive load) Display: LED Temperature Set Range: –40°C to 120°C Humidity Set Range: 0–99.9% RH Hysteresis Setting Range: Temperature 0–9°C; Humidity 1–9% RH Accuracy: Temperature ±1°C; Humidity ±5% RH Operating Temperature: –10°C to 50°C Operating Humidity: 45–85% RH Mechanical Life: ≥3,000,000 cycles Output Mode Settings: 001 = Heating + Humidification 002 = Heating + Dehumidification 003 = Cooling + Humidification 004 = Cooling + Dehumidification Color: Black Material: ABS + electronic components Dimensions: 8.0 × 8.0 × 10.0 cm Package Contents: 1 × Temperature & Humidity Controller (MH0302) 1 × Combined Temperature & Humidity Sensor (3-meter cable) 1 × User Manual Note: Colors may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.