Application: Suitable for granaries, warehouses, computer rooms, farms, incubation rooms, textile industries, and other locations requiring heating, cooling, humidification, or dehumidification. Outdoor terminal box and power distribution box with automatic heating and dehumidification function to prevent creepage and misoperation accidents. Automatic heating and dehumidification for high-voltage power distribution units and high-pressure switch mechanism boxes indoors. Automatically activates in low-temperature environments to prevent switch failure due to cold conditions. Features: Displays temperature and humidity. Supports different models to control output based on temperature and humidity changes. Includes RS485 communication function. High-performance, high-precision, and durable temperature sensor capable of long-term operation in various environments. Model: MH0302 Supply: 85~250VAC, 50-60Hz Power consumption: 2W Resolution: 0.1 Control output: 3A, 250VAC (Resistive load) Display: LED Temperature set range: -40 to 120°C Humidity set range: 0 to 99.9%RH Differential setting for temperature: 0 to 9°C, for humidity: 1 to 9%RH Accuracy: ±1°C for temperature, ±5%RH for humidity Operating temperature: -10°C to 50°C Operating humidity: 45% to 85%RH Mechanical life: At least 300,000 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 x 8.0 x 10.0 cm Package Contents: 1 x Temperature and humidity controller MH0302 1 x Temperature and humidity combined sensor with 3-meter cable 1 x User manual Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight variations between the color of the item in the image and the actual product. Measurement error allowed is ±1-3 cm.