XH-W3001 DC 12V 120W Digital Microcomputer Thermostat Switch

XH-W3001 DC 12V 120W Digital Microcomputer Thermostat Switch is a precise and reliable temperature control unit, designed specifically for low-voltage applications that require automated heating or cooling management. This compact digital thermostat effectively uses a microcomputer chip to process temperature readings from its external NTC sensor, allowing you to set and maintain temperatures with exceptional accuracy. Consequently, the XH-W3001 serves as an ideal solution for controlling DC-powered loads up to 120W, such as fans, heating pads, or pumps in mobile, solar, or battery-backed systems. Furthermore, its direct-power output relay simplifies wiring, enabling efficient system integration and ensuring robust performance across diverse thermal management tasks.

Key Features:

• Digital Display Control: Features a clear three-digit LED display for easily viewing the current temperature and programming the set-point and hysteresis values.
• High Switching Capacity: Directly handles DC 12V loads up to 10A, providing a reliable 120W power output without needing an external power relay.
• Precise NTC Sensor: Includes a waterproof 10K NTC thermistor probe, offering high accuracy and stability for temperature measurement in liquids or humid environments.
• Temperature Hysteresis: Allows setting a customizable temperature difference (hysteresis) to prevent rapid on/off cycling of the load, significantly prolonging system life.
• Versatile Modes: The user can configure the unit for either heating (H) or cooling (C) applications, offering flexibility for various projects.

Technical Specifications:

• Input/Operating Voltage: DC 12V
• Load Power Output: Maximum 120W (DC 12V, 10A)
• Temperature Control Range: −50°C to +110°C
• Measurement Accuracy: ±0.1°C
• Control Precision: 0.1°C
• Sensor Type: NTC 10K (Waterproof probe, 1m length)
• Refresh Rate: 0.5 seconds

Mechanical Specifications:

• Casing Material: ABS Flame Retardant Plastic
• Mounting: Panel or Embedded Mounting
• Indicator: Red LED for Relay Status/Output
• Buttons: Two push buttons (UP/DOWN) for parameter setting.

Dimensions:

• Body Dimensions: ≈ 60 mm (L) x 45 mm (W) x 31 mm (H)
• Installation Hole Size: 4 mm (Mounting holes are typically pre-drilled for easy chassis attachment)
• Display Size: 37 mm x 18 mm (Three-digit LED segment)
• Weight: ≈ 55 g (Lightweight for portable systems)

Pinout and Wiring:

• Power Line (Red & Black Wires): The red wire connects to the positive side of the DC 12V power supply (V+). The black wire connects to the negative side (GND).
• Load Line (Yellow & Black Wires): The yellow wire connects to the positive side of the DC 12V load (e.g., heating element or cooling fan). The black wire connects the negative side of the load back to the main GND.
• Wiring Note: Always connect the input power source and the load power to their respective terminals; however, both the input and output share a common negative (GND) connection internally.

Datasheet Reference:

• Download XH-W3001 Thermostat Datasheet Reference

Commonly Used in:

• Aquaculture and Vivaria: Maintaining stable water or air temperatures in fish tanks, terrariums, and incubators.
• DIY Heating Systems: Controlling DC heating elements in solar water heaters, car refrigeration, or small battery-powered ovens.
• Cabinet Cooling: Activating DC cooling fans in telecom cabinets or computer server racks based on internal temperature rise.

Applications:

• Incubator Temperature Regulation: Automatically manages the environment for hatching eggs, ensuring highly stable conditions.
• Fermentation Control: Precisely controls the temperature of brewing and fermentation vessels.
• Power Supply Protection: Shuts down DC-powered equipment if the ambient temperature exceeds a dangerous threshold.
• HVAC Management: Controls auxiliary 12V heating/cooling components in specialized vehicles or off-grid shelters.

Equivalent Models:

• W1209 / W1219 (DC 12V versions): These share similar core functionality and control principles but often require a separate display housing.
• XH-W3002 (Higher Voltage Equivalent): While operating at AC 110V/220V, the W3002 shares the same programming and basic structure.
• STC-1000 Mini (12V versions): Often used as a professional-grade alternative for integrated cooling/heating control.

Package Includes:

• 1 x XH-W3001 DC 12V 120W Digital Microcomputer Thermostat
• 1 x 10K NTC Waterproof Temperature Sensor Probe (1 Meter)