W1209 Temperature Controller Module
W1209 Temperature Controller Module is backordered and will ship as soon as it is back in stock.
W1209 Temperature Controller Module
Take precise control of your heating and cooling applications with the W1209 Digital Temperature Controller Module. This compact and cost-effective 12V DC digital thermostat is perfect for DIY electronics, incubators, 3D printers, aquariums, refrigeration, or any project where reliable temperature regulation is essential.
Key Features
- Temperature Range: -50°C to 110°C for versatile heating and cooling applications
- Control Accuracy: ±0.1°C for precise temperature management
- 10A Relay Output: Switch high-power devices up to 10A at 12V DC
- 12 Volt Operation: Compatible with standard 12V DC power supplies and batteries
- LED Display: Clear digital readout of current temperature
- Three-Button Interface: Easily set target temperature and hysteresis
- NTC Thermistor Sensor Included: Waterproof probe for flexible placement and integration
- Heating/Cooling Modes: Configure as heating controller or cooling controller
W1209 Temperature Controller Applications
The W1209 12V DC digital temperature controller is ideal for:
- Incubators: Maintain precise egg incubation temperatures
- Aquariums & Terrariums: Automated heating control for reptiles and fish
- 3D Printer Enclosures: Temperature-controlled printing environment
- Refrigeration: DIY cooling systems and wine cellars
- Greenhouse Automation: Climate control for plant growth
- Fan Control: Activate cooling fans when temperature exceeds threshold
- Heater Control: Switch on heating elements when temperature drops
How the W1209 Digital Thermostat Works
The W1209 temperature control module uses a built-in relay to automatically switch connected devices on or off based on temperature readings. In heating mode, the relay activates when temperature falls below your set point (ideal for heaters). In cooling mode, the relay activates when temperature rises above your set point (perfect for fans or cooling systems).
The 10A relay can handle substantial loads, making this 12 volt temperature controller suitable for controlling heating pads, cooling fans, Peltier modules, solenoid valves, and other 12V devices. The hysteresis setting prevents rapid on/off cycling, extending the life of your connected equipment.
W1209 vs W3230 Temperature Controllers
The W1209 is a single-stage controller ideal for simple heating or cooling applications. For dual-stage control (simultaneous heating and cooling), consider the W3230 Digital Temperature Controller 12V or W3230 24V, which feature dual relay outputs for more complex temperature management.
Getting Started with W1209
Setting up your W1209 temperature controller is straightforward:
- Connect 12V DC power supply to the module's power input terminals
- Connect your heating or cooling device to the relay output terminals (up to 10A)
- Insert the NTC thermistor probe in your monitoring location
- Set your target temperature using the three-button interface
- Configure heating or cooling mode based on your application
- Adjust hysteresis to prevent rapid switching
For detailed wiring diagrams, configuration steps, and troubleshooting tips, see our comprehensive guide: W1209 Setup Instruction Guide.
Temperature Sensor Options
The W1209 includes a waterproof NTC thermistor probe. For longer cable runs or replacement sensors, consider the NTC Temperature Sensor Thermistor 1m. For digital temperature sensing in other projects, explore our full range of temperature sensors.
Specifications
- Operating Voltage: 12V DC
- Temperature Range: -50°C to +110°C
- Temperature Accuracy: ±0.1°C
- Relay Rating: 10A at 12V DC (resistive load)
- Sensor Type: NTC thermistor (waterproof probe included)
- Display: 3-digit LED
- Control Modes: Heating or Cooling
- Hysteresis Range: 0.1°C to 15°C adjustable
The W1209 temperature controller module provides reliable, automated temperature control for 12V DC systems, making it an essential component for DIY temperature regulation projects, smart home automation, and precision climate control applications.
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