Sensor Boards And Modules
W1209 Thermostat Module
W1209 Thermostat Module – Precise Temperature Control!
ThisW1209 thermostat module monitors and controls temperatures from -50°C to 110°C. It features a 3-digit LED display and high precision of ±0.1°C. Ideal for home appliances, aquariums, and DIY projects.
₹85.00 exc. GST
The W1209 Thermostat Module is a versatile and cost-effective thermostat module designed for precise temperature control in various applications. Here’s a detailed description:
Working Principle:
The W1209 thermostat module uses an onboard microcontroller and a high-precision NTC temperature sensor to monitor ambient temperature. When the measured temperature deviates from the user-set target temperature, the module activates or deactivates a relay to control connected heating or cooling devices, maintaining the desired temperature range2.
Key Features:
Temperature Control Range: -50°C to 110°C
Measurement Accuracy: ±0.1°C
Display: 3-digit seven-segment LED display for real-time temperature monitoring
User Interface: 3 tactile switches for setting temperature and other parameters
Relay Output: 1-channel relay capable of switching loads up to 10A (240V AC or 12V DC)
Power Supply: Operates on 12V DC
Refresh Rate: 0.5 seconds
NTC Temperature Sensor: High-precision NTC sensor with a 10K ohm resistance
Technical Specifications:
Operating Voltage: 12V DC
Temperature Range: -50°C to 110°C
Control Precision: ±0.1°C
Relay Capacity: 10A (240V AC or 12V DC)
Display: 3-digit seven-segment LED
Sensor Type: NTC (10K ohm)
Dimensions: Approximately 60mm x 45mm x 31mm
Applications:
Home Appliances: Use in refrigerators, air conditioners, and water heaters to maintain optimal temperatures.
Aquariums: Monitor and control water temperature to ensure a healthy environment for aquatic life.
Greenhouses: Maintain ideal growing conditions by controlling heating and cooling systems.
Industrial Equipment: Use in machinery and processes requiring precise temperature management.
DIY Projects: Ideal for hobbyists and makers working on temperature-sensitive projects.
Food Storage: Maintain proper storage temperatures for perishable goods in cold storage rooms.
Advantages:
High Precision Control: Ensures accurate temperature management with a precision of 0.1°C, making it suitable for critical applications.
User-Friendly: Easy to set up and operate with a clear digital display and simple button interface.
Versatile Applications: Suitable for a wide range of applications, from household appliances to industrial equipment.
Robust Design: Built with quality components, including a waterproof temperature probe, ensuring long-lasting and reliable performance.
Wide Temperature Range: Can be used in environments with temperatures ranging from -50°C to 110°C, providing flexibility for various applications.
Limitations:
Power Requirements: Requires a stable 12V DC power supply, which may not be suitable for all applications.
Relay Capacity: The relay capacity is limited to 10A, which may not be sufficient for high-power devices.
Environmental Factors: Performance can be affected by extreme temperatures and humidity, requiring careful placement and use.
The W1209 Digital Temperature Controller is an excellent tool for anyone needing precise and reliable temperature control in their projects.





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