W1209 Digital Temperature Controller Thermostat Module
High precision W1209 thermostat module with 3-digit LED display, 10A relay output, and NTC waterproof temperature probe for incubators and cooling systems.
W1209 Digital Temperature Controller Thermostat Module is an original, pre-tested electronic module designed for Arduino, ESP32, Raspberry Pi, robotics, and embedded engineering projects. Includes verified pinout compatibility and nationwide express shipping across Pakistan.
W1209 Microcomputer Digital Temperature Controller Module
The W1209 is a precision, standalone digital thermostat controller equipped with an on-board STM8 microcontroller, 3-digit high-brightness LED display, 10A switching relay, and a waterproof NTC temperature probe. It requires no programming and allows full configuration of heating, cooling, hysteresis, and alarm triggers directly via on-board tactile buttons.
⚡ Technical Specifications:
- Temperature Control Range: -50°C to +110°C
- Resolution: 0.1°C (-9.9°C to 99.9°C), 1.0°C (other ranges)
- Measurement Accuracy: ±0.1°C
- Refresh Rate: 0.5 seconds
- Input Power: 12V DC
- Sensor Type: NTC (10K 0.5%) Waterproof 50cm Stainless Steel Probe
- Output Relay Capacity: 10A 250VAC / 20A 14VDC
- Environmental Requirements: -10°C to 60°C, Humidity 20%–85%
- Programmable Parameters: P0 (Cooling/Heating), P1 (Hysteresis), P2 (Max Limit), P3 (Min Limit), P4 (Correction), P5 (Delay Start), P6 (High Temp Alarm)
🛠️ Applications:
- Egg Incubator Temperature Control & Hatchers
- Aquarium Water Heating / Chilling Regulation
- DIY Greenhouses & Refrigerator / Freezer Conversion
- Server Rack Cooling & Industrial Equipment Protection
What's Included in the Package:
- 1x W1209 Digital Thermostat Controller Board
- 1x Waterproof 0.5m Stainless Steel NTC 10K Temperature Probe
Pinout Interfacing & Testing Guide:
Check the silkscreen pin labels (VCC, GND, SDA/SCL or I/O) and confirm whether your microcontroller uses 3.3V or 5V logic.
Wire the power, ground, and signal pins to your Arduino, ESP32, or Raspberry Pi using breadboard jumper wires.
Upload a standard test sketch via Arduino IDE or MicroPython and verify live readings on the Serial Monitor.
Need a Custom 3D Printed Casing or Multilayer PCB?
Get custom snap-fit enclosures and robotics parts printed via our custom 3D printing service in Lahore & Pakistan, or order industrial double-sided circuit boards through our custom PCB fabrication service with nationwide delivery.
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