W1209 Digital Thermostat with Relay – Temperature Control Board
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$ 3.00
The W1209 Digital Thermostat with Relay controls whether the relay is ON or OFF based on the temperature you set.
With its waterproof and durable temperature sensor, it can be used in projects that require operation under harsh conditions such as aquariums, incubators, refrigerators, and chick brooding cages. Please note that the sensor’s temperature reading may vary depending on humidity, so calibration is recommended for precise measurements.
W1209 Digital Thermostat Relay Usage:
- Press the Set button once, and the display will start flashing. Use the + and – buttons to adjust the temperature at which the relay will activate.
- Press and hold the Set button to enter the main menu. Navigate between P0–P6 menus using the + and – buttons. Press Set once to enter a menu. Use the + and – buttons to adjust values. Wait or press Set again to return, or press and hold Set to exit.
Menu Functions:
- P0: Cooling/Heating; Range: C/H; Default: C
- P1: Delay Setting; Range: 0.1–15; Default: 2
- P2: Maximum Temperature; Range: up to 110°C; Default: 110
- P3: Minimum Temperature; Range: -50°C; Default: -50
- P4: Temperature Calibration; Range: -7/7°C; Default: 0°C
- P5: Delay Start Time; Range: 0–10 min; Default: 0
- P6: Key Sound Switch; Range: 0–110; Default: Off
Example: When entering the menu by holding Set, the display shows P0. Pressing + six times shows P6, then press Set to enter P6. The default value 110 appears; using – reduces it to 40. Hold Set to save. The buzzer will sound when temperature reaches 40°C.
Specifications:
- Measurement Range: -50 to 110°C
- Dimensions: 48.5 x 40 mm
- Temperature Control Mode: ON/OFF
- Resolution: 0.1°C (-9.9~99.9°C), 1°C outside this range
- Control Accuracy: 0.1°C
- Hysteresis Accuracy: 0.1°C
- Refresh Rate: 0.5 s
- High Temperature Protection: 0–110°C
- Supply Voltage: 12V DC
- Idle Current: 35 mA
- Relay Active Current: 65 mA
- Output: 20A Relay
- Sensor: Waterproof NTC Type (10k ±0.5%)
- Operating Conditions: -10 ~ 60°C, 20%–85% RH
