W1209 DIGITAL TEMPERATURE CONTROLLER THERMOSTAT MODULE

The XH-W1209 is a 12V digital thermostat controller with 3-digit 7-segment display and 3-button keypad (SET, +, −). NTC10K thermistor sensor with ±0.1°C accuracy. Onboard relay controls AC or DC loads up to 10A. Supports heating (H) and cooling (C) modes. 6 configurable parameters via long-press menu.

Parameter Settings (long-press SET for 5s):

• P0 — Mode: Cooling (C) or Heating (H) — default: C
• P1 — Hysteresis (backlash): 0.1–15°C — default: 2
• P2 — Upper temperature limit — default: 110°C
• P3 — Lower temperature limit — default: −39°C
• P4 — Temperature offset correction: −7.0 to +7.0 — default: 0
• P5 — Relay trigger delay: 0–10 min — default: 0
• P6 — High-temperature alarm: 0–110°C — default: OFF

Specifications:

• Model: XH-W1209
• Supply Voltage: 12V DC
• Sensor: NTC10K thermistor (50cm cable)
• Accuracy: ±0.1°C
• Relay Output: 1-channel, max 10A
• Refresh Rate: 0.5s
• Static Current: ≤35mA
• Operating Temperature: −10 to +60°C

Applications:

• Automatic ON/OFF for heaters, coolers, and fans
• Electric water heater auto cut-off
• Temperature monitoring and fire alarm systems
• Incubator and greenhouse climate control