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  2. W1219 Dual Display Programmable Temperature Control Switch Relay

W1219 Dual Display Programmable Temperature Control Switch Relay

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Thermostat Switch

$ 3.47 3.4650000000000003 USD $ 3.47

165.00 EGP

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مرجع داخلي: KIT.W1219.TEMP.CONTROL

XH-W1219 Dual Display Digital High-Precision Temperature Controller

Specifications:

  • Temperature Control Range: –50 °C to +110 °C
  • Resolution: 0.1 °C
  • Measurement Accuracy: ±0.5 °C (calibratable)
  • Display: Dual LED (Red = Current Temperature, Green = Set Temperature)
  • Power Supply: DC 12 V
  • Sensor Type: Waterproof NTC 10K thermistor, cable length ~0.5 m
  • Relay Output: Max 10 A (120 VAC) or 10 A (14 V DC)
  • Operating Current: ~40 mA (relay off), ~90 mA (relay on)
  • Dimensions: Approx. 60 × 44 × 16 mm
  • Weight: 22–28 g

Programmable Parameters (P0–P6):

  • P0: Heating (H) / Cooling (C) mode selection
  • P1: Hysteresis (Return difference) 0.1–30 °C
  • P2: Maximum temperature limit (up to +110 °C)
  • P3: Minimum temperature limit (down to –30 °C)
  • P4: Temperature calibration offset (–10 °C to +10 °C)
  • P5: Delay start time 0–10 minutes
  • P6: High-temperature alarm setting (0–110 °C, displays “HHH” when exceeded)

Applications:

Suitable for aquariums, incubators, greenhouses, refrigeration units, HVAC systems, and other temperature control projects.

Quick Setpoint Adjustment
  1. Press the SET button once.
    • The green display (setpoint) will flash.
  2. Use the + / – buttons to adjust in 0.1 °C increments.
  3. Press SET again to save, or simply wait 5–8 seconds — the display will auto-save and revert to normal
Entering Parameter Setting Mode (P0–P6)
  1. Long-press the SET button for about 3 seconds (on some units, you may need two attempts).
    • The red display will show P0, while the green display shows its current value (default “C”).
  2. Navigate between parameters using the + / – buttons.
  3. When you see the desired parameter (P0–P6), press SET to edit it — the value will flash.
  4. Adjust using + / –, then stop pressing — the module will auto-save after ~5–8 seconds and return to the temperature display
Parameter Guide (P0–P6)
Parameter
CodeFunctionDefault Value
P0Heat/Cool ModeChoose “C” (cooling — relay energizes at setpoint) or “H” (heating — relay de-energizes at setpoint).C (Cooling)
P1HysteresisTemperature difference before relay toggles again, helps avoid frequent switching. Range: 0.1–30 °C.Typically 2.0 °C
P2Max Setpoint LimitUpper boundary for set temperature. Range up to 110 °C.110 °C
P3Min Setpoint LimitLower boundary for set temperature. Range down to –30 °C.–30 °C
P4Temperature CalibrationOffset adjustment (–10 °C to +10 °C) to correct sensor errors.0.0 °C
P5Delay StartDelay before relay action after temperature is reached. Range: 0–10 minutes.0 minutes
P6High-Temp AlarmDefines alarm threshold. Above this, display shows “HHH” and relay de-energizes. Range: 0–110 °C.OFF / 0 °C
Factory Reset
  • Press and hold both the + and – buttons simultaneously for approximately 3 seconds to restore all settings to defaults.