XH-W1219 12V Digital Temperature Controller
XH-W1219 Digital Temperature Controller (12V)
Overview
Compact digital thermostat controller module
Controls heating or cooling devices automatically
Features dual LED display (temperature + set value)
Widely used in incubators, HVAC, and DIY automation
Working Principle
NTC 10K temperature probe senses temperature
Controller compares with set temperature (setpoint)
Based on mode:
Heating turns ON when temperature drops
Cooling turns ON when temperature rises
Relay switches load accordingly
Works as an automatic thermostat system
Key Specifications
Temperature Range: -50C to 110C
Sensor Type: NTC 10K waterproof probe
Accuracy: 0.1C
Output: Relay (10A max)
Hysteresis Range: 0.1C 30C
Delay Time: 0 10 minutes
Display: Dual LED (Red & Green)
Pin / Terminal Configuration
VCC 12V supply
GND Ground
K0 / K1 Relay output terminals
Sensor port NTC temperature probe
Features
Duemperature gap)
Built-in high-temperature alarm
Settings saved in non-volatile memory
Easy control using 3 buttons (SET, +, -)
Key Settings (Menu)
P0: Mode (Heating / Cooling)
P1: Hysteresis (difference)
P2: Max temperature limit
P3: Min temperature limit
P4: Calibration offset
P5: Delay start
P6: High temperature alarm
Applications
Egg incubators
Aquarium temperature control
HVAC systems
li
DIY automation projects
Usage Tips
Use proper 12V power supply
Ensure load is within 10A relay limit
Keep sensor away from electrical noise
Use external relay for high-power devices
Calibrate sensor if needed
Advantages
Plug-and-play (no coding required)
Dual display improves usability
Accurate and stable readings
Affordable and widely used
Limitations
Mechanical relay (limited switching life)
Not suitable for very high precision industrial use
Requires proper wiring for safety
Summary
A 12V digital thermostat controller
Measures temper
Controls load via 10A relay
Ideal for DIY, incubators, and automation systems