XH-W3002 Intelligent Led Digital Microcomputer Temperature Controller
XH-W3002 Intelligent LED Digital Temperature Controller
Mini Thermostat Switch High-Power Temperature Control Waterproof Probe
The XH'W3002 Digital Temperature Controller is a compact microcomputer-based thermostat module designed to automatically control heating or cooling devices based on temperature. It includes a water-resistant temperature probe, LED display, and relay output capable of controlling loads up to 10A.
This controller is widely used in incubators, aquariums, refrigerators, greenhouses, and DIY temperature control systems.
Infographic Overview
Basic Specifications
Feature | Details | |
Temperature Range | -50C to 110C | |
Input Voltage | 12V / 24V / 220V (model depended> Display | LED Digital Display |
Sensor Type | Waterproof NTC Probe | |
Control Mode | Heating or Cooling |
Main Components
Component | Description |
LED Digital Display | Shows real-time temperature |
NTC Temperature Probe | Detects temperature changes |
Microcontroller Circuit | Processes temperature data |
Relay Output | Controls external devices |
Control Buttons | Used for setting temperature limits |
Wiring / Terminal Configuration
Terminal | Function |
VCC / Power InpD / Neutral | Ground or neutral line |
Relay Output (NO/COM) | Connects heating or cooling device |
Sensor Probe | Temperature detection input |
Working Principle
The controller maintains a set temperature using automatic switching control.
Step-by-Step Operation
1 The temperature probe measures ambient temperature.2 The internal microcontroller compares it with the preset temperature value.3 If temperature rises or drops beyond the set threshold:
The relay switches ON or OFF. 4 The connected device (heater or cooler) adjusts the temperature automatically.
Temperature Control Diagram
Temperature Probe'Microcontroller Uer Device
Common Applications
Egg incubators Aquarium temperature control Greenhouse climate control Refrigerator temperature regulation Laboratory temperature systems DIY cooling and heating projects
XH-W3002 vs W1209 Temperature Controller
Feature | XH-W3002 | W1209 |
Display | LED | 7-segment display |
Load Capacity | 10A | 10A |
Probe Type | Waterproof probe | NTC thermistor |
Programming | Simple thermostat mode | Advanced parameter settings |
Advantages
High current relay output (10A) Wide temperature measurement range Wate cooling control
Limitations
Limited advanced programming options Requires proper electrical wiring for safety Accuracy depends on probe placement
Example DIY Project
Smart Greenhouse Temperature Control
Components
XH'W3002 Digital Temperature Controller
Heating lamp or cooling fan
Power supply
Greenhouse enclosure
Working
Sensor monitors greenhouse temperature Controller activates fan or heater automatically