WiFi Remote Digital Temperature Controller Module + NTC Probe
WiFi Remote Digital Temperature Controller Module + NTC Probe
WiFi Remote Digital Temperature Controller Module with NTC Probe
Take full command of your heating and cooling systems from anywhere with this high-precision WiFi Remote Thermostat Temperature Controller Module. Engineered for makers, hobbyists, and professionals alike, this compact module delivers ±0.1°C accuracy and seamless app-based control — all from the palm of your hand. Whether you're managing an aquarium, fermentation chamber, greenhouse, or any temperature-sensitive setup, this controller keeps conditions exactly where you need them.
Key Specifications
- Power Supply Voltage: DC 6.0V – 30V
- Temperature Control Range: -40°C to 110°C (-40°F to 230°F)
- Control Accuracy: 0.1°C (High Precision)
- Sensor Input: NTC10K (0.5m waterproof probe included); also supports 18B20 digital sensors
- Refresh Rate: Every 1 second
- Output: 10A relay output (functions as a switch; does not output voltage)
- Communication: WiFi (app control) + Modbus standard protocol (baud rates: 9600 to 115200)
- Modbus Address Range: 1–247
Feature Highlights
- Heating Mode (H): Relay activates when the current temperature drops to Set Temperature minus the Backlash value; relay cuts off once the target temperature is reached.
- Cooling Mode (C): Relay activates when the current temperature exceeds Set Temperature plus the Backlash value; relay cuts off once the target is met.
- Delay Startup (dLY): Configurable delay (in seconds) prevents rapid cycling — the controller waits out the delay before executing another heating or cooling cycle.
- Temperature Correction (OFE): Fine-tune displayed readings with an offset calibration value to ensure long-term accuracy.
- High/Low Temperature Alarm: Audible buzzer alerts and automatic relay disconnect when temperature exceeds high-alarm or drops below low-alarm thresholds.
- Emergency Stop Function: Instantly cuts relay output in any state; digital display shows "OFF" for clear status feedback.
- Sleep Mode: Backlight auto-off after 10 minutes of inactivity to conserve energy.
- Relay Status Indicator: Digital tube displays "OUT" when the relay is active for at-a-glance monitoring.
- Modbus Protocol Support: Integrate easily into industrial or custom automation systems.
What's in the Box
- 1× WiFi Remote Thermostat Temperature Controller Module
- 1× NTC10K Waterproof Probe (0.5m cable)
Made in Mainland China.
For guidance on safe electrical wiring practices and DIY electronics safety, visit the U.S. Consumer Product Safety Commission (CPSC).
Learn more: PID controller
Frequently Asked Questions
Q: What devices can I control with this WiFi temperature controller module?
A: This module can control any heating or cooling device that runs through a relay switch — including space heaters, heat mats, fans, refrigeration units, aquarium heaters, fermentation temperature controllers, and more — as long as the load does not exceed the 10A relay rating.
Q: Does the WiFi remote thermostat work with a smartphone app?
A: Yes. The module connects to your WiFi network and pairs with a compatible smartphone app, allowing you to monitor and adjust temperature settings remotely from iOS or Android devices.
Q: Can I use a different temperature sensor with this controller?
A: Absolutely. While the included NTC10K waterproof probe (0.5m) covers most use cases, the module also supports 18B20 digital sensors for expanded flexibility in different environments.
Q: What is the Backlash Temperature setting used for?
A: The Backlash (hysteresis) setting prevents the relay from rapidly switching on and off around the target temperature. For example, in heating mode with a set point of 30°C and a backlash of 5°C, the relay turns on at 25°C and off at 30°C — protecting your connected equipment from wear caused by rapid cycling.