Programmable Thermostat Socket with NTC Sensor — Precise Automation Without an Electrician
Keep your electric heater running exactly when you need it, without having to get up in the middle of the night or worrying about leaving it on. This digital thermostat socket with an NTC sensor allows you to control any electric appliance up to 16A—from electric heaters and radiant panels to fans, refrigerators, or aquarium pumps.
Note: This thermostat socket does not generate heat itself; it controls the power supply to a connected heating or cooling device based on the temperature measured by the included NTC sensor.
Why choose this model? (Key Advantages):
- ±1% Precision with 0.1°C resolution — The LCD display shows real-time temperature with high accuracy.
- -40°C ~ 120°C Range — Equally effective in industrial freezers or tropical greenhouses.
- Waterproof 10K NTC Sensor with 1.8m cable — Place the probe in damp soil, aquariums, or at a distance from the socket with ease.
- 4 Timer modes (F01-F04) — Set automated on/off cycles to run for days without manual intervention.
- 16A / 230V Capacity (approx. 3680W) — Safely handles a 2000W heater with plenty of headroom, no extra fuses required.
- Manual calibration ±9.9°C — Easily correct any sensor deviation against a reference thermometer.
- Power-off memory — Automatically resumes your previous program after a power cut.
- Keylock function — Prevents children or others from accidentally changing your settings.
Performance and Details
The thermostat automatically detects the operating mode: if the start temperature is lower than the stop temperature, it enters heating mode (turns on when cold). If the start temperature is higher, it switches to cooling mode (turns on when hot). There is no physical switch; the logic is determined by the values you set.
The 10K / B3950 NTC sensor with its 1.8-metre cable reaches areas where the socket cannot be mounted—such as inside soil, water, or behind shelving. The LCD display provides a constant view of the current temperature, active mode, and output status (ON/OFF) at a glance.
| Parameter | Value / Detail |
|---|---|
| Supply voltage | AC 230V / 50Hz |
| Maximum load | 16A / 230V (~3680W) |
| Controlled temperature range | -40°C ~ 120°C |
| Display resolution | 0.1°C |
| Temperature control precision | ±1% |
| Calibration function | -9.9°C ~ +9.9°C |
| Programmable timer | 0 ~ 99 hours and 59 minutes |
| Timer modes | F01 (ON/OFF cycle), F02 (CD ON), F03 (CD OFF), F04 (CD ON+OFF) |
| Sensor type | NTC 10K / B3950, waterproof |
| Sensor cable length | 1.8 m |
| Additional features | Keylock, memory settings, factory reset |
Programming and Usage Instructions
- Set start temperature (ON-Temp): Press the SET button until the display flashes. Enter the temperature at which you want the device to turn on.
- Set stop temperature (OFF-Temp): Press SET again and enter the temperature at which the device should turn off.
- Operating mode (Heating / Cooling): The thermostat automatically detects the mode based on the relationship between your two set values. No manual switching is required.
- Sensor calibration: Hold SET for 5 seconds to enter the menu and adjust the displayed value against a reference thermometer within the -9.9°C ~ +9.9°C range.
- Activate timer (F01-F04 modes):
- F01 — Repeated cycle: turns on for the set duration, then off, then repeats.
- F02 — Countdown to start: device turns on after the set time expires.
- F03 — Countdown to stop: device turns off after the set interval.
- F04 — Combines F02 and F03: schedule both the start and stop times.
- Keylock: Press and hold the + and – buttons simultaneously for 3 seconds. Repeat to unlock.
- Factory reset: Use a pin to press the reset button in the designated hole. All values will return to factory defaults.
Package Contents
- 1x Digital programmable thermostat socket with LCD display
- 1x Waterproof 10K / B3950 NTC temperature sensor (1.8m cable)
Frequently Asked Questions
Does it work with a 2000W electric heater?
Yes, perfectly. The socket supports up to 16A / 230V, which is approximately 3680W. A 2000W heater is well within the safe operating limit.
Can I put the sensor directly in water or damp soil?
Yes. The included NTC sensor is waterproof, making it suitable for aquariums, damp soil, or greenhouses. Please ensure the socket itself and the power cable remain in a dry environment.
What happens to my settings during a power cut?
Nothing is lost. The socket features internal memory and will automatically resume all settings—temperature, mode, and timer—as soon as power is restored.
Can it control a refrigerator or air conditioner?
Yes. In cooling mode, it turns the device on when the temperature rises above your set threshold and turns it off when it reaches the desired level. It works with any 230V appliance consuming less than 16A.
When do I need the calibration function?
If you notice a consistent difference between the displayed temperature and a reference thermometer, you can use the calibration function to correct the deviation within a range of -9.9°C to +9.9°C directly from the menu.
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