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12V Digital Thermostat with Waterproof Probe and Relay – Temperature Control for Incubator, Hatcher, Aquarium, Greenhouses
The 12V digital thermostat is ideal for temperature control in various applications: egg incubators, hatchers, aquariums, greenhouses, boilers, cooling or heating systems. The device automatically switches between heating and cooling modes and provides precise temperature control from -50°C to +110°C.
It includes a waterproof NTC probe, a power relay, and an LED display updating every 0.5 seconds. All functions can be customized via the programming menu accessible through the SET button.
Technical Specifications
| Power supply: | 12V DC |
| Maximum switched current: | 7A / 12VDC, 7A / 250VAC |
| Temperature range: | -50°C – 110°C |
| Resolution: | 0.1°C |
| Measurement accuracy: | ±0.1°C |
| Probe: | NTC 10K waterproof (40cm cable) |
| Dimensions: | 48 x 28 x 32 mm |
| Panel cutout: | 46 x 26.5 mm |
Recommended Applications
- Egg incubators and hatchers
- Temperature control for aquariums or pools
- Climate automation in greenhouses
- Thermal protection for compressors, boilers, and fans
Programming Instructions
- Press and hold the SET button for 5 seconds
- Use the + and – buttons to select the parameter (P0–P8)
- Press SET again to change the value
- Confirm the change by pressing the SET button once more
Customizable Parameters
- P0: Operating mode (heating / cooling)
- P1: Temperature hysteresis (default: 2°C)
- P2: Upper temperature limit (default: 110°C)
- P3: Lower temperature limit (default: -50°C)
- P4: Sensor calibration
- P5: Relay switch delay (0–600 seconds)
- P6: High-temperature alarm
Installation Precautions
- Do not exceed the relay’s maximum current – use an external contactor if necessary.
- The sensor should be mounted with the bulb facing up and away from air currents or fans.
- Avoid routing sensor cables near power lines.
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