DROK Digital Thermometer, DC 4-28V -50 to +125 Degree Celsius Indoor Outdoor Thermometer with Dual LED Display, High Accuracy Temperature Gauge Tester with 2 Waterproof NTC Temperature Sensor Probe;

Product Parameters:
Dimension: 45*26mm
Refresh speed: 1s/times
Power supply: DC4-28V
Measuring accuracy: 1℃
Measuring range: -50℃ to +125℃
Sensor type: 1M NTC waterproof metal probe
Display: 0.28 LED
Min. resolution: 0.1℃

Using instruction:
1. DC power supply: This product needs DC 4-28V power supply.
The red wire is connected to the positive side of power supply and the black wire is connected to the negative side of power supply.
This product has anti-burning circuit when reverse connecting. Please do not connect to AC 220V.
2. Display illustration: when you put off the temperature sensor, the LED display will display "---". When the temperature is lower than -50℃ or higher than 125℃, the LED display will display "---".
3. Normal temperature measuring range is -50℃ to +125℃, the resolution is 0.1℃, the accuracy is 1℃.

Application:
Test the inside/outside temperature of car.
Test the inside/outside temperature of air-conditioned room.
Test the inside/outside temperature of refrigerator.
Test the temperature of fish pond.

Package Includes:
1* Digital Thermometer
2* NTC Metal Temperature Sensor