Size: 45MM * 26MM
Refresh rate: about 1S / times
Supply voltage: DC 4-28V
Accuracy: 1 °C
Measuring temperature: -20 °C ~ 100 °C
Working temperature: -40 °C to 80 °C
Display color: Red + Blue
Sensor Type: 1M NTC waterproof metal probe
Display: 0.28 LED
Minimum resolution: 0.1 °C
Instructions for use:
 DC power supply: This product requires access 4-28V DC power supply, the red line for positive power supply, the black wire to the negative power. The greatest feature of this product: its own reverse anti-burning circuit, avoiding the user process due to improper operation problems. Friendly reminder: must not be connected with AC 220V Oh!
 Display Description: When the temperature sensor is removed when the digital display "- - -", the temperature is below -20 °Cor above 100 °C, digital also shows "- - -."
 Acquisition normal temperature range: -20 °C to 100 °C, resolution 0.1 °C, accuracy of 1 °C.
(1) measuring the temperature inside and outside the car
(2) measuring the temperature inside and outside the air-conditioned room
(3) measuring the temperature inside and outside the refrigerator
(4) temperature measurement pond
(5) baby bath water temperature measurement
1 x Mini DC 4-28V Dual Display Digital Thermometer NTC Waterproof Metal Probe Temperature Sensor Tester for Car Room Indoor