2X Dual Red LED Digital Display Thermometer Waterproof Temperature Sensor 0.56 Inch

2X Dual Red LED Digital Display Thermometer Waterproof Temperature Sensor 0.56 Inch Popis

Display Color: red
Display Way: 0.28 inch LED digital tube Display: Digital
Refresh Rate: 4s/times
Measurement Precision: 1 celsius
Operating Temperature: -40~85 celsius

Shell Size: 47.8 x 28.8 x 15mm
Sensor Type: NTC metal waterproof probe Power Supply Voltage: 4-28V
Minimum Resolution: 0.1 celsius Measurement Temperature: -20~100 celsius
Color: Black
Material: ABS
nstructions for use:
[1] power supply: This product requires access 4-28V power supply, the red 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!
[2] Display Description: When the temperature sensor is removed when the digital display "- - -", the temperature is below -20 Celsius or above 100 Celsius , digital also shows "- - -."
[3] Acquisition normal temperature range: -20 Celsius to 100 Celsius , resolution 0.1 Celsius , accuracy of 1 Celsius .
Product Usage:
measuring the temperature inside and outside the car
measuring the temperature inside and outside the air-conditioned room
measuring the temperature inside and outside the refrigerator
temperature measurement pond
baby bath water temperature measurement
Package contents:
2x monitor
4x 1M NTC waterproof metal probe
2x Wiring