DC 4V-28V Mini Dual Display Digital Thermometer With Dual NTC Waterproof Metal Probe Temperature Sensor Tester for Car Room Indoor

Product Introduction: 1. Size: 48 * 29 * 22mm 2. Supply voltage: DC 4-28V 3. Measurement Temperature: -20 C to 100 C 4. Display Color: Red+Red/Red+Blue 5. Display Way: 0.28 LED 6. Refresh Rate: 1 s / times 7. Measurement Precision: 1 centigrade 8. Operating Temperature: -40 C to 80 C 9. Sensor Type: 1 m NTC 10K 1% watertight metal probe 10. Minimum Resolution: 0.1 centigrade Use Introduction: 1. DC Power Supply: this product must connect with DC 4-28 v power; red wire connects with power positive, black wire connects with power negative 2. Display: when take off temperature sensor, digital tube display "---"; when the temperature is lower than -20 centigrade or higher than 100 centigrade, digital tube will also display "---" 3. Normal Temperature Collection Range: -20 C to 100 C Applications: 1. Measure car internal and external temeprature 2. Measure air conditioning room indoor and outdoor temperature 3. Measure refrigerator internal and external temeperature 4. Measure fish pond water temperature 5. Measure baby bath water temperature Package included: 1 x Dual Display DC4-28V Thermometer NTC Metal Probe Temperature Sensor