DROK Fahrenheit Scale 0.56" DC 12V Digital Car Clock Thermometer Voltmeter 3in1 Red LED Auto Gauges DS18b20 Probe
Specifications:Feature:Multifunction, Time/Voltage/Temperature,3in1Display: 61x29x17.5mmInstallation dimensions: 58x26mmOperating temperature: -40 c -85 cPower Supply voltage: DC 7-30V ( with anti-reverse protection )Display: Four 0.56 "LED digital tubeDisplay Color: RedRefresh rate: about 300mS / timesMeasuring temperature: -67F to 257FAccuracy: about 0.2 cOverload: please do not higher than 300 FSensor Cable Length: 80-100cmSensor probe:18B20Some Application: for Measure Car, Room, Water, Refrigerator, Aquarium Temperature And DIY Etc   Measuring voltage: Range 0-200VDC , Accuracy +/-0.1VClock: 12-hour, the battery backup is available 3-4 years Display modes:Only display timeOnly display the voltageOnly display temperatureTime temperature voltage alternating display Mode setting button:Short press to select the clock, seconds, voltage, temperature display mode;Long press show "ALL", Enter the time temperature voltage alternating display mode，interval of 5 seconds. short press to exit Time setting button:Short press to adjust the hours, minutes (flashing),Short press again to exitShort press the "Mode setting button", the clock starts running Wiring of voltage measure:Red: Power Supply +Black: Power Supply -, Measure Voltage -Green: Measure Voltage + Package Includes:1x Digital Clock Voltmeter Thermometer 3-in-1