Holdding Fahrenheit Scale °F 0.56" DC 12V Digital Car Clock Thermometer Voltmeter 3in1 Blue LED Auto Gauges DS18b20 Electronic Clock with Anti-reverse Protection Probe
[Product Information]
Power Supply voltage: DC 7-30V (with anti-reverse protection)
Measuring temperature: -67°F to 257°F
Measuring voltage: Range 0-200VDC, Accuracy +/-0.1V
Clock: 24-hour, the battery backup is available 3-4 years