ITEM NAME:Car Voltage Digital Monitor Battery Alarm Clock LCD Temperature Thermometer Product Description Description: Features: Date/Time display, 12/24 hours system ℃/℉ display switchable Snooze function,snooxe time:5 minutes Temperature range: -50℃ to +70℃ 2 colors of LED backlight are available Temp metering duration: 20 seconds Displays car battery voltage Specifications: Color: Random Temperature range: -50℃ to +70℃ Thermometer resolution:1℃ Accuracy:Â ±1.0℃ Dimensions: 9.2 x 7.5 x 2.8cm Key Function: Time Key: Switch over between Time and Date, press TIME key for 2 seconds to enter the time setting status. ALM Key: Display the alarm time, press ALM key for 2 seconds to enter the alarm setting status.. UP Key:Upward key+1, Under alarm setting status, press UP key tp turn on/off the alarm sound. SNZ Key: Set snooze DOWN/℃ /℉ Key: Downward key-1, switchover between ℃/℉, press DOWN ℃/℉ key for 2 seconds to turn on the outdoor Freeze-alert. Included: 1 x Car Voltage Digital Monitor.UP Key:Upward key+1, Under alarm setting status, press UP key tp turn on/off the alarm sound. Temperature range: -50℃ to +70℃. DOWN/℃ /℉ Key: Downward key-1, switchover between ℃/℉, press DOWN ℃/℉ key for 2 seconds to turn on the outdoor Freeze-alert.