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  • August-09 2016 15:21:33

    Powered up Raspberry with Huawei E3372 4G modem. Shows voltage and temperature. Good product.

  • August-21 2016 04:34:38

    Good packaging, good quality. Accurate measurement, lack of information, ease of use.

  • October-18 2016 04:19:20

    Charging current (2,1 A) fits tablets, not phones. It wasn’t mentioned in details.

    Comments (1)
  • April-28 2020 03:47:55

    Ordered a second one after on the first one the thermocouple wire broke off. So be careful not to bend this wire too much.

  • September-28 2020 03:15:39


  • June-12 2015 02:04:10

    My car didn’t have a voltmeter and its thermometer shows only the external temperature. Now I can see the condition of the battery even when I drive as well as the temperature inside the car’s cabin. Of course I can charge my phone at the same time. The display is very beautiful and the only negative I found is that it is too long and it protrudes a lot from the console. Nevertheless I’m happy with it.

  • April-08 2015 09:35:34

    Excellent product. Unique - have not seen anywhere else. Very useful to diagnose batter vs alternator problems. Gave one to each daughter so when they phone with car starting issues, I can tell weather its battery or alternator. Bought on sale though, not sue I would pay full price..bit high. Buy several as gifts its unique for gear heads - don't know why car mfgrs do not include volt meters instead of tachometers on slow economy 4 cyl. cars with automatic - totally dumb and waste of money!

  • August-31 2017 01:46:36

    I bougt this one because I wanted to know the car voltage during the car is ON. But luckily I fount this one - 3 in 1. Voltage, temperature and also power supply for devices with 5 volts. Very interesting item for me and useful very much. Currently no issue with it. And also I am surprised how hot is in the car during the summer. For sure - recommended.

  • February-08 2017 23:52:29

    I find it very useful to know the temperature and battery voltage in my car at all times. If you are sitting in your car waiting for something, and listening to the radio or running the fan without the motor running, it is very useful to know what the battery voltage is so as to not run the battery flat.

  • January-27 2017 19:01:49

    The product does what it should do. It provides you with the voltage of your battery/dynamo, gives you the current temperature and gives you a usb port to charge a usb-device on. About a month after I got it, I got a red flashing light on my car's dashboard, and because of this product I knew that the voltage was way to high at some times (reaching 19volts where 14.4 volt is normal for a running car). This product gave me a early diagnosis of the problem. I can confirm that the readings are accurate. The


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