Extremely easy to use, all you have to do is place it in your car's cigarette lighter socket and attach it with the adhesive in a convenient spot.

You will be able to see at any time:

• the time
• the temperature inside/outside the car
• the status of your vehicle's battery

It features an external temperature detection sensor with a 1.40 m cable and the option to choose between 2 lighting colors (blue or orange). It is compatible with all vehicles that have a car cigarette lighter.

To check the condition of your car battery:

• Turn the engine switch to the first position to measure the battery and not the dynamo.
• The voltage of the battery is digitally displayed on the voltmeter screen.
• If the voltmeter shows a voltage of 11.9V-12.8V, your battery is in good condition. If it is below 11.9V, you should have it checked by a car electrician.

To check if the dynamo is charging the battery correctly:

• Follow the same procedure as measuring the battery, with the difference that the engine must be running.
• Start the engine and maintain 2,000 RPM.
• If the voltage is below 13.3V, the dynamo is not charging the battery properly. If it is 13.4-14.2V, it is charging normally.
• If the voltage is above 14.5V, there is a risk of overcharging and damage to the battery.

* The lighter plug must not be cut.