Power Socket - Voltmeter Three-in-one
 
Installation method: first use a hole opener to open three holes with a diameter of about 3cm, put the product in, and then fix it with threads
Tighten the ring and that's it!
Product Features:
1. Dual USB sockets and cigarette lighters can be used with USB to support charging of various electronic products.
2. USB with LED blue indicator, voltmeter with red LED digital display.
3. High current resistance, high temperature and wear resistance.
4. With a waterproof cover, if not in use, it can be covered with a rubber cover to prevent dust and water.
5. You can timely grasp whether the battery voltage is within the normal range of use.