BT15 can quickly detect whether your relay is normal.It is easy to use and suitable for general-purpose automotive relays on the market.Durng testing, it needs to be connected to a 12V-24V battery in the car.
6V-30V BT15 Battery Tester with Bluetooth APP Cranking & Charging System Test
BT15 Battery Tester with Bluetooth 5.1 APP 25 Languages Global User Friendly
