Suitable for testing DC circuits with voltages between 3 and 28V. No earth clips to get tangled - simply contact the wire to be tested and touch your finger on bare metal ground to get a reading. Tester illuminates LED, buzzes and vibrates on contacting live wire. Computer-safe for use around delicate engine management systems. Supplied fitted with two long-life N-sized batteries. Features & Benefits:Suitable for testing DC circuits with a voltage between 3 and 28V.No earth leads to get tangled - simply contact the wire to be tested and touch your finger on bare metal ground to get reading.Tester illuminates LED, buzzes and vibrates on contacting live wire.Model No. AK415 Specifications: Model No AK415 Brand: Sealey Nett Weight: 0.03kg