Cordless Circuit Tester Buzzer/LED 3-28V

- 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.