Tester Circuit 'Circuit Master'

- Features and Benefits: Use to test all primary electrical circuits plus any on-board computer systems Test computer circuits without fear of causing damage to expensive electronic components Completely safe to use on microprocessor control modules Operating range from 3-15 volts Current draw is less than 21 milliamps at 12 volts D.C. Long life LED glows when voltage is sensed at probe and indicates polarity: red is positive, green is negative. Use to locate shorts, opens and intermittents. Made of high impact chemical resistant plastic. Supplied with 4 foot ground wire. All solid state construction. Circuit Master is supplied with Protect-A-Terminal Probe Adapter, which will not deform sensitive female terminals at computer connections.