AEMC’s AC/DC MR525 clamp-on current probe can operate in temperatures between 14°F and 131°F. It indicates the shape and amplitude of the current measured in the form of a voltage. It features a range overage and power supply indicators, auto standby mode and a micro-USB connector for an external power supply.
Fluke Networks’ Pro3000F filtered probe features a filter that removes signal interference at 50 or 60 HZ and their harmonics. It has a 10-mile range and a loudspeaker that allows toning through drywall.
Platinum Tools’ ToneSeeker TP250C tone tracer probe identifies wire and cable (when used with a analog tone generator) without having to make direct metallic contact with the conductor. It emits a clear tone as a cable is traced, and frequency filtering blocks out background noise.