TT100
The Tone Tracer sets a new standard for field service professionals. Due to its slim, ergonomic design, as well as balanced weighting, the TT100 is the most comfortable tracer available. It can be used with either a wearable headset of a standard cell phone set. Quick-change tips make for easier in-field use.

TG300
Latch-Test^tm from Test-Um is a combination advanced tone generator and continuity tester for sensors, switches and circuits used in security/alarm systems. Latch-Test^tm features an audible, as well as a visible, indication of continuity that shows the true condition of a circuit's operability.