A smarter version of the popular 4200-RT, the DigiSmart 4300-RT handheld test set is ideal for troubleshooting 2-wire E&M, POTS and DID circuits, as well as for measuring voltage and levels.
Transmit/Receive MF, DTMF, and Dial Pulse digits
Emulate 2W E&M, POTS, and DID signaling
Measure Signal Level of tones including digits
Display DC voltage level and battery polarity
Nicollet Technologies 4300-RT