Product Description
METROTEL MT91A AMPLIFIER RECEIVER & PROBE NEWAmplifies 577 Hz tone tracing signals/60Hz filter Operates with aerial exploring coil and hand coil High impact plastic case protects test equipment Case has space for exploring coil Components (included in kit or available separatelyMT-147D Amplifier Adjustable, solid-state high gain amplifier raises low signals to audible level. Accepts exploring coil or inductive probe and headset. Receives 500 Hz to 755 Hz frequenciesMT-723 Headset Rugged craft headset used to monitor output of MT-147D Amplifier. Coiled 4′ cord with 310 plug.MT-513A Inductive Probe Amplifier for inductive pick-up of tone signal. Has 6-ft cord with 347B plug and ground clip. Measures 7″ x .5″ and weighs 4 oz.








