Amprobe PM51A Pocket Digital Multimeter
Amprobe began life in Long Island, NY in the late 1940's under the name Pyramid Instrument Company. In 1960 the company name was formally changed to Amprobe Instrument Corporation. Amprobe continued to design, engineer, manufacture and distribute product from its Lynbrook, NY location until it was merged to form ATP and relocated to South Florida in late 1999. The Amprobe PM51A Red & Black Shirt-Pocket DMM w/ Frequency & Capacitance is only 3/8" thick and weighs less than 3 oz. With full functionality offering ac and dc voltage to 600 V, resistance to 40 Megohm, capacitance to 3000 μF, frequency to 1 MHz, continuity with a beeper, and a diode test. It being fully autoranging, this meter offers seven different measurement functions with 27 full ranges of measurement. The digital display is oversized with large digits and annunciators. In spite of its size, this meter is fully safety rated to CAT III 300 V, CAT II 600 V and is UL listed. No other meter offers this small size with such performance and high safety ratings.