... Buzzer function 3) Low battery indication4) Overload protection Digital clamp meter MT 87MT87 CLAMP METER 1. Multi use, 6 function, 7 range 2. Digits ... with a Max. reading of 1999 3. Diode and BuzzerMT87 CLAMP METER· Multi-use, 6 function, 7 range · 3 1/2 digits ... protection · Data hold for easy reading FunctionRangeAccuracyDC voltage600V±1.0%AC voltage450V±1.2%OHM 200KΩ±1.0%ACA 20-200 ...