Handheld digital multimeter. Measurement: DCV, ACV, DCA, ACA, Resistance, Capacitance, Frequency, Temperature, Diode, Continuity beeper. A/D counts no.: 4000 counts. Range selection: auto range with manual range selecting. Data output: RS232 PC serial interface, photo couple. Zero adjustment: automatic. Sampling time: approx. 0.5 to 1 second. Operating temperature: 0°C to 50°C (32°F to 122°F). Operating humidity: Max. 80%RH. Power supply: 1.5V battery x 2 PCs UM-4/AAA/Micro/R03 type. Power consumption: approx. DC 2.5mA
