ANENG ST209 Digital Multimeter Clamp Meter 6000 Counts True RMS Amp DC/AC Current Clamp Tester Meters Voltmeter 400V Auto Range Feature 1-1. Display: liquid crystal display (LCD); 1-2. Maximum display: 5999 (3 5/6) bit automatic polarity display; 1-3. Measurement method: double integral A/D conversion; 1-4. Sampling rate: about 3 times per second; 1-5. Overrange display: The highest position shows“OL”; 1-6. Low voltage display:“Low voltage symbol ”symbol appears; 1-7. Working environment:(0~40)°,relative humidity<80%; 1-8.Power: AAA 1.5V battery(not include); Functional parameters Function DC voltage DCV ▲ AC voltage ACV ▲ DC current DCA ▲ AC current ACA ▲ Resistor / Diode / On-Off Test / Capacitor ▲ Frequency F ▲ Square wave output ▲ NCV ▲ Zero line /Fire line test Full unit symbol ▲ Backlight manual/Auto off ▲ True RMS measurement ▲ Temperature(°/°) ▲ Flashlight lighting ▲