ZT109 Professional Digital Multimeter 9999 Count True RMS AC / DC Current Voltage Tester Condition: Item Type: Multimeter Material: ABS Backlight Time: 120s Count: 9999 Count Sampling Rate: 3 Seconds/Time Features Range Resolution Accuracy Maximum Others DC Voltage DC (V) 999.9mV 0.1mV ±(0.5%+3) 999.9V 9.999V 0.001V 40HZ‑1KHZ 99.99V 0.01V 999.9V 0.1V DC Voltage DC (MV) 9.999mV 0.001mV 99.99mV 99.99mV 0.01mV AC Voltage AC (V) 999.9mV 0.1mV ±(1.0%+3) 750V 9.999V 0.001V 99.99V 0.01V 750V 0.1V AC Voltage AC (MV) 9.999mV 0.001mV 99.99mV 99.99mV 0.01mV DC Current DC (A, mA) 999.9mA 0.1mA ±(1.0%+3) 9.999A 40HZ‑1KHZ 9.999A 0.001A AC Current AC (uA) 99.99uA 0.01uA ±(0.8%+3) 999.9uA 999.9uA 0.1uA AC Current AC (mA, A) 999.9mA 0.1mA ±(1.2%+3) 9.999A 9.999A 0.001A AC Current AC (uA) 99.99uA 0.01uA ±(1.0%+3) 999.9uA 999.9uA 0.1uA Resistance (Ω) 99.99Ω 0.01Ω ±(1.0%+3) 9.999MΩ 999.9Ω 0.1Ω ±(0.5%+3) 9.999kΩ 0.001kΩ 99.99kΩ 0.01kΩ 999.9kΩ 0.1kΩ 9.999MΩ 0.001MΩ ±(1.5%+3) Capacitance (F) 9.999nF 0.001nF ±(5.0%+20) 9.999mF 99.99nF 0.01nF ±(2.0%+5) 999.9nF 0.1nF 9.999uF 0.001μF 99.99uF 0.01μF 999.9uF 0.1μF 9.999mF 0.001mF ±(5.0%+5) Frequency (HZ) 99.99Hz 0.01Hz ±(0.1%+2) 9.999MHz 999.9Hz 0.1Hz 9.999kHz 0.001kHz 99.99kHz 0.01kHz 999.9kHz 0.1kHz 9.999MHz 0.001MHz Duty Cycle 1%‑99% 0.10% ±(0.1%+2) Diode Support Continuity Support Square Waves Output 50Hz/100Hz/200Hz/300Hz/400Hz/500Hz/600Hz/700Hz/800Hz/900Hz/1000Hz/2000Hz/3000Hz/4000Hz/5000Hz Power Supply 2 x 1.5V AAA Batteries (Battery Not Included) Product Size Approx. 130x65x32mm / 5.1x2.6x1.3in Operating Temperature 0‑40℃ Working Humidity <75% Storage Temperature ‑20‑60℃ Storage Humidity <80%