Digital Multimeter Kit 4000 Counts Smart High Accuracy Automatic Ranging Ohm Amp Volt Non Contact Tester Item Type: Digital Multimeter Model: HT123 Material: ABS Battery: 2 x 1.5V AAA(not included) Function: Measure AC DC voltage, voltage, continuity Note: Current cannot be tested Operating Temperature and Humidity: 0~40℃(<80%Rh, <10℃ non condensing), Altitude: <2000meter Storage Temperature And Humidity: -10~60℃(<70%Rh, take out the battery) Overrange Indication: Display "OL" Maximum Count: 4000 Sampling Rate: 3 Times per second Data Retention: Yes Display With Stalls: Yes NCV Non Contact Detection: Yes Data Retention: Yes Battery Undervoltage Indication: Yes Automatic Shutdown: Yes Flashlight: Yes Basic Parameters: DC Voltage: 4V: 0.001V resolution 40V: 0.01V resolution 400V: 0.1V resolution 600V: 1V resolution Measurable Voltage: 0.8~600V; Overload Protection: 600V; Maximum Measured Voltage: 600V AC Voltage: 4V: 0.001V resolution 40V: 0.01V resolution 400V: 0.1V resolution 600V: 1V resolution Measurable Voltage: 0.8~600V; Overload Protection: 600V; Value Ranges: 40~1000Hz Resistance: 4KΩ: 0.0011kΩ resolution 40KΩ: 0.01KΩ resolution 400KΩ: 0.1KΩ resolution 4MΩ: 0.001MΩ resolution 40MΩ: 0.01MΩ resolution Overload Protection: 250V On Off Test: Resistance < about 50Ω, buzzer sound, indicator light green