HT125A Multimeter Portable Digital Display Smart Voltage Meter for Industry Factory Home Item Type: Multimeter Material: ABS Model: HT125A Battery: 1.5V 2 x AAA (not included) Uses: Household circuit testing, industrial circuit testing, office circuit testing, outdoor work circuit testing Support Language: English General Technical Indicators Environmental Conditions For Use: CAT.Ⅲ 600V Pollution Degree: 2 Altitude: <2000m Working Temperature and Humidity: 0~40℃ (<80%RH, <10℃ non-condensing) Storage Degree: -10~60℃ (<70%RH, remove the battery) Temperature Coefficient: 0.1x accuracy/℃ (<18℃ or >28℃) Maximum Voltage Between Any Terminal And Ground: 600V Display: 4000 Counts, updated about 3 times per second Over Range Indication: Display "OL" Low Battery Indicator: Display "battery level" Input Polarity Indication: Automatically display the "-" sign DC voltage 400mV 0.1mV ±(0.5%+3) 4V 0.001V 40V 0.01V 400V 0.1V 600V 1V AC voltage 4V 0.001V ±(0.8%+3) 40V 0.01V 400V 0.1V 600V 1V Resistance 400Ω 0.1Ω ±(1.0%+5) 4KΩ 0.001KΩ 40KΩ 0.01KΩ 400KΩ 0.1KΩ 4MΩ 0.001MΩ 40MΩ 0.01MΩ ±(1.5%+10) Frequency 4Hz 0.001Hz ±(1.0%+3) 40Hz 0.01Hz 400Hz 0.1Hz 4KHz 0.001KHz 40KHz 0.01KHz 400KHz 0.1KHz 4MHz 0.001MHz