NCV induction voltage, sound and light reminder, visible and audible.VA HD reverse display flashlight function.Handheld -screen digital smart multimeter. It has the advantages of fast measurement data, -screen LCD dual display, lighting, and convenient reading for users.It has functions such as overload protection and battery undervoltage indication.Whether it is for , factories, schools, hobbyists or home use, it is an perfect multifunctional instrument.1000V . III Pollution level: 2Altitude Less than 2000 mWorking environment temperature and humidity: 0-40 ( Less than 80% RH, not considered when Less than 10 ).Temperature and humidity of storage environment: - 10-60 ( Less than 70% RH, remove the battery).Temperature coefficient: 0.1 accuracy/ ( Less than 18 or 28 ).Maximum allowable voltage between the measuring terminal and the earth: 1000V DC or 1000V AC Conversion rate: about 3 /secondDisplay: maximum 9999 counts LCD display, automatic display according to measuring function gear Unit .Over-range indication: LCD will display "OL".Low battery voltage indication: will be displayed when the battery voltage is lower than the normal working voltage.Input polarity indication: automatically display "-".Power supply: rechargeable lithium battery (3.7V/1000mA) Note: when the equipment is under power-on status Display "----", then unplug the charger and automatically switch to the normal measurement mode.Overall dimension: 143 x 75 x 19mmColour:blueMaterial:ABSPackage Contents:1 x Digital Multimeter1 x USB charging cablE1 x Tip table pen1 x Temperture probeOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.