Feature:1. With wide testing range, this non-contact voltage tester voltage within AC 12-1000V with high sensitivity, all electric appliances in your family can be tested by it.2. The voltage pen tester detects voltage in a non-contact way, so do not worry about there could be any possibility of being shocked by the electricity.3. Great for testing AC cables, circuit breakers, wall sockets, junction boxes, fuses, etc.4. If the instrument is not operated and no induction signal about 3 minutes, it will turn off automatically.5. It has flashlight function, convenient to use at night or dark corner.6. A professional tester, it is perfectly suitable also for DIYers, hobbyists and home owners, it helps you make the first and the most important safety check.7. Non contact phase sequence detection, after starting up, press the sensitivity or phase sequence or flashlight key for less than 1 second to switch until the display shows the P symbol, and enter the phase sequence detection state.Specification:Condition: 100 percent Brand NewItem Type: Non Contact Voltage DetectorMaterial: ABSColor: As shown in the pictureNcv Test Voltage Range: 12-1000v 50 or 60hzPhase Sequence Detection Voltage Range: 90-400v 50 or 60hzOperating Environment:Operating Temperature: 0-40 Storage Temperature: -10-50 Humidity: 95 percent Or LessAltitude: 2000 MFunctional ParameterAccuracyDisplayAnalog barVoltage detection rangeHigh sensitivity AC121000VLow sensitivity AC48-1000VFrequency50 or 60HZAlarm typeSound and light alarmNon contact phase sequence detectionYesProbe shapeFlat rectangleBacklightRed and green backlightLive or Null DetectionAccording to Color. Green are Null or Red are LiveSignal strength displayAnalog bar four-level sensitivitySignal strength indicatorThe beep sound changes from slow to fast the backlight color changes from green to red the analog bar changes from low to highFlashlightYesAuto power-offNo key operation, no sensor signal automatically shuts down after about 3 minutesBattery undervoltage displayYesPower supply2x1.5V AAA battery(Not included)WeightApprox.33g or 1.2ozSize157x23x26mm or 6.2x0.9x1.0inSafety levelEN61010-1, -2-030 EN61326-1, safety level CAT ll1000V.Package List:1 x Non Contact Voltage Detector1 x Instruction ManualNote:1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.