Feature:1. VC850C Panel Design: The clear panel of 3 phase rotation meter makes operation simple and convenient, allowing for easy and quick use.2. Clamp Design: The non contact measurement clamp design of rotation meter ensures safety and reliability, with range indicators for easy operation.3. Back with Magnet: The back of 3 phase rotation meter features 4 magnets for convenient attachment to metal surfaces during testing.4. Simple Operation, Powerful Functions: This rotation tester is suitable for a variety of scenes, including power maintenance, railway circuits, home use, industrial and mining enterprises, and factory facilities.5. Working Parameters: Clamp wire size diameter 1.5mm to 16mm. Functions include phase detection (positive phase, reverse phase, missing phase), live line inspection, simple electricity check, fault location, and line repair. Powered by DC3V with 2 x AA alkaline batteries(without), offering approximately 70 hours of continuous use.Specification:Item Type: 3 Phase Rotation TesterMaterial: ABSMode: 850CClamp Able Wire Size: Approx. 1.5 to 16mm / 0.06 to 0.63inFunction: Phase detection (positive phase, reverse phase, missing phase), live line inspection, simple power inspection, breakpoint positioning, and line maintenancePower Supply: DC3V, 2 AA alkaline dry batteries, used continuously for about 70 hoursActive Range: AC 60-1000V, 45-65Hz (continuous sine wave input)LED Display:Positive Phase: 4 phase detection lamps light up in a clockwise direction in sequenceReverse Phase: Four phase detection lamps light up in a counterclockwise direction in sequenceActive Power: L1, L2, L3 lights light up within the voltage setting rangePhase Loss: L1, L2, or L3 lights do not light upOpen Circuit: L1 or L2 or L3 lights do not light upSound PromptsPositive Phase: The instrument emits intermittent short beepsReverse Phase: The instrument emits a continuous long beepBattery Indicator: After turning on, the power POWER indicator light is on; Low Battery LightMagnetic Force: There are four magnets attached to the back of the instrument, which are attached to the distribution box and can withstand a maximum weight of 800gAutomatic Shutdown: After about 5 minutes of power on, it will automatically shut downWorking Temperature and Humidity: -10 to 55 , below 80% RHStorage Temperature And Humidity: -20 to 60 , below 90% RHInsulation Strength: between the testing pliers and the casing>500M Suitable For Safety Regulations: For EN61010-1:2001; for EN61010-031:2002; Pollution level 2, CAT III 1000V, instantaneous overvoltage 6000VBattery: (LR6) AA dry battery x 2 [shipped without battery].Package List:1 x Phase Sequence Meter1 x Manual1 x Storage Bag