The MS5902R Circuit Breaker Finder/Socket Tester is use to find correct breaker or fuse and test socket. You will have annoyance no more for locating the correct circuit breaker supplying power to an AC outlet or lighting fixture.Multifunctional Circuit Breaker Finder Socket TesterCircuit breaker search functionNCV measurement functionStrong power (Less than 250V) wire finding functionZero line/fire line discriminationNCV sensitivity adjustmentFlashlight lighting functionLow-voltage battery alarmSocket test functionSpecifications:Test Voltage: AC110V-250VFunction 1: Socket TesterFunction 2: NCV MeasurementFunction 3: Circuit Breaker FinderFunction 4: Zero/Fire Line DiscriminatorWarm Prompt: Batteries are not included in delivery due to restriction on flight.Maintenance:1. Keep clean with a dry cloth.2. When the yellow LED is light on the MS5902R, please unscrew and remove cover, insert new 9V battery so as to the MS5902-R is well-balanced. Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on.Different batches may have different appearances, but will not affect the useVoltage: AC110-250VColour:GreenMaterial:ABSPackage Contents:1 x Circuit Breaker Finder(1 x 9V 6F22 battery not included)1 x Socket TesterOnly 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.