Kyoritsu Electric Meter Outlet Tester KEW4505BT

Instantly determine the polarity of the outlet! (Easy operation, just plug it into an outlet and press the measurement button) In addition to TT grounding, it is also possible to measure TN grounding by using a dedicated injector (*sold separately) (*Requires outlet tester injector [KEW 8341/KEW 8342], sold separately.) It is possible to determine incorrect wiring between N-E (neutral and ground) with live wires. Informs you of normal/incorrect wiring with LED (green/red) lamps and buzzer! You can communicate with the compatible application "KEW Smart*" and display/save measurement data and waveforms. Android app: Available for free on the Google Play Store (compatible with Android version 5.0 or later), iOS app: Available free on the App Store (compatible with iPhone, iPad, and iPod touch with iOS 10.0 or later) Functionality is further improved when used in conjunction with a dedicated injector (sold separately): ① Can measure even with TN grounding ② Can measure up to earth voltage 20V ③ Can measure even with low grounding resistance ④ Will not trip a 15 mA earth leakage breaker (test current 1 μA or less)