Klein Tools Voltage Testers and Receptacle Tester Kit Model #ET45KITXT This Electrical Tester Set includes an ET45 Voltage Tester, NCVT1XT Non-Contact Voltage Tester, and RT210 GFCI Receptacle Tester. The ET45 is simple to use for checking and troubleshooting common residential wiring. The NCVT1XT detects voltage (70V to 1000V AC), allowing for versatile applications. The RT210 identifies common wiring issues in standard and GFCI receptacles, making this set essential for electrical work. The ET45 voltage tester provides accurate measurements for AC voltages (24V to 240V) and DC voltages (32V to 330V) across four levels, ensuring reliable electrical testing The built-in test lead holder on the back of the ET45 tester securely holds the leads in two positions: spaced for tamper-resistant US-style outlet testing and for easy storage The ET45 tester operates without batteries, powered directly by the applied voltage, allowing for uninterrupted, continuous testing The NCVT1XT offers non-contact detection of low voltage in systems like security, entertainment, communications, environmental control, and irrigation Built for durability, the NCVT1XT has an IP67 rating for dustproof and waterproof protection, along with 9.8-Foot (3 m) drop resistance The NCVT1XT features simultaneous visual and audible indicators, providing quick and reliable detection of voltage presence from 70 to 1000V AC RT210 detects issues in standard and GFCI receptacles, verifies ground fault device operation, and identifies conditions: open ground, reverse polarity, open hot, open neutral, and hot/ground reversed