The MM320KIT Digital Multimeter Electrical Test Kit from Klein Tools is designed with reliability and safety in mind. This comprehensive kit comes with MM320 Digital Multimeter, NCVT-3P Non-Contact Voltage Tester with Flashlight, ET45 Voltage Tester, RT210 GFCI Receptacle Tester, a padded storage pouch and all required batteries. All offered in one kit for value and convenience. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857. VERSATILE MEASUREMENTS: Digital Multimeter accurately measures up to 600V AC/DC voltage, 10A DC current, and 2 ohm resistance, offering precise readings for various electrical tasks EXTENSIVE FUNCTIONALITY: In addition to voltage, current, and resistance, the meter tests batteries, diodes, and continuity, providing comprehensive testing capabilities in one device DUAL-RANGE VOLTAGE DETECTION: Voltage Tester NCVT3P detects from 12 to 1000V AC or 70 to 1000V AC, accommodating a wide range of low-voltage and standard voltage applications BUILT-IN FLASHLIGHT: The NCVT3P features a bright flashlight that illuminates the work area, offering convenient visibility and independent use from the voltage detection function ACCURATE AND WIDE-RANGE TESTING: ET45 tests AC voltages from 28V to 240V AC and DC voltages from 32V to 330V, covering commonly used residential voltages for reliable testing CONVENIENT TEST LEAD HOLDER: The ET45 comes with a built-in test lead holder on the back, providing two positions for correctly spacing the leads for testing tamper-resistant outlets or convenient storage WIRING PROBLEM DETECTION: Cat. No. RT210 detects the most common wiring problems in standard and GFCI receptacles including open ground, reverse polarity, open hot, open neutral, and hot/ground reversed, for safe and reliable electrical installations