When you're ready to add a multi-meter to your toolbox this unit is a great place to start. This tester is designed to work on most household appliances and is equipped with an easy-to-read 3.5 inch digital display and three testing functions AC voltage to 500 volt, DC voltage to 600 volt and Resistance to 2 meg Ohms. The 11 position manual ranging smooth rotary style achieves precise readings and the low battery indicator ensures an accurate read-out. Durable housing is drop resistant to 3 feet and crush rated to 150 lbs. Tester is rated CAT III 600 volt and conforms to UL 61010-1 standards and certified to CAN/CSA C22.2.