The 300 Series of Digital MultiMeters from Extech Instruments features built-in Voltage Detection. Featuring a non-contact voltage detector, combined with a digital multimeter, the user can check for voltage prior to attaching the multimeter’s test leads to the device. Extech’s 300 Series includes three models: the EX310, EX320 and EX330, all with built-in voltage detection. The EX330 has a 4000 count display and includes measurements for temperature, capacitance, frequency and duty Cycle. All models measure DC/AC Voltage with a 0.5 percent basic accuracy, along with DC/AC current and resistance. Each will perform Diode Test, has an audible beeper for continuity test, and includes a low battery indicator, auto power off function, and data hold to “freeze” a reading on the display. The EX320 is auto-ranging, the EX310 is manual-ranging, and each has a 2000 count display.

Extech Instruments
781-890-7440, www.extech.com