Multifunction DMMs
Staff -- Test & Measurement World, 10/1/2005
All three models in the 300 series of digital multimeters are equipped with built-in noncontact AC voltage detection to enable you to check for voltage prior to attaching the meter's test leads to the device under test. Each unit measures DC/AC voltage to within 0.5% basic accuracy, along with DC/AC current and resistance. Additionally, the EX310, EX320, and EX330 perform diode testing, have an audible beeper for continuity testing, and include a low-battery indicator. The auto-ranging EX330 features a 4000-count display and measures temperature, capacitance, frequency, and duty cycle. The auto-ranging EX320 and manual-ranging EX310 have 2000-count displays.
Extech Instruments, www.extech.com.
