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The ECM INDUSTRIES LLC GDT-3200 is a general-purpose auto-ranging digital multimeter designed for field diagnostics in HVAC, electrical, and plumbing service applications. It measures up to 500 VAC and 600 VDC, and also tests resistance and amperage, making it a capable single-tool option for common service calls. A protective rubber boot surrounds the meter body, absorbing impact if the unit is dropped and doubling as a lead-storage solution when the meter is not in use. The GDT-3200 ships ready to use, with test leads, an instruction manual, and a battery included in the package. CULUS approval confirms it has been tested to recognized safety standards.
This multimeter suits residential and light commercial service work where a technician needs quick, reliable voltage, resistance, and current readings without manual range selection. The auto-ranging function reduces setup time on busy service calls. It is appropriate for licensed electricians, HVAC technicians, and plumbers who need a rugged, portable meter for routine diagnostics, continuity checks, and circuit verification at the service point.
Designed as a general-purpose replacement or additional-unit multimeter for trade professionals requiring auto-ranging voltage, resistance, and amperage measurement up to 500 VAC and 600 VDC.
Installation is performed by licensed electricians, HVAC technicians, or qualified service professionals. Always de-energize and lock out the circuit under test before connecting or disconnecting leads where required by NFPA 70E safe work practices. Verify the meter's voltage rating is appropriate for the circuit before taking measurements. Do not exceed the stated maximum input ratings of 500 VAC or 600 VDC.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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