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The AMPROBE DM78C is an average responding digital multimeter designed for voltage and resistance measurements in electrical and HVAC service work. It delivers a 3,200 display count readout with a maximum AC and DC voltage range of 600 volts, making it suitable for most residential and light commercial electrical circuits. The DM78C also handles resistance measurements up to 32 megohms and includes continuity and diode test functions. Built to IEC 61010 standards with CAT II and CAT 0 safety ratings, it arrives ready to use with test leads and a protective case included in the package.
The DM78C suits licensed electricians, HVAC technicians, and plumbers who need a reliable general-purpose meter for field diagnostics. Common applications include verifying line voltage, checking transformer output, testing circuit continuity, and measuring component resistance during troubleshooting. Its compact form factor fits easily in a tool bag, making it practical for service calls where a full bench meter is not needed. The included test leads and case mean it is ready to deploy straight out of the box.
Designed as a general-purpose digital multimeter suitable for electrical, HVAC, and plumbing service applications operating at voltages up to 600 VAC or VDC in CAT II environments.
This meter is intended for use by qualified trade professionals familiar with electrical safety practices. Always verify the circuit voltage category does not exceed the CAT II rating before taking measurements. De-energize and lock out circuits whenever possible before connecting test leads, and inspect leads for damage prior to each use. Follow applicable NEC and local electrical code requirements for safe metering practice.
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