The Testo 760-3 is the top model in the Testo 760 digital multimeter range, designed for HVAC-R technicians, electricians and service professionals who need reliable electrical measurement on larger systems and industrial equipment. With automatic measurement parameter detection, the 760-3 helps reduce incorrect settings by recognising the test lead connection and selecting the correct measurement function.
Built for demanding electrical diagnostics, the Testo 760-3 includes True RMS measurement, 1,000V AC/DC range, low-pass filter, duty cycle, temperature measurement and large measuring ranges for frequency and capacitance. It is a strong choice for fault finding on air conditioning, refrigeration, heating, electrical panels, controls and industrial systems.
Key Features
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Professional TRMS digital multimeter
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Automatic measurement parameter detection
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Helps prevent incorrect function selection
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Measures AC/DC voltage up to 1,000V
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True RMS measurement for accurate readings on non-linear loads
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Low-pass filter for variable speed drives and inverter-driven equipment
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Duty cycle measurement
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Type K temperature measurement with optional adapter/probe
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Large frequency and capacitance measuring ranges
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Function keys replace the traditional rotary dial
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Suitable for HVAC-R, electrical and industrial diagnostics
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Optional clamp probe adapter allows current measurement up to 400A
Specifications
| Item | Specification |
|---|
| Brand | Testo |
| Model | Testo 760-3 |
| Product Number | 0590 7603 |
| Product Type | TRMS Digital Multimeter |
| Voltage Range | Up to 1,000V AC/DC |
| Measurement Type | True RMS |
| Functions | Voltage, current, resistance, frequency, capacitance, duty cycle, temperature |
| Temperature Measurement | Type K with optional adapter/probe |
| Low-Pass Filter | Yes |
| Auto Measurement Detection | Yes |
| Optional Current Measurement | Up to 400A with clamp probe adapter |
| Operation | Function keys, no traditional dial |
| Application | HVAC-R, electrical, industrial and service diagnostics |
Kit Includes
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1 × Testo 760-3 digital multimeter
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1 × Set of test leads
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3 × AAA batteries
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Instruction manual
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Quick start guide
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Certificate of conformity
Applications
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HVAC-R electrical diagnostics
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Air conditioning and refrigeration fault finding
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Heating system electrical checks
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Control circuit testing
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Electrical panel maintenance
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Voltage, resistance, capacitance and frequency checks
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Inverter and variable speed drive troubleshooting
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Temperature measurement with compatible Type K accessories
The Testo 760-3 — 0590 7603 gives technicians a high-performance multimeter for serious electrical diagnostics. With automatic function recognition, TRMS accuracy, 1,000V range and advanced features such as low-pass filter and duty cycle, it is a strong professional option for HVAC-R and industrial service work.