Electrical Testing

Amprobe AM-520 HVAC Multimeter

Amprobe

6.0 - Good

HVAC-focused digital multimeter with 4000uF capacitance range for motor startup capacitor testing and diagnostics.

Amprobe AMB-45 Insulation Resistance Tester

Amprobe

5.8 - Good

Digital megohmmeter with 250/500/1000V test voltages, 4000 MOhm range, PC data logging, and programmable timer for HVAC motor insulation diagnostics.

Amprobe AMP-320 Motor Maintenance Clamp Meter

Amprobe

5.9 - Good

600A AC/DC True RMS clamp meter with motor rotation testing, inrush current, DC amps, and VFD low-pass filter for advanced HVAC motor troubleshooting.

Extech MA445 True RMS AC/DC Clamp Meter

Extech

5.9 - Good

400A True RMS AC/DC clamp meter with 11 functions including capacitance, Type K temperature, NCV detector, and inrush current for HVAC field work.

Fieldpiece LT17A Digital Multimeter

Fieldpiece Instruments

6.3 - Good

HVAC digital multimeter with capacitance up to 200 MFD, temperature to 1400°F, and modular accessory head compatibility for field diagnostics.

Fieldpiece SC260 Compact Clamp Meter

Fieldpiece Instruments

6.4 - Good

Compact 400A True RMS clamp meter with capacitance testing for motor start/run capacitors, temperature, and backlit display for HVAC service.

Fieldpiece SC480 Wireless Power Clamp Meter

Fieldpiece Instruments

7.0 - Excellent

Wireless TRMS power clamp meter with capacitance testing up to 10mF and Job Link app integration for HVAC/R diagnostics.

Fieldpiece SC640 Loaded Clamp Meter

Fieldpiece Instruments

7.4 - Excellent

Most feature-rich HVAC clamp meter: swivel head, jaw flashlight, dual display, True RMS, inrush current, microamps DC, capacitance. Accepts accessory heads.

Fieldpiece SC680 Wireless Swivel Head Clamp Meter

Fieldpiece Instruments

7.1 - Excellent

Top-tier 600A wireless clamp meter with swivel head, DC amps for inverter systems, dual Type K ports, and Job Link app for HVAC documentation.

Fluke 1503 Insulation Resistance Tester

Fluke

6.3 - Good

Compact insulation tester with 500/1000V test voltages, 2000 MOhm range, live circuit detection, and CAT IV 600V safety for HVAC electrical maintenance.

Fluke 1587 FC Insulation Multimeter

Fluke

7.2 - Excellent

Full multimeter combined with up to 1000V insulation tester and Fluke Connect wireless. Essential for diagnosing compressor windings and motor insulation.

Fluke 902 FC True-RMS HVAC Clamp Meter

Fluke

7.2 - Excellent

Wireless Fluke Connect Bluetooth for remote reading and logging; 200 uA DC for flame sensor measurement; CAT IV 300V / CAT III 600V rated.

5-range high-speed insulation tester (50-1000V) with 0.3-second response, Bluetooth wireless data transfer, and 1-meter drop-proof construction.

Ideal 61-747 TightSight AC/DC Clamp Meter

Ideal Industries

5.8 - Good

400A AC/DC True RMS clamp meter with patented bottom-reading TightSight display, built-in flashlight, and temperature for safe panel work.

Klein Tools CL320 HVAC Digital Clamp Meter

Klein Tools

6.1 - Good

Budget-friendly HVAC clamp meter with capacitance testing, temperature measurement, and TRMS accuracy for field diagnostics.

Klein Tools ET600 Insulation Resistance Tester

Klein Tools

6.1 - Good

Multi-function megohmmeter with 125/250/500/1000V test voltages, 4000 MOhm range, True RMS multimeter functions, and built-in stand for hands-free testing.

Megger MIT400/2 CAT IV Insulation Tester

Megger

6.5 - Good

CAT IV 600V insulation tester with 250/500/1000V test voltages, 200 GΩ range, variable voltage in 10V steps, and IP54 weatherproof rating for HVAC fieldwork.

Supco M500 Megohmmeter

Supco Inc.

5.8 - Good

Affordable 500V megohmmeter measuring up to 1000 MOhm, designed specifically for testing HVAC compressor winding insulation and motor diagnostics.

UEi DL489 True RMS Clamp Meter

UEi Test Instruments

6.0 - Good

True RMS 600A clamp meter with 2000uF capacitance testing, inrush current, and temperature measurement for HVAC technicians.