The M20 has features you need for testing residential electrical and HVAC/R systems. With its four AC and four DC voltage scales you can measure typical control and source voltages with high resolution. It also includes a low-ohm scale to test critical connections and a milliamps function to verify many flame safeguard circuits.

Features
• 12 ranges
• 500 Volts AC and DC
• DC milliamps
• Fused ohm circuit
• Resistance to 50 kilohms
• Color-coded and mirrored scale plate
• Three year limited warranty