The Triplett MM870 Precision Multimeter is a professional-grade True RMS digital multimeter engineered for electricians, HVAC technicians, industrial maintenance personnel, field service technicians, and advanced DIY users who require fast, accurate, and reliable electrical measurements. Designed for demanding commercial, industrial, and residential applications, the MM870 delivers advanced functionality and rugged durability for troubleshooting modern electrical and electronic systems.

Featuring a high-visibility 6000/60,000 count backlit LCD display with bargraph, the Triplett MM870 measures AC/DC voltage and current, microamp current, resistance, capacitance, frequency, duty cycle, and temperature with exceptional precision. Advanced functions including Low Pass Filter (LPF), Peak Hold, Min/Max/Average recording, AutoHold, and Relative mode make it ideal for testing variable frequency drives, noisy electrical environments, and sensitive electronic equipment. Built to withstand harsh jobsite conditions, the MM870 is IP67 waterproof, drop tested to 6.5 feet, and CAT IV 600V safety rated.

• Highly accurate, fast-responding True RMS digital multimeter
• Measures AC/DC voltage and current
• Measures µA current, resistance, capacitance, frequency, duty cycle, and temperature
• True RMS technology provides accurate readings on non-sinusoidal and noisy waveforms
• 6000/60,000 count backlit LCD display with analog-style bargraph
• Low Pass Filter (LPF) filters harmonic and frequency interference when testing variable frequency drives
• Peak Hold (>1ms) captures transient voltage and current spikes
• Min/Max/Average recording functions
• Data Hold freezes measurements on the display
• AutoHold updates the display when a new stable reading is detected
• Relative mode compares measurements to a stored reference value
• Waterproof IP67-rated construction
• Drop proof up to 6.5 feet (2 meters)
• Auto power-off with disable function
• Low battery indicator
• Ideal for electrical troubleshooting, HVAC diagnostics, industrial maintenance, and electronic testing
• CAT IV 600V safety rated

• Manufacturer: Triplett
• Model: MM870
• UPC: 614395005016
• Product Type: Precision Digital Multimeter
• Display Type: Backlit 6000/60,000 Count LCD with Bargraph
• Measurement Functions: AC/DC Voltage, AC/DC Current, µA Current, Resistance, Capacitance, Frequency, Duty Cycle, Temperature
• True RMS: Yes
• Additional Functions: LPF, Peak Hold, Min/Max/Average, Data Hold, AutoHold, Relative Mode
• Ingress Protection Rating: IP67 Waterproof
• Drop Protection: 6.5ft (2m)
• Safety Rating: CAT IV 600V
• Power Source: (4) AAA Batteries
• Country of Origin: China
• ECCN: EAR99
• HTS Code: 9030.33.3800
• Shipping Weight: 1.5 lbs.
• Dimensions: 8" L x 5" W x 3" H
• Package Type: Box
• Includes: Test leads, Type K temperature probe, and (4) AAA batteries
• Warranty: 3 Years