REED R5055 1000A True RMS Digital Clamp Meter


AC/DC Clamp Meter with analog bargraph, backlight, min/max function, built-in non-contact voltage (NCV) detector and contact thermometer.

REED R5055 Offers

This auto ranging True RMS clamp meter is capable of measuring AC/DC current and voltage, resistance, frequency, capacitance, duty cycle, contact temperature and up to 3000A AC with optional 18" flexible current probe (R5065). Featuring a 6000 count backlit LCD display with a 31-segment analog bargraph and double molded plastic housing. The R5055 keeps track of min/max readings and includes low pass filter and Low impedance (LoZ) mode.


  • Measures AC/DC current/voltage, resistance, capacitance, frequency, duty cycle, and contact temperature
  • 6000-count backlit LCD display and analog bargraph
  • Flexible current probe can expand AC current measurements up to 3000A; (R5065, sold separately)
  • Ergonomic design fits in your hand and can be used while wearing protective gloves
  • Built-in LED flashlight
  • Low battery and over range indicators
  • Built-in non-contact voltage detector with LED indicator
  • True RMS voltage and current for accurate measurements
  • Low Pass Filter and Low Impedance (LoZ) modes
  • Min/Max, display hold and relative mode
  • Diode test and continuity check functions
  • Durable double molded plastic housing
  • Cat. III 1000V, Cat. IV 600V safety rating

REED R5055 Specifications

AC/DC Current

Range 60, 600, 1000A

Accuracy AC/DC: ±(2% rdg. +5 dgt.)

Resolution 0.01, 0.1, 1A

AC/DC Voltage

Range AC: 6, 60, 600, 1000V

DC: 600mV, 6, 60, 600, 1000V

Accuracy AC: ±(1.0% rdg. +8 dgt.)

DC: ±(0.5% rdg. +5 dgt.)

Resolution 0.1mV, 0.001V, 0.01V, 0.1V, 1V


Range 600Ω, 6, 60, 600kΩ, 6, 60MΩ

Accuracy ±(1% rdg. +2 dgt.)

Resolution 0.1Ω, 0.001kΩ, 0.01kΩ, 0.1kΩ, 0.001MΩ, 0.01MΩ


Range 60, 600.0nF, 6, 60, 600μF, 6, 60mF

Accuracy ±(4.0% + 5)

Resolution 0.01nF, 0.1nF, 0.001μF, 0.01μF, 0.1μF, 0.001mF, 0.01mF


Range 10Hz, 1MHz

Accuracy ±(0.1% rdg. +3 dgt.)

Resolution 0.01Hz, 1kHz

Low Pass Filter (LPF) AC Voltage

Range 600, 1000V

Accuracy ±(2% rdg. +5 dgt.)

Resolution 0.1, 1V

Low Impedance (LoZ) AC Voltage

Range 600, 1000V

Accuracy ±(2% rdg. +5 dgt.)

Resolution 0.1, 1V


Range -40 to 1832°F (-40 to 1000°C)

Accuracy ±(1.0% rdg. + 4°F)

±(1.0% rdg. + 2°C)

Resolution 1°F, 1°C

General Specifications

Range Selection Autoranging/Manual

Low Impedance (LoZ) Yes

Low Pass Filter (LPF) Yes

True RMS Yes

Display 6000 count LCD display

Display Hold Yes

Max/Min Yes

Peak Hold N/A

Zero Push Button Adjustment Yes

Relative Mode Yes

Diode Test Yes

Backlit Display Yes

Analog Bargraph Yes (31-segment)

Continuity Check Audible signal if resistance ≤30Ω

Duty Cycle Yes

Non-Contact Voltage Detector Yes

Built-In Flashlight Yes

Kick Stand N/A

Autoshut Off Yes (after 15 mins)

Flexible Current Probe (optional) Yes (R5065, Extends to 3000A)

Power Supply 3 x AAA batteries

Low Battery Indicator Yes

Jaw Opening 1.7" (42mm), up to 1500 MCM

Overvoltage Category CAT. III 1000V, CAT. IV 600V

Product Certifications CE, ETL

Operating Temperature 32 to 122°F (0 to 50°C)

Storage Temperature 14 to 140°F (-10 to 60°C)

Dimensions 10.7 x 3.2 x 1.7" (272 x 81 x 43.5mm)

Weight 15.8oz (447g)

What's included with the REED R5055

  • AC/DC True RMS Clamp Meter
  • Type K Thermocouple
  • Test Leads
  • Carrying Case
  • Batteries

Ideal Applications for the REED R5055

  • Industrial maintenance teams performing scheduled and preventative maintenance on electro-mechanical equipment and systems
  • Facilities, building maintenance and electricians looking to troubleshoot electrical equipment installation problems