Reed R5055-NIST 1000A True RMS Digital Clamp Meter




Reed R5055-NIST 1000A True RMS Digital Clamp Meter

Reed R5055-NIST Datasheet (PDF)

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-NIST

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


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

Additional information

Weight 2 lbs
Dimensions 10 × 7 × 8 in

You may also like…