21/02/2026

True RMS digital multimeter with the added functionality of an insulation tester and earth continuity tester combined into a single handheld unit.
Art.-No. 911-00021 | TBM878-MET/PL-BK/RD

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  • Insulation resistance 50, 100, 250, 500, 1000V
  • 3 -5/6 Digits 6000 Counts
  • Earth bond resistance
  • VFD AC Voltage
  • Relative zero
  • Backlit
  • Bar-graph
  • Beep guard
  • Diode
  • Auto Range
Application CoC Testing, Installation Commissioning, Cable Testing, Appliance Testing, Industrial Automation, Quality Control, Specification Testing, Troubleshooting, Preventative Maintenance
Colour Black (BK), Red (RD)
Content Accessories Industrial test probe
Description DMM Insulation Combination
Digits in display 3
Material Metal (MET), Plastic (PL)
PART DESCRIPTION TBM878-MET/PL-BK/RD
Package Content packed in box
Part No. TBM878
Power Supply 4 x 1.5V AA Batteries
Product Family TBM878
Product Group Insulation/Combination Digital Multimeter
Type TBM878
AC Current (+Accuracy) 60mA, 400mA (1.5% + 3 Digit)
AC Voltage (+Accuracy) 60mV, 600mV, 6, 600, 1000V (2.0% + 3 Digit)
Capacitance (+Accuracy) 3μ, 30μ, 300μ, 3000μF, 30mF (10% + 5 Digit)
DC Current (+Accuracy) 60mA, 400mA (0.4% + 3 Digit)
DC Voltage (+Accuracy) 60mV, 600mV, 6, 600, 1000V (0.09% + 3 Digit)
Frequency (+Accuracy) 10Hz - 5KHz (0.02% + 4 Digit)
Height (H) 64mm
Length (L) 208mm
Resistance (+Accuracy) 600, 6k, 60k, 600k, 6M, 60MΩ (1.5% + 3 Digit)
Temperature Measuring Range (+Accuracy) -50ºC to 1000ºC (9% + 2.0ºC)
Width (W) 103mm
Feature
[AC Current (A)]
Parameter
[60 mA/ 600 mA]
Accuracy
[±1.5 % + 3 Digit(s)]
Feature
[AC Voltage (V)]
Parameter
[60 mV/ 600 mV/ 6/ 600/ 1000 V]
Accuracy
[±2.0 % + 3 Digit(s)]
Feature
[Capacitance (F)]
Parameter
[3µF/ 30µF/ 300µF/ 3000µF/ 30mF]
Accuracy
[±1.5 % + 5 Digit(s)]
Feature
[DC Current (A)]
Parameter
[60 mA/ 600 mA]
Accuracy
[±0.4 % + 3 Digit(s)]
Feature
[DC Voltage (V)]
Parameter
[60 mV/ 600 mV/ 6/ 600/ 1000 V]
Accuracy
[±0.09 % + 3 Digit(s)]
Feature
[Display]
Parameter
[3 Digit(s)]
Accuracy
[6000 Counts]
Feature
[Frequency (Hz)]
Parameter
[10 Hz/ 5 kHz]
Accuracy
[±0.02 % + 4 Digit(s)]
Feature
[Resistance (Ω)]
Parameter
[600/ 6 kΩ/ 60 kΩ/ 600 kΩ/ 6 MΩ/ 60 MΩ]
Accuracy
[±1.5 % + 3 Digit(s)]
Feature Parameter Accuracy
AC Current (A)
60 mA/ 600 mA
±1.5 % + 3 Digit(s)
AC Voltage (V)
60 mV/ 600 mV/ 6/ 600/ 1000 V
±2.0 % + 3 Digit(s)
Capacitance (F)
3µF/ 30µF/ 300µF/ 3000µF/ 30mF
±1.5 % + 5 Digit(s)
DC Current (A)
60 mA/ 600 mA
±0.4 % + 3 Digit(s)
DC Voltage (V)
60 mV/ 600 mV/ 6/ 600/ 1000 V
±0.09 % + 3 Digit(s)
Display
3 Digit(s)
6000 Counts
Frequency (Hz)
10 Hz/ 5 kHz
±0.02 % + 4 Digit(s)
Resistance (Ω)
600/ 6 kΩ/ 60 kΩ/ 600 kΩ/ 6 MΩ/ 60 MΩ
±1.5 % + 3 Digit(s)
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