Specifications

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3
Before You Start
Overview
This Operating Manual covers information on safety and cautions. Please read the relevant information
carefully and observe all the Warnings and Notes strictly.
Warning
To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe
Operation” carefully before using the Meter.
Scope Digital Multimeter UT81B (hereafter referred to as “the Meter”) is a 3999 counts and 3 3/4 digits
adopting digital control techique with both waveform and multimeter all in one.
Scope mode is a complete intelligent measurement system including signal input, sampling, data
process, auto search and waveform save and recall. It has bandwidth 8MHz, real-time sample rate
40MS/s with peak rate sampling process can catch up pulse industrial signal. It can measure AC/DC
engine, transducer, circuit, control, UPS and industrial equipments. It is an ideal tools in professional
repairing industries.
Digital Multimeter mode can measure AC voltage and current, DC voltage and current, Resistance,
Capacitance, Frequency, Duty Cycle, Diodes and Continuity.
Unpacking Inspection
Open the package case and take out the Meter. Check the items shown on Table 1-1 carefully to see any
missing or damaged part:
Table 1-1. Unpacking Inspection
Item Description Qty
1 English Operating Manual 1
piece
2 USB interface cable 1
piece
3 CD-ROM (Installation Guide & Computer
Interface Software)
1
piece
4 Test Lead 1 pair
5 Alligator Clip 1
piece
6 Power Adaptor 1
piece
7 1.5V Batteries (R6) 4
pieces
8 Scope Probe (available at extra cost) 1
piece
9 BNC probe (available at extra cost) 1
piece
In the event you find any missing or damage, please contact your dealer immediately.