**-UT204 is able to measure DC current and also True RMS
**-Clamp multimeter UT204 measures reliably even in real conditions of nowadays mains supplies and for an affordable price moreover.
UT204 from company UNI-Trend is a near relative to the
UT203. multimeter. Already UT203 provides a lot of user
comfort and a very pleasant feature - measuring of a DC current without
interrupting a measured circuit. However UT204 is different from its “weaker”
brother in one essential thing - it enable measuring of a true RMS value of
alternating signals (TRMS).
As we know, usual multimeters usually deploy a simple rectifier and an RC cell
and they´re calibrated to show an effective value of AC voltage - supposing an
ideally sinusoidal shape of a measured variable.
In many cases, a non-TRMS multimeter is fully sufficient, but still more
frequently we meet devices, which by their power consumption significantly
deform originally sinusoidal shape of a mains line voltage. A vast majority of
new devices is equipped with switch-mode power supplies deforming a sinusoid, as
they draw current for charging of input capacitors mainly on a top of a
sinusoid. This situation is partially better at power supplies with a power
factor correction (PFC), but even in these cases it´s never an ideal load. At
any difference from an ideal sinusoid the accuracy of a common meter
significantly drops down and the error can exceed tens of percents. Similar
situation is also at various DC/AC inverters (for example 12VDC/230VAC), whose
output is usually only an approximated sinus.
That´s why if exact measurement matters to us, it´s more certain to measure by a
device equipped by a TRMS measurement. There are many types with this function
on the market, and in a segment of clamp multimeters it´s for example the above
mentioned UT204, which moreover offers a lot of other functionality for an
Detailed information and comparison of UT203/ UT204 will provide you the UT204
datasheet and the
UT204 datasheet and
UT203-204 user guide. We keep Uni Trend UT204 as a
standard - immediately available item.
In case of interest, please contact us at
- modern clamp multimeter with a TRMS measurement
- with automatic range selection, 3999 max display reading
- also measures DC current
- measures U, I, Ohm, D, f
- diode and continuity test
- Data Hold and Rel function
- robust and ergonomic construction
- max jaw opening of 28 mm
- power supply 9V battery 6F22 (included)