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Ultrasonic Thickness Gauge / UM-1

Ultrasonic Thickness Gauge
  • It is used to non-destructively measure thickness of any hard materials. Resolution is 0.1mm. Measurement range is 0.8mm-300mm.

UM-1 ultrasonic thickness gauge

Standard package:

UM-1 thickness gauge

Standard probe (PT-08)

Carrying case

Two 1.5V AA alkaline batteries


Operating manual

Certification of quality

Packaging list

Operating principle:

Ultrasonic pulse/echo method with dual-element probes

Probe zero adjustment:

Selectable: 1-point calibration: normal measurement

2-point calibration: curve surface measurement or other special application with a high precision

V-path correction:


Measuring range:

0.8mm to 300mm ; 0.031in to 11.81in

Depending on probe, material and surface condition

Digital resolution:

0.001in or 0.1mm


Selectable: inch or mm


128×64 dot-matrix LCD screen ( 1.65in × 2.24in ; 42mm × 57mm )

EL backlight and switchable contract ratio

Digit height: 0.54in or 13.75mm

Measurement update rate:

4 Hz in standard measurement mode

25 Hz in MIN capture mode

Material velocity range:

1000 to 9999 m /s; 0.039 to 0.394 inch/ µ s


Two 1.5V AA alkaline batteries

Warning with low battery voltage

Operating time:

Up to 200 hours (without backlight) with alkaline batteries, depending on operating mode

Auto shut-off:

After 5 minutes of non-use

Operating temperature:

-10℃ to + 50℃ ; + 14℉ to + 122℉

Specification to -20℃ / -4℉ on request


5.86in × 2.87in × 1.25in ; 149mm × 73mm × 32mm (H×W×D)


200g ; 7oz (including batteries)

Data logger capacity:

Up to 500 readings can be divided into a maximum of 5 files (user-selectable)

Optional accessories:

Attachable rubber case

Numerous special probes on request

Couplants and high-temperature couplant

4-step/6-step block for calibration

Data transmission cable

Application software

Operating language:

English and Chinese

Measuring error:

Up to 1in : ± 0.002in or ±0.1mm

Above 1in : ± 1%H

H is the height of the testing object


± 0.001in or ± 0.1mm

Application software:



Serial RS 232C port in combination with a communicative cable;

Data transfer parameters: 8 bits, 1 stop bit, 9600 baud, no parity.