Benetech GM100 vs GM100+ vs GM130 vs GT1201 vs GT1202 Ultrasonic Thickness Gauge Malaysia
Which Benetech Ultrasonic Thickness Gauge Should You Choose?
Choosing an ultrasonic thickness gauge starts with the material, expected thickness, surface condition and measurement access.
The Benetech GM100, GM100+, GM130, GT1201 and GT1202 offer different combinations of measurement range, probe options, alarms and data handling.
For maintenance and inspection teams in Malaysia, the most useful model is the one that matches both the measurement task and the reporting requirements.
Five-Model Comparison
The supplied catalogue lists the following specifications:
ModelMeasurement range in steelProbe configurationMain selection reasonGM1001.2–225.0 mm5 MHz, Ø10 mm probeBasic thickness checks within its rangeGM100+1.20–300.00 mm5 MHz, Ø10 mm probeWider listed range than GM100GM1301.00–300.00 mm5 MHz, Ø6 mm and Ø10 mm probes listedSmaller probe option, thickness limit alarms and mm/in conversionGT12011.00–300.0 mmMultiple probe types supported; 5MΦ10 supplied as standardData storage, PC communication and audible thickness limit alarmGT12021.00–300.0 mmMultiple probe types supported; 5MΦ10 supplied as standardData storage, PC communication and spoken measurement values
The stated ranges are for steel. Do not assume identical performance on other materials or with every probe.
GM100 vs GM100+: Mainly a Range Decision
Both GM100 and GM100+ list a 5 MHz operating frequency, a Ø10 mm probe, adjustable sound velocity, stored thickness and sound velocity values, coupling indication and backlighting.
The main specification difference is the steel measurement range:
GM100: 1.2–225.0 mm.
GM100+: 1.20–300.00 mm.
Choose according to the expected thickness of the component. A wider range does not, by itself, establish better accuracy.
Both models use three 1.5V AAA batteries, according to the catalogue.
GM130: Smaller Probe Option and Additional Controls
The GM130 lists both Ø6 mm and Ø10 mm probes, giving buyers another option when measurement space is limited.
Its catalogue-listed minimum pipe dimensions are:
Ø15 × 2.0 mm with the Ø6 mm transducer.
Ø20 × 3.0 mm with the Ø10 mm transducer.
GM100 and GM100+ list Ø20 × 3 mm in steel.
These limits should be checked against the actual pipe diameter, wall thickness and surface condition. A smaller probe does not guarantee a reliable reading on every curved surface.
GM130 also adds upper and lower thickness alarm settings, metric/imperial unit conversion and measurement mode selection. It uses three 1.5V AAA batteries.
GT1201 and GT1202: More Data Handling
Both GT1201 and GT1202 provide a colour display with menu operation, USB charging and PC communication.
The catalogue lists storage for 1,500 readings, organised into up to 15 groups of 100 readings. Both support manual and automatic storage, viewing and deleting data, and displaying average, maximum and minimum values.
These functions are useful when measurements need to be retained for inspection records rather than read only at the measurement point.
Both models use a 1000 mAh, 3.7V lithium battery, with 5V, 1A USB charging listed.
GT1201 vs GT1202: Alarm or Voice Readout?
The catalogue identifies two practical differences:
FunctionGT1201GT1202Audible alarm beyond upper/lower thickness limitsYesNoSpoken announcement of measured valuesNoYesRed display for out-of-limit valuesYesYesData storage and PC communicationYesYes
Choose GT1201 when an audible thickness limit alarm is important.
Consider GT1202 when spoken measurement values would help the inspection workflow. Voice readout is a separate function from an audible out-of-limit alarm.
Confirm the Probe Package Before Ordering
GT1201 and GT1202 support the catalogue-listed 5MΦ10, 5MΦ6, 2.5 MHz and high-temperature probe options.
However, the catalogue states that only the 5MΦ10 probe comes as standard. Additional probe support does not mean every probe is included.
For a high-temperature application, confirm the optional probe’s permitted temperature, compatible couplant and operating procedure before ordering.
Material Sound Velocity Matters
All five models list an adjustable sound velocity range of 1000–9999 m/s.
An ultrasonic thickness reading depends on the selected sound velocity. Using a setting that does not match the material can produce an incorrect thickness result.
Before inspection, check the instrument using a suitable reference and follow the operating manual. Built-in calibration functions do not establish that an external calibration certificate is included.
Practical Selection for Pipes, Plates and Maintenance Work
For buyers in Selangor, Kuala Lumpur, Johor and Penang, use the following starting points:
GM100: basic checks where its 225 mm steel range is sufficient.
GM100+: similar core functions with a listed range extending to 300 mm.
GM130: smaller probe access, thickness limit settings and mm/in selection.
GT1201: stored inspection readings with an audible limit alarm.
GT1202: stored inspection readings with spoken measurement values.
If the surface is painted or coated, confirm the measurement method before purchase. The supplied catalogue does not establish through-coating capability, so do not assume it can isolate the underlying metal thickness without surface preparation.
Benetech Ultrasonic Thickness Gauge Enquiries in Malaysia
Contact MTM Precision Sdn Bhd with the material, expected thickness range, pipe diameter where applicable, surface condition and required reporting functions.
A clear photo of the measurement area can help us review the suitable model and probe configuration before quotation.
MTM Precision Sdn Bhd
Showroom & Service Centre: No. 29-1 & 29-2, Jalan Bandar 18, Pusat Bandar Puchong, 47160 Puchong, Selangor, Malaysia
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
09 Oct 2026
