
The TV7120 and TV7126 Portable Pen Type Vibration Testers are handheld instruments for prompt testing of vibration on workshop machines. They give a quick check of unbalanced and misaligned bearings and gears, the conditions that lead to premature wear and breakdown if left unchecked. Catching rising vibration early guards against mechanical malfunction and the unplanned downtime that follows.
The pen form factor of the TV7120 / TV7126 Portable Pen Type Vibration Tester lets an operator hold the tip to a running machine and read the result directly. The tested value is held on the display for 40 seconds, after which the unit automatically switches off to conserve the battery. Readings for the TV7120 / TV7126 Portable Pen Type Vibration Tester are accurate to within plus or minus 5% plus 2.
The TV7120 / TV7126 Portable Pen Type Vibration Tester measures across three parameters. Acceleration is read as a peak value from 0.1 to 199.9 m/s². Velocity is measured from 0.01 mm/s to 199.9 mm/s as an RMS value, the figure most commonly used to judge overall machine condition. Displacement is read as a peak to peak value from 0.001 to 1.999 mm, which reflects the physical movement at the measured point.
Used in maintenance and condition monitoring across workshops and plant, the TV7120 and TV7126 Portable Pen Type Vibration Testers are supplied by BAMR, South Africa's authorised distributor.
TV7120 / TV7126 Portable Pen Type Vibration Tester
The TV7120 and TV7126 Portable Pen Type Vibration Testers are ideal for prompt testing of vibration on workshop machines, as well as for quick checking of unbalanced and misaligned of bearings and gears. It guards against mechanical malfunction. The tested value is held for 40 seconds after which the unit will automatically switch off.

Also available to buy online at GaugeIt, our online store.
When to use the TV7120 / TV7126 Vibration Tester
Reach for these pen-type vibration testers when you need a prompt spot check of vibration on workshop machines. They quickly flag unbalanced or misaligned bearings and gears so a developing fault can be caught before it becomes a breakdown. The reading is held for 40 seconds, then the unit switches off automatically.
- 1Fast workshop spot checksThey are built for prompt testing on workshop machines, so a technician can walk the floor and check vibration without setting up fixed instrumentation.
- 2Catches imbalance and misalignmentQuick checks of unbalanced and misaligned bearings and gears help you spot a fault early and guard against the mechanical malfunction it would otherwise lead to.
- 3Acceleration, velocity and displacementOne pen-sized tool reads acceleration, velocity and displacement, so you cover the common vibration parameters in a single check rather than carrying separate meters.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
When to use this
When to use the TV7120 / TV7126 Vibration Tester
Reach for these pen-type vibration testers when you need a prompt spot check of vibration on workshop machines. They quickly flag unbalanced or misaligned bearings and gears so a developing fault can be caught before it becomes a breakdown. The reading is held for 40 seconds, then the unit switches off automatically.
- 1Fast workshop spot checksThey are built for prompt testing on workshop machines, so a technician can walk the floor and check vibration without setting up fixed instrumentation.
- 2Catches imbalance and misalignmentQuick checks of unbalanced and misaligned bearings and gears help you spot a fault early and guard against the mechanical malfunction it would otherwise lead to.
- 3Acceleration, velocity and displacementOne pen-sized tool reads acceleration, velocity and displacement, so you cover the common vibration parameters in a single check rather than carrying separate meters.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
Specifications
Specifications
- Acceleration Range
- Peak value from 0.1 to 199.9 m/s²
- Velocity Range
- 0.01 mm/s - 199.9 mm/s (RMS)
- Displacement Range
- Peak to Peak value from 0.001 to 1.999 mm
- Accuracy
- ±5% ±2
| Model | TV7120 | TV7126 |
|---|---|---|
| Parameter | RMS of Vibration Velocity (mm/s) | Velocity, Acceleration, Displacement |
| Testing Range | Velocity: 0.01mm/s - 199.9mm/s (RMS) | Velocity: 0.01mm/s - 199.9mm/s (RMS); Acceleration: 0.01mm/s - 199.9mm/s (RMS); Displacement: 0.001mm - 199.9mm (peak-peak) |
| Frequency Range | Velocity: 10Hz - 1kHz | Velocity: 10Hz - 1kHz; Acceleration: 10Hz - 1kHz; Displacement: 10Hz - 500Hz |
| Accuracy | ±5% ±2 | ±5% ±2 |
| Display | 3½ digits LCD refresh Interval about 0.5 second | 3½ digits LCD |
| Power supply: | 2 x button batteries (LR44 or SR44) | 2 x button batteries (LR44 or SR44) |
| Battery Capacity | Approx. 5 hours working continuously | Approx. 5 hours working continuously |
| Operating temperature: | 0-40 ˚C | 0-40 ˚C |
| Environment Relative Humidity: | <85% | <85% |
| Dimensions: | 150mm x 22mm x 18mm | 150mm x 22mm x 18mm |
| Weight: | 55g (include 2 batteries) | 55g (include 2 batteries) |
Packing List
Packing List
Frequently asked questions
What is the difference between the TV7120 and the TV7126?
The TV7120 measures only RMS vibration velocity (0.1 to 199.9 mm/s). The TV7126 adds acceleration (0.1 to 199.9 m/s2, peak) and displacement (0.01 to 1.999 mm, peak-to-peak), making it the more complete instrument for bearing and gear diagnostics.
What applications are the TV7120 and TV7126 suited for?
Both models are designed for prompt vibration testing on workshop machines and for quick checking of unbalanced and misaligned bearings and gears. They are intended to detect potential mechanical malfunction before it causes failure.
What frequency range do the pen-type vibration testers cover?
Velocity measurements cover 10 Hz to 1 kHz on both models. The TV7126 additionally covers acceleration up to 1 kHz and displacement up to 500 Hz.
How long does a reading remain displayed and how is the unit powered?
The tested value is held on the display for 40 seconds, after which the unit switches off automatically. Both models run on two LR44 or SR44 button batteries providing approximately 4.5 hours of continuous operation. Weight is 55 g including batteries.
Quote on the TV7120 / TV7126 Portable Pen Type Vibration Tester by close of business.
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Tell us about your application and we will send a quote with lead time and accessories.

