TT Series
The TT Digital Torque Tool Tester is a simple operation test instrument for quickly checking torque tool performance. The TT Series provides exceptional accuracy for measuring torque on various products including torque wrenches, manual screwdrivers, electric screwdrivers, pneumatic screwdrivers and other torque controlled power tools.

The TT's provide long operation life and power flexibility with the ability to work from the internal rechargeable battery or included AC adapter. The TT's have four modes of operation: Track for live readings, Peak which records the highest level over a test, First Peak which records the first peak reading over the test and Track/Peak which shows both the live readings as well as the peak reading recorded.

The backlit display provides an analog bar graph on screen to allow the user to know where the resultant torque is currently positioned compared to the full scale range of the unit. CW/CCW icons along with programmable pass/fail LED’s ( HI/OK/LO) assist users with ensuring proper test set up along with enabling a quick determination of the results.

Every tester comes standard with USB and RS-232 output. The TT's software enables the uploading of data and the additional statistical analysis with its auto-calculation of the selected values.

These excellent features make the TT Torque Tool Testers a valuable and versatile addition to the production and quality control departments.
  • Included Run Down Adapter for power tool testing
  • Strong, light-weight, compact aluminum enclosure allows portability and usage in any shop environment
  • Flexible four modes of operation: Track, Peak, First Peak & Track/Peak
  • High-resolution, backlit graphical display with analog bar graph and CW/CCW direction indication provides fast graphical interpretation of tool response
  • Pass-Fail LED light indicators enable quick determination of tool performance acceptance
  • Units come standard with USB or RS232 communication output for data upload
  • 500 memory record storage plus software provides easy data transfer
  • 0.5% accuracy of full scale range provides sufficient standard for checking tools
  • May be operated using the rechargeable battery or with the AC adapter
  • Calibration certificate with data guarantees performance upon purchase
Torque Ranges
TT-0.5500 (0.1)50 (0.01)0.5 (0.0001)5.099 (0.001)0.0509 (0.0001)4.425 (0.001)0.3687 (0.0001)
TT-11000 (0.2)100 (0.02)1 (0.0002)10.2 (0.002)0.1020 (0.0001)8.850 (0.002)0.7375 (0.0002)
TT-55000 (1)500 (0.1)5 (0.001)50.99 (0.01)0.5099 (0.0001)44.25 (0.01)3.687 (0.001)
TT-1010000 (2)1000 (0.02)10 (0.002)102 (0.02)1.02 (0.0002)88.50 (0.02)7.375 (0.002)
TT-2525000 (5)2500 (0.5)25 (0.002)254.9 (0.05)2.549 (0.0005)221.3 (0.05)18.44 (0.005)
Range by unit(resolution)
Accuracy± 0.5 % of full-scale.(Includes Creep, Non-linearity & Temperature Shift at zero load)
Units of MeasureN-mm, N-cm, N-m, in-lb, ft-lb, kg-cm, kg-m (depending on range)
Measure ModesTrack, Peak, First-Peak, Track/Peak
Tool Socket SizeDual 3/8", 20 mm female square
Overload Protection120% of Full Scale
Max. Mounting Torque150% of Full Scale
Sampling Rate1000 Hz
Peak Capture Rate0.10 S
Display175 x 1.125" (44.4 x 28.6 mm) dot matrix backlit LCD
Operating Temperature60 – 95 °F (15 – 35 °C)
Storage Temperature5 – 149 °F (-15 to 65 °C)
Humidity LimitMaximum 70% rH.
Power Requirement500 mA 9 VDC
Charging TimeApprox. 14-16 Hours for Full Charge
Battery Operation12 Hours
OutputUSB 8 data bits Baud rate: 38400
Communication PortsBoth RS232 & USB simultaneous output
Size4 x 8 x 2" (100 x 200 x 50 mm); TT-25: 4 x 9.8 x 2.3" (100 x 250 x 58 mm)
Weight2.4 lb (0.9 kg); TT-25: 4.9 lb (2.22 kg)
Warranty1 year
Included AccessoriesUSB cable, charger adapter, cal. cert., 3/8" Hex rundown adapter (1, 5 & 10 N-m ranges only)
Optional AccessoriesRS-232 cable, Rundown adapter springs, Rundown adapters
Instruction Manual Click to downloadSoftware Click to download