Multi–functional digital tachometer
Pinpoint accuracy combined with measurement versatility


The Multi–functional digital tachometer TKRT 20 is a user–friendly and accurate digital tachometer utilising laser or contact for measuring rotational and linear speed. Equipped with a laser and contact adaptor, it offers excellent speed measurement versatility in five different modes. Additionally, the large angular range of ± 80° to target facilitates the easy measurement in areas where straight–line access is difficult. The laser optical system allows easy and quick speed measurement at a safe distance from rotating machinery.
SKF TKRT 20 (fig 1)
Supplied in carrying case for protection and portability.
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With this digital tachometer the user can select to measure:
- rpm, rps, m, ft or yards per minute or second,
- length or revolution counting, or
- time interval - Wide speed range and the various measurement modes make the TKRT 20 suitable for measuring speed in many applications
- Large angular range of ± 80° to target facilitates easy measuring in areas where straight–line access is difficult
- The large inverting LCD display facilitates easy reading even when pointing the unit down into the machinery
- Compact design; one–hand operated instrument
- Supplied in carrying case for protection and portability
- The digital tachometer TKRT 20 can also be equipped with remote laser sensor, which is optionally available
SKF TKRT 20 (fig 1)
Supplied in carrying case for protection and portability.
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Technical data
Technical data Designation TKRT 20 Display Inverting vertical 5 digit LCD Displayed resolution Fully auto ranging up to 0,001 digit or ±1 digit fixed Memory Last reading held for 1 minute Low battery indicator Yes Auto switch off After 1 minute Measurement - Optical modes r/min and rps (also Count and Time interval) - Contact modes r/min and rps, metres, yards, feet, per min and per sec - Count modes total revs, metres, feet, yards - Time interval in seconds between pulses (reciprocal rate) - Speed capture
featureMaximum, Minimum or Average rate - Sampling time 0,8 seconds or time between pulses
0,1 seconds auto-selection in Max or Min capture mode- Linear speed 0,3 to 1 500 metres/min (4 500 ft/min) or equivalent in seconds Optical Measurement - Rotational speed
range3 to 99 999 r/min - Accuracy ±0.01% of reading ±1 digit - Measuring distance 50 mm to 2 000 mm (1.9 - 78.7 in.) - Angle of operation ±80˚ - Laser sensor 1x built-in class 2 laser - Remote laser sensor Optional TMRT 1-56 Contact Measurement - Rotational speed
rangeMax. 50 000 rpm for 10 sec - Accuracy ±1% of reading ±1 digit - Contact adaptors Included with rpm cone & removable metric wheel assembly Battery 4 x AAA alkaline type IEC LR03 Operation time 24 hours continuous use Additional power source N/A Product dimensions 213 x 40 x 39 mm (8.3 x 1.5 x 1.5 in.) Product weight 170 g (0.37 lbs) Operating temperature 0 to 40 °C (32 to 104 °F) Storage temperature –10 to +50 °C (14 to 122 °F) Relative humidity 10 to 90% RH non-condensing IP rating IP 40 Case dimensions 260 x 85 x 180 mm (10.3 x 3.4 x 7.0 in.) Case contents 1x SKF Tachometer TKRT 20
1x set of contact adaptors TMRT 1-57
4x AAA batteries
1x set of reflective tape
1x printed instructions for use
1x calibration certificate -
Accessories
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Spare parts
Related documents
- Product data sheet TKRT 20 (117 KB)
- Instructions for use TKRT 20 (649 KB)