the measurement is carried out, as long as the measuring key is pressed

Non-contact measurement of revolutions, using a laser beam and reflective tape

Contact measurement of revolutions, surface speed and length


Hand-held tachometer for accurate contact measurement and non-contact measurement of revolution of engines or shafts as well as surface speed and length e.g. belts and conveyer belts
Tachometer with LCD display and many selectable units
High quality hand-held tachometer for professional use


Non-contact measurement of revolutions, using a laser beam and reflective tape

Contact measurement of revolutions, surface speed and length
| Model | Application | Display | |
| DT-205L | contact measuring and non-contact | LCD | |
| alternative | |||
| DT-207L | contact measuring and non-contact | LED | more |
| DT-2100 | contact measuring and non-contact | OLED | more |
| DT-105A | contact measuring | LCD | more |
| DT-107A | contact measuring | LED | more |
All models are also available with a 12 inch (circumference) rubber measuring wheel: z. B. Tachometer DT-205LS (12″ circumference measuring wheel which is offered for safer and easier surface speed measurement by keeping the users hand farther from the moving surface and slowing down the rotational speed)
| Measuring range: (floating decimal point) | Revolution (contact): 0.8 – 25000 rpm; Revolution (non-contact): 6 – 99999 rpm Speed: 0.11 – 3810.0 m/min; 5 – 99999 in/min; 0.4 – 12500 ft/min; 0.13 – 4167.0 yd/min Length: 0.02 – 99999 m; 0.1 – 99999 in; 0.10 – 99999 ft, 0.02 – 99999 yd |
| Accuracy: | Revolution (contact): 0.8 – 9999.9 (±0.6 rpm) 10000 – 25000 rpm (±0.006 % of reading ±1 digit) Revolution (non-contact): 6 – 8300 rpm (±1 rpm) 8301 – 25000 rpm (±2 rpm) 25001 – 99999 rpm (±0.006 % of reading ±1 digit) |
| Measuring units: | Revolution: rpm Speed: m/min; ft/min; yd/min; in/min Length: m; in; ft; yd |
| Laser, class 2: | Output<1 mW, wavelength 670 nm, max. measuring distance 2 m |
| Memory system: | 13 readings (incl. MIN + MAX + last) for 5 min after last use |
| Resolution: | Length: 0.01905 m/impulse (with adapter) Revolution: 8 impulse/revolution (with adapter) |
| Display: | 5 digit, LCD 12 mm |
| Display update: | 1 sec |
| Over range indicator: | Display is flashing |
| Auto power off: | After 5 min of non-use |
| Power supply: | 2 x 1.5 V Type AA, approx. 40 h continuous use |
| Low battery indicator: | ”Low Bat” flashes at the display |
| Temperature range: | 5 – 45 °C |
| Air humidity: | 85 % RH, max. |
| Housing material: | Die-cast aluminium |
| Tripod fixing: | 1/4-20 UNC thread |
| Dimensions: | 167 x 60 x 46 mm (LxWxH) |
| Weight, net (gross): | Approx. 350 g (800 g) |
Specifications subject to change without notice!
Tip for contact measurement of revolutions (rpm>)
Order number: 10006S
Tip for contact measurement of revolutions (rpm)
Order number: 10007S
Wheel with 6 inch circumference for measuring line speeds
Order number: 10002S
Extension shaft 75 mm long
Order number: 10008S
Adapter with serrated lock washer (old version)
For contact measurement with series DT
Order number: 10012S
Adapter without serrated lock washer (current version)
for contact measurement with series DT
Order number: 10015S
1 page (35 pieces), self-adhesive
Measuring Wheel (6 inch circumference) with special groove for measuring yarn and wire speeds
Order number: 10005S
Set with 140 self-adhesive reflective tapes, (1 Set = 4 x 35 pieces)
Order number: 10009S
Tachometer DT-205L with 2 batteries, carrying case, 1 adapter H, 2 rubber tips, 1 funnel, 1 measuring wheel with 6 inch circumference, 1 extension, 1 page reflective tapes (35 pieces), Certificate of Compliance with the order 2.1 according EN 10204 free of charge and operating instructions in German and English