30 - 12,500 RPM/FPM and higher using harmonics The DT-900Pocket Strobe? is a highly stable instrument for taking non-contact RPM measurements and inspecting moving parts by “freezing” or “slowing down” the action. The DT-900 requires only one hand to operate, yet delivers performance comparable to much larger and heavier “pistol-grip” type models. The DT-900 is ideal for industrial, laboratory, R&D and academic environments. Its small size and excellent performance provide superior convenience and value — at a reasonable price. The DT-900 Techstrobe series is offered in various configurations to fit the exact needs of the user. Models include DT-900, DT-900-TR , DT-900-UT, DT-900-PR and DT-900-UP. Refer to the BUY NOW section below for complete details and prices. 
Features
Easy to use with just one hand "LOW BAT"appears in the display if the energy becomes less. Resolution of 0.1 Flashes per minute. The changeable NiMH battery powers the stroboscope 1-2,5 hours. NIST-Traceable calibration certificate & test report optionally available
Specifications
| Flash Range | 30 - 12,500 fpm | | Accuracy | ± 0.01% | | Resolution | 0.1 fpm | | Operation modes | Flashes with internal trigger
FLashes with external trigger
Tachometer | | Display | 8 digits, 15 mm high | | Flashtube | Xenon 10 W / white 6500 K | | Flash Duration | 10 - 15 μs / approx. 400 lux | | Flash life | 100 mill. flashes | | Phase Adjustment | 5° per increment | | Input signal | 0.25 - 983.3 Hz | | Output signal | 0.667 - 108.333 Hz | | Extern trigger | 5 V TTL Signal | | Power | 100-240 V DC quick-change battery | | Housing | Polycarbonate | | Tripod mounting | 1/4 - 20unc, length 8 mm | | Weight | 1.4lb (620 g) | | Temperature range | 50 - 95° F (10 - 35° C) | | Warranty | 1 years | | Dimensions | 9.6" x 2.6" x 3.1" (24.5 cm x 6.5 cm x 8 cm) |
Complete Kit
The DT-900 is supplied as a complete kit including stroboscope, rechargeable battery pack, battery charger with exchangeable plugs, spare flash tube, operation manual, carrying case with foam insert and space for additional rechargeable battery 
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