Features:
1 Feature:
1. DT2239B is a digital handheld strobe with high reliability and mobility.
2. It can measure the speed of movement, the state of movement, and the surface properties of rotating objects.
3. Large LCD display with backlight, convenient to read data in the dark.
4. Wide range of applications, eg diagnostics of all kinds of rotors, motors, fans, gears, vibrations, etc.
5. Low battery indicator, fine coarse adjustment, single and step adjustment, easy measurement.

Technical data:
Measuring range: 60-4000rpm/FPM
Coarse / fine adjustment range: (<1000PM), coarse adjustment: ± 10 U / min / FPM; fine setting: ± 0.1 U / min / FPM. (≥ 1000 rpm). Coarse setting: 100rpm / FPM; fine setting: 1 U / min / FPM
Accuracy: 0.05%
Resolution: <1000 rpm: 0.1 U / min / FPM; ≥ 1000 RPM.1RPM / FPM
Display: 5, maximum display 4000
Power supply: 4 x 1.5 V (AAA) batteries (not included)
Power consumption: approx. 60 mA.
Dimensions: 200 x 70 x 50 (mm)
Housing material: ABS
Package content: 1 x host, 1 x manual

Note:
Due to different monitors and lighting effects, the actual color may be slightly different from the pictures.
Slight dimensional discrepancies in the range of 5–30 mm result from manual measurement.

Package includes:
1 x digital non-contact strobe.
1 x User Manual