1. Material: ABS2. Measuring range: 100~30000rpm3. Measurement accuracy: 2.5~99999RPM4. Resolution: 0.1RPM, 1RPM5. Sampling frequency: 0.8Sec6. Laser test generator, photodiode, fast measurement response7. Button panel, touch to select the desired function, easy to operate8. Powered by 3 AA batteries (not included)9. Large-screen LCD display, the value is clearer and more accurate10. Automatic data storage, high measurement range11. Weight: 91 grams12. Dimensions: 150x56x31mmSpecification: Package Weight One Package Weight 0.13kgs / 0.28lb One Package Size 18cm * 8cm * 6cm / 7.09inch * 3.15inch * 2.36inch Qty per Carton 232 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 232 pcs = 41064 pcs40HQ: 412 cartons * 232 pcs = 95584 pcs