Digital Tachometer Non-Contact RPM Tach Laser Photo Sensor 3~100000RPM Accuracy RPM Gauge Marker Molecular Sieve Beads 4A Indicating Overall length: 39"

Overall length: 39"

easy to use and efficient

[APPLICATION]: Essential tool for achieving professional sharpening results on knives

[WHAT ELSE INCLUDED]: The package comes with a free 25-micron pressing screen and a black storage bag for easy storage

Buchner Funnel Flask Adapter Set

Digital Tachometer Non-Contact RPM Tach Laser Photo Sensor 3~100000RPM Accuracy RPM Gauge Marker Molecular Sieve Beads 4A Indicating Overall length: 39"Specifications: Materials: ABS Measurement Methods: Non contact Measurement Range: 3 ~ 100000RPM Accuracy: (0. 05% FS + 1RPM) Resolution: RPM: <10000: 0. 1, RPM: 10000: 1 Effective Measurement Distance: 50mm ~ 500mm Sampling Time: 0. 8s (above 60 rpm) Working environment: 10 ~ 50 , maximum 80% RH, indoor altitude <2000m Storage environment: 10 ~ 50 , maximum 70% RH (battery removed) Power: 2x1. 5V AAA (R03 LR03) Item Size: 130 * 59 * 29mm 5. 12 * 2.