Digital Tachometer with combined laser and mechanical contact

Combined contact and non-contact digital tachometer which measures rotation rate and surface speeds.

The tachometer includes, reflective tape, cone tip, flat tip, and wheel attachments for measuring surface speeds. 3 pcs. of 1,5V AA batteries included. Comes with a foam-fitted, hard-plastic storage box.

• Measures rotation in RPM
• Measures surface speed in m / min.
• Memory automatically remembers 3 values ​​- last, highest and lowest value.

Measuring range:

• 2,5 ~ 99999 RPM (r/min) non-contact speed
• 0,5 ~ 19999 RPM (r/min) contact speed
• 0,05 ~ 1999,9 RPM (r/min) contact surface speed

Resolution:

Non-contact speed:
0,1 RPM (r/min) (2,5 ~ 999,9 RPM), 1 RPM (r/min) (over 1000 RPM) 

Contact speed: 
0,1 RPM (r/min) (0,5 ~ 999,9 RPM), 1 RPM (r/min) (over 1000 RPM) 

Contact surface speed:
0,01 RPM (r/min) (0,5 ~ 99,99 m/min), 0,1 m/min (over 100 RPM) 

Measurement accuracy: ±(0,05% ) 

Range selection: Automatic switching

Time base: 6HMz quartz crystal vibrator

Effective distance: 50 mm ~ 500 mm (photoelektric type)