palmermethod
Member
I bought a tach since I want to understand what speeds work best with what I turning or milling. I paid about $16 including delivery and am very pleased with it. It comes with a case, battery! and length of reflective tape. Cut a small 1/4" piece of the tape and affix to the spindle you want to measure. Point and shoot the laser until it reads to RPMs on the spindle. Reads up to 10,000rpm so it's pretty handy. FYI a nice addition to your workshop. 
Bob S. (aka: palmermethod)
Digital Laser Photo Tachometer Non Contact Tach RPM B | eBay
Bob S. (aka: palmermethod)
Digital Laser Photo Tachometer Non Contact Tach RPM B | eBay
ESCRIPTION :
- 100% Brand New
- The RPM of motors and machine parts.
- Wide measuring range & high resolution.
- The last value/min . value will be automatically stored in memory and can be displayed by turn anytime.
- The housing has been carefully shaped to fit comfortably in either hand.
- Digital display gives exact RPM with on guessing or errors. It is a great tool to measure
In wood and metal working it can be used to accurately measure the speed of a lathe. - Display: Large 5 digit, 18mm LCD.
- Test select: Automatic.
- Range: 2.5 to 99,999 RPM
- Resolution: 0.1 RPM (from 2.5 to 999.9 RPM) 1 RPM (over 1,000 RPM)
- Accuracy: +/-( 0.05% +1 digit)
- Distance: 50 to 500mm/ 2 to 20 inch
- Memory: Last Value. Max Value. Min RPM
- Size:13x7x2.9cm
POSTAGE INCLUDED :
- 1 x New Digital Laser Photo Tachometer
- 1 x English Manual
- 3 x approx. 75cm of reflective stripes
- 1 x Battery 9V
- 1 x carrying bag