Tachometers Photo & Contact type 2 in 1 Produces 10mS pulse signals at

Produces 10mS pulse signals at 100mA

Convenient mini size with protective rubber holster and tilt stand

See these notes for working with an Arduino Mega

The current limit can be adjusted to suit a variety of applications

it is sensitive to low wind speed and can measure as high as 90 miles/hr

Tachometers Photo & Contact type 2 in 1 Produces 10mS pulse signals atPhoto tach. 5 to 100,000 RPM Contact tach. 0. 5 to 19,999 RPM Can measure surface speed Includes Both a Photo and Contact Tachometer in One Precision Instrument. Comes complete with accessories, reflective tape and carrying case Photo tach. 5 to 100,000 RPM, Contact tach. 0. 5 to 19,999 RPM Includes both a photo and contact tachometer into one precision instrument. Comes complete with accessories, reflective tape and carrying case, Can measure surface