Green Power, Hybrid Power
PHOTO/CONTACT TACHOMETER
Model : DT-2336G

Features :

* Green power, hybrid power
* PHOTO/CONTACT TACHOMETER
* Power supply from generator ( battery is no need ) or DC 9 V battery.
* Photo Tachometer : 5 to 100,000 RPM.
* Contact Tachometer : 0.5 to 19,999 RPM.
* Surface speed : m/min., ft/min., inch/min..
* Patented.