Extech 461995-NIST Contact and Photo Tachometer Combo Meter

Extech 461995-NIST - NIST Calibration Certificate - Combination Contact Laser Photo Tachometer features: Combines both contact and non-contact models for use in all applications; Characters on display reverse direction depending on contact or photo mode; Uses a Laser for greater distance non-contact measurements up to 6.5ft (2m), etc.