REED R7100 Combination Contact / Laser Photo Tachometer


This tachometer features both the ability to measure RPM (revolutions per minute) in rotational equipment and surface speed m/min (meters per minute) with included contact adapters. The R7100 features a built-in laser pointer to assist with identifying the target area.


  • Dual function unit with both contact and non-contact capabilities
  • Provides fast and accurate RPM (revolutions per min) measurements of rotating objects and surface speed measurements m/min (meters per min) with included contact adapters
  • Built-in laser pointer identifies target area
  • Internal memory recalls maximum, minimum values as well as last value stored
  • Large LCD display and low battery indicator


RPM Range (Contact)0.5 to 19,999
RPM Range (Photo)2.5 to 99,999
Surface Speed Range 0.05 to 1,999.9 m/min
ResolutionPhoto: 0.1 RPM (≤999.9) / 1 RPM (>1000)
Contact: 0.1 RPM (≤999.9) / 1 RPM (>1000)
Surface: 0.01 m/min (≤99.99) / 0.1 m/min (>100)
Basic Accuracy±(0.05% + 1 dgt.)
General Specifications
Visible IndicatorYes (Laser)
Target Distance1.6ft (500mm) (Photo)
Response Time<1 sec
Sampling Time0.8 sec (over 60 RPM)
Display Size/Type5 Digit LCD Display
Auto shut-offYes
Internal MemoryMax, Min and Last
Laser ClassClass III
Low Battery IndicatorYes
Power Supply4 x AA Batteries
Product CertificationsCE
Operating Temperature32 to 122°F (0 to 50°C)
Storage Temperature-4 to 140°F (-20 to 60°C)
Operating Humidity10-90%
Dimensions8.3 x 2.9 x 1.5" (210 x 74 x 37 mm)
Weight7.9oz (224g)