Take contact and non-contact rpm measurements in all applications. Both units have an easy-to-read 5 digit LCD display. Memory function allows user to store MIN/MAX values and last reading. LCD characters reverse for type of measurement.

Unit 3081B is equipped with a laser pointer for greater distance applications.

Units come complete with wheels for linear surface or rpm measurements. Also included are four AA batteries, a carrying case and 23" of reflective tape. CE marked.

SPECIFICATIONS
Display Counts: 99,999 count LCD
Photo Range (rpm): 5 to 99,999 for 3081A / 10 to 99,999 for 3081B
Contact Range:
  rpm 0.5 to 19,999
  ft/min 0.2 to 6560
  m/min 0.05 to 1999.9
Accuracy: ±(0.05% of reading + 1 digit)
Maximum rpm Resolution: 0.1
Measurement Distance: 6" for 3081A / 6.5 ft for 3081B