Features
- Large 5 digit LCD display is easy to read
- Built-in memory recalls last MAX/MIN value stored
- Autoranging with 0.05% accuracy
- Non-contact measurements from 5 to 99,999rpm
- Accurate readings updated every second
- 2 to 6 inches (50 to 150mm) measurement distance (depending on ambient light)
- NIST Calibration Certificate
The Extech 461893-NIST Non-Contact Photo Tachometer make non-contact RPM measurements of rotating objects using a reflective tape that is placed on the object being measured. Visible light is then directed at the tape, reflected back to the tachometer and a reading is made.
The photo tachometer with integral light beam can measure up to 6" (152mm) away from its target, has a basic accuracy of ±0.05% of reading and ranges from 5 to 99,999 rpm. For this Extech Non-Contact Photo Tachometer, the readings are updated every second and you can recall the LAST/MAX/MIN values.
The Extech 461893-NIST comes complete with 23" (0.6m) reflective tape, four 1.5V AA batteries and convenient carrying case.
