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Product Features
- OTC 3665 phototach can be used as a contact as well as a non-contact tachometer
- Four styles of contact adapter tips clip easily to the top of the phototach
- Infrared technology makes the phototach accurate, convenient, and easy to use
- Infrared beam not affected by ambient light
- Non-contact design results in (zero) torque loss for true precision
- Phototach is equipped with a laser pointer for accurate targeting
- Reflective tape placed on a revolving object
- Measured at distances from 2" to 20"
- Wide measuring range
- High resolution
- 2.5 to 99,999 rpm
- Large 5-digit display
- Autoranging
- Min/max memory storage
- Low-battery indicator
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