Extech Model 461895 Includes:
- Tips and wheel for rpm or linear surface speed
- Four 1.5V AA batteries
- Reflective tape
- Carrying case
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| Extech Combination Photo/Contact Tachometers |
| 461895 |
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$259.99 |
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| Extech Combination Photo/Contact Tachometers with NIST Certificate |
| 461895-NIST |
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$354.99 |
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Extech Model 461895 Features:
- Unique display where characters reverse direction depending on measurement mode
- Large 0.4" (5 digit) LCD display
- Microprocessor based with quartz crystal oscillator to maintain high accuracy
- Tachometer memory stores last, max and min readings
- Provides wide RPM (photo and contact) and Linear Surface Speed (contact) measurements
- Accurate to 0.05% with max resolution of 0.1 rpm in either photo or contact mode
NOTE: For an additional charge, Extech will supply your meter complete with a Certificate of Calibration Traceable to N.I.S.T. with Data.
| Specifications |
Photo Mode |
Contact Mode |
| Range (RPM) |
5 to 99,999 |
0.5 to 20,000 |
| Accuracy |
0.05% rdg +1 digit |
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| Sampling Time |
1 Sec > 60 rpm |
1 Sec > 6 rpm |
| Surface Speed |
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0.2 to 6560 ft/min
0.05 to 1999.9 m/min |
| Resolution |
0.1 rpm (< 1,000 rpm)
1 rpm (>1000 rpm) |
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| Power |
4 AA batteries |
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| Dimensions |
8.5 x 2.6 x 1.5" (215 x 65 x 38 mm) |
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| Weight |
10.6 oz (300 g) |
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Extech Instruments Index 
