The Extech RPM250W laser tachometers' non-contact RPM measurement capability works up to 500 mm (1.64 ft) and counts up to 99,000. It has a backlit LCD, Auto Power Off, and a freeze display with data hold. The RPM250W also has Bluetooth to support connection to the free ExView app on iOS or Android platforms.
Monitor RPM readings, analyse trends, set alarms, and generate detailed reports directly through the ExView app. View data on the backlit LCD or via the connected mobile app. Users can also capture data and generate detailed PDF reports, including photos of measurement locations. Data can also be exported in .CSV format.
Measurement Angle | ±30° from perpendicular |
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Measurement Distance | 50 to 500 mm |
Revolution Count (Photo) | 0 to 99999 |
Revolution Count (Photo) Basic Accuracy | ±2 digits |
Revolution Count (Photo) Max Resolution | 1.0 |
Rotation Speed [Photo] | 10 to 99999 rpm |
Rotation Speed [Photo] Basic Accuracy | ±0.04% |
Rotation Speed [Photo] Max Resolution | 0.1 rpm (<9999.9 rpm), 1 rpm (≥10000 rpm) |
Sampling Time (Photo) | 1 s (>120 rpm) |
Sensor Type | Photodiode and laser tube |
Wireless Connectivity | Bluetooth® (via ExView iOS/Android mobile app) |
Wireless Transmission Range | up to 90 m line of sight |
Certifications | CE, FCC, UKCA, IEC60825-1:2014 CLASS 3R |
Dimensions | 4.7 X 2.1 X 1.1 in (120 X 53 X 28 mm) |
Display | 5-digit (99999-count) backlit segment LCD |
Operating Conditions | 32 to 104°F (0 to 40°C), ≤80% RH |
Power | 3 X AAA (1.5V) batteries |
Extech Warranty | 2 years |
Weight | 2.9 oz (81.6 g) |