- Details
- Category: Tachometers

The 461950 is a 1/8 DIN panel tachometer. Rotational motor speed, moving fans, pumps, gears, and propellers should all be measured. There are two sensor pickup kinds available: proximity sensor and 0.1 in. (3 mm) target distance, range up to 36,000rpm (600Hz), photoelectric sensor 0.4 in. (10 mm) target distance, range of up to 6,000 rpm (100Hz). 1/8 DIN size. 115/230V AC, 50/60Hz.
Range | 5 to 99,990 RPM |
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Resolution | 0.1 (5 to 999.9); 1 (1000 to 9999); 10 (10.000 to 99,990) |
Accuracy | 0.05% + 1 digit (of reading) |
Display | 0.56 " (14.3mm) 4-digit (9999 count) LED display |
Display update rate | Once per second |
Power | 110/220VAC; 50/60Hz ±15% |
Panel cutout dimensions | 3.62 x 1.77" (92 x 45mm) |
Bezel dimensions | 3.78 x 1.89 x 0.2" (96 x 48 x 5.1mm) |
Meter dimensions/Weight | 3.78 x 1.89 x 4.33" (96x 48 x 110mm); 11.7 oz. (332 g) |
- Details
- Category: Tachometers

Extech 461937 is a 10-pack of spare reflective tape. Can be used with any non-contact tachometer.
- Details
- Category: Tachometers

The Extech 461920 is a tachometer designed for RPM readings. Make safe, non-contact RPM measurements (2 to 99,999 RPM) of rotating objects by focusing the inbuilt laser (1.6-ft. target distance) at the reflective tape on the object being measured. Comes with a 9-volt battery, reflective tape, and user handbook.
Revolution Count (Photo) | 1 to 99,999 revolutions |
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Revolution Count (Photo) Basic Accuracy | ±0.05% |
Revolution Count (Photo) Max Resolution | 1 count |
Rotation Speed (Strobe) | 2 to 99,999 rpm |
Rotation Speed (Strobe) Basic Accuracy | ±0.05% |
Rotation Speed (Strobe) Max Resolution | 0.1rpm |
Certifications | CE |
Dimensions | 6.2 × 2.3 × 1.6" (160 × 60 × 42mm) |
Power | 1 × 9V battery |
Warranty | 2 years |
Weight | 5.3oz (151g) |
- Details
- Category: Tachometers

461895 has both contact (0. 5 to 19,999 RPM) and non-contact (5 to 99,999 RPM) variants for use in almost any tachometer application. Uses visible light to take non-contact measurements up to 6 inches. (150 mm) from the target. It includes wheels for measuring linear surface speed (0.2 to 6560 ft/m; 0.05 to 1999.9 m/m) or RPM, as well as four AA batteries and a 23-inch length. (0.6m) reflective tape and carrying case.
Rotation Speed (Contact) | 0.5 to 19,999rpm |
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Rotation Speed (Contact) Basic Accuracy | ±0.05% of reading |
Rotation Speed (Contact) Max Resolution | 0.1rpm |
Rotation Speed (Strobe) | 5 to 99,999rpm |
Rotation Speed (Strobe) Basic Accuracy | ±0.05% of reading |
Rotation Speed (Strobe) Max Resolution | 0.1rpm |
Surface Speed (Contact) | 0.2 to 6560ft/min, 0.05 to 1999.9m/min |
Surface Speed (Contact) Basic Accuracy | ±0.05% of reading |
Certifications | CE |
Dimensions | 8.5 × 2.6 × 1.5" (216 × 66 × 38mm) |
Power | 4 × AA (1.5V) batteries |
Warranty | 2 years |
Weight | 10.6oz (300g) |