• Shopping Cart:
  • 0
  • Total: $0.00
call today

TOLL FREE 1.800.783.6664

Voice: 813.971.5001 Fax : 813.971.5117



Combination Photo Tachometer/Stroboscope


Price starts at $449.99

Product Code : 461825-NIST

Manufacturer : Extech

Add To Cart Email Friend Add To Saved Cart
Download or View this product's / series details and specifications Specifications (PDF)

Extech 461825 Combination Photo Tachometer/Stroboscope


  • Stroboscope course and fine flash rate adjustments to freeze and analyze rotating objects
  • Battery operation brings motion analysis to any location
  • Unique display features characters that reverse direction depending on measurement mode
  • Large 0.4" (10mm) 5 digit LCD display
  • Microprocessor based with quartz crystal oscillator to maintain high accuracy
  • Tachometer memory stores last, max, and min readings


2 meters in one - Stroboscope to analyze rotating objects and Tachometer to measure rpms. This professional meter, with proper care, will provide years of safe reliable service.


General Specifications
Circuit Custom LSI microprocessor based design
Display Reversible, 0.4" (10mm) 5-digit (99999 count) LCD display
Measurement units RPM (revolutions or rotations per minute)
Memory Recall Records/Recalls Max/Min/Last readings with memory push-button
Operating Temperature 32 to 122°F (0 to 50°C)
Operating Humidity < 80% RH
Power Supply Four 1.5V 'AA" batteries (UM-3 or equivalent)
Weight 0.66 lb. (300g)
Dimensions 8.5x2.6x1.5" (215x65x38mm)
Accessories Reflective tape and carrying case
Electrical Specifications
Measurement Range 5 to 99,999 RPM for the Tachometer, 100 to 100,000 FPM/RPM for the Stroboscope
Resolution 0.1 RPM (<1000 RPM) and 1 RPM (> 1000 RPM)
Accuracy ± (0.1% + 2 digits)
Sampling Time 1 second (> 60 RPM)
Photo Tachometer detection distance 2 to 6" (50 to 150mm) typical - Note: Detection distances up to 12" (300mm) are possible depending upon ambient light
Stroboscopic Flash rate 100 to 100,000 FPM (flashes per minute)
Stroboscopic Flash adjust range Range A: 100 to 1,000 FPM Range B: 1000 to 10,000 FPM Range C: 10,000 to 100,000 FPM
Stroboscopic Flash tube type High efficiency LED lamp
Stroboscopic Flash duration 60 to 1000 microseconds (approx. 16% of period)
Stroboscopic Flash Color Orange
script async src="http://tp.multiview.com/dpx.js?cid=10024&action=100&segment=omnicontrols&m=1">