Over the past four decades, LaserSpeed® Pro gauges have been at the forefront of innovation, setting new standards in accuracy and reliability for non-contact length and speed measurement in industrial settings. Using Laser Doppler Velocimetry (LDV), the LaserSpeed Pro range accurately measures the velocity and length of moving surfaces or objects without physical contact. With over 20,000 installations worldwide across various in-process applications, LaserSpeed Pro gauges are suitable for integration into any production line handling diverse materials such as wires, cables, non-wovens, extruded products, paper, plastic films, aluminum, and steel. Irrespective of your production line’s speed or the type of product being processed, LaserSpeed® Pro consistently delivers precise and dependable measurements, day in and day out. But how do you know which model best suits your needs?
We’ve put together this handy comparison chart to help guide you through the differentiating features of the LaserSpeed Pro range. If you’d like to chat through your options further, why not get in touch?
LaserSpeed Comparison Table
Feature |
LS4500 |
LS8500 |
LS8500 M Series |
LS9500 |
| Accuracy | <±0.03% of reading | <±0.03% of reading | <±0.05 -0.1 % of reading depending on version | <±0.03% of reading |
| Repeatability | ±0.02% | ±0.02% | ±0.02% | ±0.02% |
| Internal measuring rate | 20KHz | 50KHz | 50 KHz | 100KHz |
| Measures zero speed | ❌ | ❌ | ❌ | ✔ |
| Measures forward & reverse | ❌¹ | ❌¹ | ❌¹ | ✔ |
| Start/End detection | ❌ | ✔ | ✔ | ✔ |
| Internal material detection | ❌ | ✔ | ✔ | ✔ |
| Measures object hotter than 700°C | ❌ | ✔² | ✔² | ✔² |
| Elongated spot (for bouncing or unguided products) | ❌ | ❌ | ✔ | ❌ |
| Output update rate | 2 to 64 ms in 2 ms increments | 1 to 2000 ms in 1 ms increments | ||
| Serial output | RS232 | RS232 & RS422 | ||
| Quadrature output frequency max | 250KHz | 5Mhz | ||
| C Series available (90° angle optic) | ❌ | ✔ | ❌ | ✔³ |
| E Series available (protection housing) | ❌ | ✔ | ✔ | ✔ |
| X series available (SS protection housing) | ❌ | ✔ | ✔ | ✔ |
| Stand off versions / Depth of field (mm) | 100 / 15 300 / 35 600 / 50 |
300 / 20⁴ 600 / 50 1000 / 100 |
300 / 35⁴ 600 / 30 1000 / 40 |
300 /35⁴ 600 / 50 1000 / 100 1500 / 200 2000 / 200 2500 / 200 30000 / 200 |
|
LS 8500 M |
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¹ Requires forward/reverse signal
² Not including the 300 and 1000 mm stand off versions
³ Only available for 600 & 1000 mm stand off versions
⁴ Not available E or X Series
