Laser Range Finders
The most common laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the target and returned to the sender.
Due to the high speed of light, this technique is not appropriate for high precision sub-millimeter measurements, where triangulation and other techniques are often used.
The precision of the instrument is determined by the rise or fall time of the laser pulse and the speed of the receiver.
One that uses very sharp laser pulses and has a very fast detector can range an object to within a few millimeters.
We stock all the leading brands including Bushnell, Hawke, Nikon, Deben, Swarovski etc.