Selling my LPM. Uses a 20C-A sensor that can continuously measure laser output at 4 watts, or can achieve more with a power sink. You can look up the ophir sensor head specs online.
Can be used with usb cable to a computer and be used for datalogging (Peregrine software)
Getting laser readings take a second instead of waiting a long time with many alternatives.
Asking 300 euro shipped worldwide.