The L50(150)A-LP2-35 from Ophir Optronics is a thermal power/energy laser measurement sensor for high power density and long pulse lasers. It has a 35 mm aperture and can measure from 100 mW to 50 W continuously and up to 150 W intermittently. The sensor can measure energy from 40 mJ to 3000 J. It is able to measure high power lasers of up to 4000 W by measuring the energy of 0.4 - 4s exposure to the laser. The high damage threshold LP2 absorber covers the spectral range from 0.25 to 2.2 µm. The sensor comes with a standard 1.5-meter cable for connecting to a meter or PC interface.