OEM low-cost detector head/Optical Power Monitor (rectangular housing) with 1 mm active area InGaAs detector, for 900 - 1650 nm, -65 dBm to +10 dBm dynamic range. With RS232 remote interface. Unit comes calibrated at 1064 nm, 1310 nm, 1480 nm, 1550 nm, and 1625 nm. Unit supplied with FC, LC, ST, and SC removeable receptacles.