Spuhr US SIMRAD Interface Black. This night vision device interface by the experts at Spuhr is a US specific interface for mounting single-lever Simrad KN200/250 Image intensifiers to a 34 mm mount replacing the original mounting plate of a US Simrad dovetail. With less height the Spuhr US SIMRAD Interface is excellent gear for mounting image intensifiers onto a 34 mm mount. You'll need this device before mounting a U.S. Simrad dovetail since the two pieces of the device have to meet certain minimum measurements. For an impressive way to be sure you're attaching one of the best devices out there to your night vision gear purchase the Spuhr US SIMRAD Interface - US Simrad Dovetail. Specifications for Spuhr US SIMRAD Interface: Product Color: Black Package Contents: Spuhr US SIMRAD Interface Spuhr A-0018: US SIMRAD Interface Black