UW Technics TTL Converter for Nikon D850 & D500 for Isotta Housings

Optoelectronic TTL Converter for NIKON for ISOTTA D500 and D850 housing, including Leak Detector electronics, Sirene, Leak Sensor, and 2 pcs Optical Bulkheads with built-in LED. Compatible underwater strobes: Inon Z-330 / Z-240, Sea&Sea YS-D1 / YS-D2 (China) / YS-250, Ikelite DS161 / DS160, Subtronic Pro-270 / Pro-160, Retra Pro (including HSS). Two optional ISOTTA electric bulkheads are supported as well, onboard sockets have ISOTTA style pinout. This TTL board is purposed for installation instead of Isotta electronics, directly on the metall wall of the housing upper front part. Check your housing regarding such installation version before TTL system purchasing.