The shutter cable was designed for time-lapse recording with the POLARIE U Star Tracker and a digital camera.
When used in conjunction with a special app for the POLARIE U, you can control the shutter via SMS and your smartphone.
POLARIE U Star Tracker, smartphone, POLARIE U control app and shutter release cable for your camera
Connection to the POLARIE U: 2.5 mm stereo mini plug
Connection to the camera: 10-pin remote terminal plug