Renata BWT 94 Battery and Watch Tester. Watch test function for analog quartz watches. Tests 1.55 Volt silver oxide and 3 Volt lithium battery cells. Features a special inductive cicuit which can test the battery of analogue watches with a stepping motor without the need to open the watch case. The device relies on latest 3 Volt technology and is powered by a Renata CR2430 lithium coin cell.
