What type and how long do the batteries last in the KST1000 Shot Timer? July 03, 2023 19:59 The KST1000 Shot Timer uses two CR123 batteries. Typical battery life is up to 90 hours of use. Related articles What does the Filter On/Off menu item do? Why would I want to use the buzzer mute on a KST1000 Shot Timer? Shot Timer Manual With the sensitivity set to 6-Dry Fire, shots are continuously detected in ambient conditions. Is this normal, and what should I do?