ZGM – Zero Glitch Module is an opto isolator for use in any electric RC model.It is designed to cut all electrical connection between the speed control and the receiver whilst still maintaining a strong connection. This removes any interference caused by the connection between the speed control and receiver and has been known to improve the strength of the connection and also increase the range of your model.LEDs are used to show correct connection.The ZGM is also 100% waterproof so can be mounted anywhere in the model.Using opto-isolators requires the use of a receiver battery pack. Reviews There are no reviews yet. Be the first to review “Mtroniks Zero Glitch Module” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.