Profile: Industrial Electronic Services Ltd. specializes in electronic services. We offer BTM-250 belt tension meter. Our BTM-250 is a non-contact infra-red handheld meter for the accurate measurement of the resonant frequency of oscillation and tension of a belt. The BTM-250 can determine within a few seconds if the belt is at the correct tension, with optional min and max parameters that can be stored for up to 250 different belts. We offer research & development, PCB and software design services. We also repair DC & AC servo and spindle drives.