FDM-1 is a standard-sized dual monitor module used to monitor and supervise two independent two-wire Style B (Class B) dry-contact initiating device circuits (IDCs) at two separate, consecutive addresses in intelligent, two-wire systems.
Dimention : 280x340x1100 mm | Frequency : 50HZ. / 60HZ. | Power Consumption : 150 Watts. 24V. | Work Temperature : -40'c to 85'c | Remote control Distance : >30m. | Operation Life : >=350 million