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RX4 4-ZoneTransponding Receiver Add-on for BDL Series Detectors
4 Zone Transponding Receiver. Add-on for BDL16 series occupancy detectors. Use up to two RX4s with a BDL168 to add transponding to any 8 detection sections on your layout. Use one RX4 with a BDL162 or BDL16 to add transponding to any 4 detection sections on your layout. (Note: BDL16 & BDL162 are discontinued).