RX4 4-Zone Transponding 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 &amp; BDL162 are discontinued. The BDL168 is the current block detection module.