The new SL-650QDM Quad photobeam from Optex includes even more features to protect against false and missed alarms caused by misalignment and environmental issues. With 650 feet of outdoor detection ...
SECO-LARM’s ENFORCER E-964-D390Q Multi-Frequency Twin Photobeam Detector features four selectable channel frequencies, and provides enhanced perimeter protection by reducing crosstalk between multiple ...
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