Seco-Larm Seco-Larm SD-R400-BQ JMAC# SECO-LARM-SD-R400-BQ Microwave RTE Sensor, 12~24VDC, 10-ft (3m) adjustable sensing range, adjustable relay output time, red LED indicator on activation, indoor use only. UPC: 676544017707Also known as: SL-SDR400BQ, SDR400BQ For more information about the Seco-Larm... MSRP: Was: Now: $60.50 Add to Cart