862-37-ASKDRXV3 Sherlotronics long range receive Sherlotronics long range receive Long-range performance: 500m line-of-sight Signal reception LED indicator 12V - 24V AC/DC voltage input You might also be interested in: 862-37-RX1-500 / RX4-500 Sherlotronics receivers 862-37-WMTX Sherlotronics wall mount transmitter 862-37-GTM Sherlotronics Guard time management units