... Channel Receiver receives wireless signals from YTL wireless sensors and switches and provide 4 relay outputs, which are grouped into 1 ... in offices, hotels, schools, homes, factories, hospitals, municipal buildings, and other indoor places.Parameters l Standards-compliant: Q/67218248-4 ... AC100V~265V, 50Hz/60Hz; Use the product out of the scope may cause abnormal work or damage equipment.l The product ...