SM ELECTRICS - BNWAS System description Why BNWAS le guardian 2025? intuitive and comfortable use on bridge compact connecting module picks-up all periphery equipment easy to install modern control philosophy with rotary encoder allows to check all connected devices and links NMEA expansion module available MED Type Approved (wheel marked) More than 90% cases trouble shooting by e-mail without need to send service engineer on board. Click here to maker’s webstte. Information Get a quotation