Insulated Modem with fiber optic link allows fully wireless operation of Smart Fieldmeter® Digital RFP-05M while maintaining the bidirectional communication with PC. Pictured is FOLK-02 kit that contains two modem-converters and bi-line fiber optic cable. For applications where only USB connection is required, the single IM-MU modem allows full RF isolation while providing the charging and bidirectional communication with PC through USB port.