Micro Motion Rack-Mount Transmitter for Commercial Trade - Model RFT9739 is a highly secure and versatile device designed for use in custody transfer and other commercial trade applications. It features a range of security measures, including write-protection for configuration and calibration parameters, and an optional lockout kit to prevent unauthorized access to the electronics.

This transmitter is also equipped with three security switches that enable the user to customize the level of security. These switches can be used to disable flowmeter zeroing, disable resetting of totalizers, and write-protect all configuration and calibration parameters. The transmitter offers eight possible security modes, each with a different combination of disabled functions and write-protected parameters.