Primus IQA totally proportional electric trailer brake control, the new Primus IQ is self-leveling so no level adjustment is necessary. Utilizing the primary sensor technology from Prodigy, the Primus IQ now includes the "Boost" feature that gives users the ability to apply more initial trailer braking when towing heavier trailers. It works proportionally in reverse for backing into tough spots and includes a snap-in dash mounting clip and removable electrical connector that allows the unit to be quickly stored when not in use. You will appreciate the digital readout depicting a secure electrical connection, amount of voltage delivery to the trailer brakes and diagnostic features incorporated in the LED display.Primus IQ is a totally proportional electrical trailer brake control. This easy-to-set system allows the driver maximum flexibility when determining how the trailer should respond to a braking event. Snap-in dash mounting clip and removable electrical connector allow the unit to be quickly stored (or moved to another vehicle) when not in use.Features: Utilizes Plug-N-Play port for 2-plug adapters Self-diagnostics features will illuminate LED readout when issues occur Includes a "Boost" feature Works proportionally in reverse Snap-in dash mounting clip and hardware included Digital LED readout Limited lifetime warranty Works proportionally in reverse No level adjustment necessary, adjusts to varying terrain as you drive Digital display shows voltage to trailer during braking "The Original Boost" feature allows for customized braking Integrated Plug & Play port for 2-plug adapters Diagnostic features incorporated in LED display Electric trailer brake control for up to 3 braking axles Snap-in mounting clip allows user to remove and store the control when not in use Limited Lifetime WarrantyWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.