Towmate’s iMon Monitoring System- You will never have to worry about losing yourlights again with this easy to use interactive monitoring System. Operates withany system equipped with iMon electronics. Purchase with a new unit or upgradeyour existing one easily to work with the iMon.Monitor the functions of your light bar (LEFT TURN, RIGHT TURN, STOP, andHAZARDS), be alerted when you leave your light bar behind (signal Strength fromwireless light bar), and monitor the battery level of your light bar all withone easy to use device. Simply plug your iMon into your vehicles cigarettelighter and be 100% aware of your wireless light bar abilities and location.Towmate’s “Short Range Monitor” can be mounted in the TM2 towlight to monitorthe signal. If the signal is lost then an alarm will sound to alert you of yourtowlight not working properly or you have left it on the vehicle you justtowed. Previous Part Number: TM-I-MON Compatible with every TowMate tow light except the: TM22G, TM22Y, and RVHW32, TM-FLUX and TM-FLUX32 Compatible only with red wire transmitters If purchasing an iMon, back up lights are not available on the light bar in which the iMon is being used