I have 2 sites at which I have installed an interlogix 600-6520-95 wireless CO sensor that is controlled/monitored by an Elk M1G. At one location I installed the sensor with a definition of 17 = Carbon Monoxide, 0 = EOL Hardwire/Wireless and 1 = Normal Supervision. At the second site I installed then sensor according to the with a definition of 17 = Carbon Monoxide, 0 = EOL Hardwire/Wireless and 3 = Fire Supervision according to the L629 Rev. B 3/11/2016 Manual. Within 4 hours of installing the second location, supervision of the sensor was failing. I have no problems with the first site installation. What is the difference in the supervision settings? In order to have the unit not report to the monitoring station that supervision for the sensor at the second site had failed, I reset the monitoring to 1 = Normal Supervision. Does anyone have a better idea on how to fix the problem?