Can I use one Wireless Rain-Clik Sensor to pause (2) 6 zone controllers. I'm trying to keep the price for contoller(s) and rain sensor for 12 zones under $170. I am looking at (2) 6z RainBird ISM-6 models and the Rain-Clik (which I hope can control both Timers). What would you guy's do. All suggestion welcome.