I use Growtronix sensors and devices in my grow box and have a second, basic system starter kit on eBay.
You can see it here:
http://www.ebay.com/itm/172313296864?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649
Regards

You can see it here:
http://www.ebay.com/itm/172313296864?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649
Regards
