Check the listing for details. NEW EXTERIOR Irritrol / Hardie Rain Dial RD-600 R / RD-600 EXT SYSTEM. Condition: New. Listed at 139.99 USD. You are currently bidding on an BRAND NEW Irritrol / Hardie RD-600 R EXT (exterior) COMPLETE sprinkler system which comes with a 5-year Irritrol factory warranty. The system has been fully tested in a production environment and is guaranteed to work 100%. I take great pride in selling every model on eBay and this is reflected in my high feedback score. :-) 30-day money back guarantee (warranty) starting on the delivery date of the device. If you have any questions, please contact me via email. Thank you and good luck on eBay. Note: I am selling the entire system which includes the timer, terminal wiring board, transformer, 2-keys, manuals and the gray weather proof enclosure. What you see in the photos is exactly what is being auctioned. Also, I do purchase used and broken RD-600s, RD-900s and RD-1200s timers for $20-$30 each working or not working if you have one laying around. It is one last thing to be tossed in a landfill plus you receive cash for your old timer / controller.