© 2011 Heddolf Keystone International 833 FM 289, Boerne, TX 78006 | Phone: 830 537 5782 Toll-Free 800 449 4283 Fax: 830 537 5784 | Email: heddolf@hotmail.com

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• 2-year warranty
• Same-day shipping
• Compatible with all brands of openers
• Friendly, prompt tech advice
• Most competitive price
• 25 years of experience in producing quality radio controls

Keystone has more than 20 years experience in contract manufacturing for some of the world’s leading companies.

Our capabilities include a complete in-house engineering department with a strong emphasis on radio frequencies and infrared technologies with cost efficient factories located in China.

833 FM 289
Boerne, Texas 78006

Phone: 830-537-5782
Fax: 830-537-5784
Email: heddolf@hotmail.com

P.O. Box 428
Comfort, Texas 78013