The Universal  XTR™ provides broad 3G connectivity to your existing Encoder and pulse output infrastructure. The XTR™ enables simple, cost effective technology migration from a utility's existing competitor touch wand systems and nearly all registers with a pulse output – Magnetic, Propeller, Ultrasonic, or Commercial Gas meters. http://www.mastermeter.com/en/product.html?category=Automatic%20Meter%20Reading&item_id=299