GTO Wireless Exit Wand Mighty Mule Wireless Exit Wand Device : Automatically activates gate operator "Hands-Free" when a vehicle exits the property. Easy installation, no trenching required. Electromagnetic sensor detects vehicles in motion. Compatible with all automatic gate operators, or other systems requiring a dry contact input device. Wide input voltage range (8-32 vAC or 8-26 vDC). Ideal for solar application, 1.5 mA current consumption. Relay latch time of 2 seconds. May not be used as a safety device. Internal potentiometer board adjusts sensitivity from 3 to 12 ft. radius to accommodate many applications and situations. Designed for vehicular gate operators - optimized for gate control. Easy installation - two piece construction, sensing coil and electronics. Long battery life due to low power consumption Easy activation for GTO-Gen3 Control Boards Requires two AA Batteries (included) Designed to reject line noise of 50Hz or 60Hz; improves detection capability near power lines and avoids crosstalk frequency issues. GTO Wireless Exit Sensor Kit includes a wireless sensor wand with a plug-in electronic transmitter module. Transmitter has 15 foot tether designed for mounting away from driveway edge. GTO's RB709U-NB two channel receiver and two AA batteires are also included. The range between transmitter and receiver is up to 100 feet.