Command Access Energy Transfer Hinges (ETH) and Monitor Hinges (ETM) are the ideal way monitor the door position and to pass low voltage power from the hinge jamb to the lockset without having any exposed wires. These hinges are commonly used with electric mortise & cylindrical locks, electric strikes (when on a pair of doors), electric exit trims, latch pullback devices, door mounted card readers and low voltage door lights. We stock a vast variety of our Command Access UL-F rated hinges along with a good stock of most major hinge brands. With a wide array of sizes and finishes, we stock the materials to meet your immediate needs.