The Model ACT-34B 4-Channel Block Coded Key Ring Transmitter is designed for use with Linear's access control products. The Model ACT-34B is a four-channel device supplied with a quick-disconnect key ring. Also included are lithium batteries with a five-year service life. A unique 10-second time-out feature prevents the system from being shut down by a single transmitter transmitting continuously. 1.25" W x 2.25" H x 0.48" D
Only ordered 4, have to used it. No experience with this one.
The ordering process went smoothly and we received this shipment very quickly! We are also very satisfied with this product!