Get in and out of your garage doors quickly and easily with the Allister garage door opener. The Allister garage door remote model 9921T -318 is suitable for either household or commercial use. Use the included clip to attach this remote control in a convenient location, whether it's inside your car, in your office or inside your garage. This Allstar/Allister/Pulsar 190-108794 model is a single-channel remote control transmitter that can be used with a garage door or a gate.The Allister garage door remote model 9921T -318 is compatible with receiver model 921R-318 and 2-button transmitter model 8822T-318.