Check the listing for details. Seco-Larm Enforcer 2-Button RF Transmitter, 3-Channel, Pre-Coded (SK-919T2-GNQ). Color: Black, Condition: New. Listed at 18.79 USD. The Seco-Larm Enforcer Pendant RF Transmitter (Pre-Coded) is compatible with all 315MHz Seco-Larm receivers. It will allow you to wirelessly control various applications/devices such as home automation functions, garage doors, gates, house lights, alarm panels, or other devices connected to a Seco-Larm receiver. For example, each member of your family can carry a personal transmitter that operates your garage door opener, arms/disarms your security system, or controls your outdoor lighting with the push of a button. The transmitter easily fits in your pocket with its slimline design and it comes with a keychain for easy access.Wirelessly control applications/devices with the push of a buttonCompatible with all 315MHz Seco-Larm receiversOver 68 billion possible codesOperates up to 500 feet (depending on installation and operating environment)LED transmission indicatorRF anti-scan protectionContentsTransmitter with KeychainBattery (CR2032, included)Technical DetailsManufacturer Part #: SK-919T2-GNQUPC: 676544019206Type: 3-ButtonNumber of Channels: 7 ChannelsColor: BlackRF Frequency: 315MHzOperating Range: Up to 500 feet (depending on installation and operating environment)Battery: X-930-096 (CR2032, included)Dimensions: 1-1/4 x 2-3/16 x 5/16 inches (31.5 x 55 x 8 mm)Credentials: FCC, ICWarranty: 2 Year