Linear dxt-61 pendant transmitter The Model DXT-61A 1-Button, 1-Channel Pendant Transmitter is a battery powered, portable, miniature pendant transmitter designed for use with Linear's DX Format receivers. The transmitter can be used in a limitless number of wireless remote control applications. Pressing the button on the transmitter sends a digitally coded wireless signal to its companion receiver. The digital DX code format features over a million possible codes. Each DX transmitter is precoded at the factory to a unique code, so no field coding is required. The transmitter can send a signal for up to 10 seconds with each button activation. The DXT-61A is a one-button, one-code transmitter. Pressing the button sends the transmitter's code to the receiver. Press the button for a minimum of two seconds to insure receiver activation. The transmitter button has a positive click feel. The DXT-61A transmitter is powered from a 12-Volt Type GP-23 battery with an expected battery life of about 1 year. The red test/operate indicator lights during operation. When the transmitter does not function, or its range decreases, replace the battery. Features and Specifications A detachable 30"" neck chain is provided with each transmitter. Famous ""Panic Button"" design 30-inch neck chain included Test/operate LED Type GP-23 12-volt alkaline battery supplied DX format RF frequency: 315 MHz Dimensions: 1.42 in W x 2.2 in H x 0.66 in D (36 x 56 x 17 mm) Power: One GP-23 12V alkaline battery (supplied) Current Consumption: 5 mA average while transmitting Battery Life: One year (typical) Measured Range: 250 feet minimum in open air (four quadrant test) Accessories: 30-inch neck chain Operating Frequency: 315 MHz Compatible Receivers Linear Supervised 4-Channel Solid State Relay Receiver DXSR-1504 Linear Supervised 8-Channel Solid State Relay Receiver DXSR-1508 Linear 1-Channel Digital Isolated Relay Output Receiver DXR-701 Linear 2-Channel Digital Isolated Relay Output Reciver DXR-702 Accessories Linear Supervised Wireless/Hardwired Security Panel DUAL-824 DUAL-824 Linear Supervised Wireless Security Console DVS-1200 DVS-1200 Linear Supervised Wireless Security Console DVS-2400 DVS-2400