TX-E251 - Long Range Wireless, Extended Battery Life Door/Window Sensor, External Input, Qolsys/GE & Interlogix 319.5 MHz Compatible

Long range, extended battery life wireless sensor with installation flexibility features that makes the device perfect for all applications.   Compatible with Qolsys/GE & Interlogix 319.5 MHz wireless protocol. (Crystal based sensor) 10 year battery life Pre-installed CR2 lithium battery pull tab for easy installation Maximum RF output power for superior range performance in all applications Two reed switch options for install flexibility. Input terminal for NO/NC hardwire external device applications Interchangeable brown case (included) Dimensions - 3.25 x 1.13 x 0.88 inches Conforms to ANSI/UL std 634, Certified ULC Sub C634 SKU: H1TX251A00-00002