Interlogix TX-E221 Recessed Door/Window Sensor

Recessed Door/Window Sensor, 319.5MHz.

The TX-E221 Recessed Sensor from Interlogix is compact and robust for dependable operation. Hidden within the door frame, this contact virtually invisible when closed making it ideal discreet sensors are needed. uses a replaceable lithium battery that lasts up to five years under normal usage comes with standard flanged top.

• Field proven wireless technology
• Compact design
• Easy battery
• Wide gap 1" maximum
• Replaceable 5 of life(based on usage)