The ELK-6023 Wireless Recessed Door Sensor is the ultimate wireless security device for discriminating customers. It mounts into a 3/4in. drilled hole in a wooden door jamb and becomes nearly invisible once the door is closed. It features Elk's Industry Leading Two-Way Technology with positive signal acknowledgment, extended range, and long battery life.
Includes:

• Wireless Recessed Door Sensor
• Magnet
• Replaceable 3.6V Lithium battery
• 2 #4 x .5 in. Flat Head Sheet Metal Screws
• Instructions

The Inovonics single input universal transmitter is designed for use with almost any standard contact or sensor. Continuous check-ins ensure reliability.

Features:

• Mounting bracket included for quick and easy installation
• Can be used with almost any standard NO/NC contact
• Fully supervised
• Includes case tamper protection

A bulky home security system can be an eyesore. Adding to that stress is hard wire installation permanently altering the aesthetics of your room or window treatment. With its wireless connectivity and fully concealed platform, however, the Ion Security Micra is a window security sensor that finally eliminates these pesky inconveniences.

Features:

• Dimensions: 0.33 in. deep x 0.75 in. diameter
• Fully concealed for wood, vinyl or aluminum clad windows
• Compatible with all DSC, GE, HAI and 2GIG Wireless receivers
• 500 ft open air wireless transmit range
• Long-life Battery  5+ years (avg)