Key Features:

• Ultra-Slim Profile: Thin, slim-line design (just 0.71″ wide) that mounts neatly on door/window frames without bulky appearance. Offers a more polished look compared to standard contacts
  
• Two Color Options: Available in white (ELK-6020) or brown (ELK-6020BR) to best match the installation surface. The brown version is ideal for stained wood or dark vinyl windows where a white sensor would stand out
  
• Two-Way Wireless Technology: Communicates with Elk’s Alarm Engine transceivers, supporting encrypted, bidirectional signals. This yields extended range and battery life (up to 7 years on a lithium battery) and allows the panel to poll the sensor status on demand
  
• Tamper Protection: Equipped with both cover tamper (triggered if the sensor’s cover is opened) and base tamper (wall tamper – triggers if pried off its mounting surface). This prevents someone from defeating the sensor without the system knowing
  
• Long-Life Battery & Supervision: Uses a 3.6V lithium battery (1/2AA size) with typical 5–7 year life thanks to efficient two-way protocol. Sends supervisory check-ins and will report a low battery condition for proactive maintenance
  

Technical Specifications:

• Frequency: 902–928 MHz Two-Way (works with ELK Alarm Engine and M1XRFTWM setups). Fully encrypted communication with positive acknowledgment from panel
  
• Zones: Each sensor provides one zone of protection (reed switch for magnet).
• Magnet Gap: Rated for up to 3/4″ gap between sensor and magnet – suitable for most door/frame clearances
  
• Battery: One (1) 3.6V 1/2AA lithium battery (such as Tadiran or ER14250 type.
• Battery Life: ~7 years typical usage (depends on frequency of openings and two-way traffic)
  
• Dimensions: 3.4″ L × 0.71″ W × 0.8″ D (sensor); magnet approx. 1.5″ L × 0.57″ W × 0.6″ D for slim form. The small size allows installation on narrow frames and casements
• Mounting: Adhesive backing pre-applied on both sensor and magnet. Screw mounting is also possible (screws included). Ensure alignment arrow on sensor faces magnet within the recommended gap. Operating Temp 32–120 °F