The DSC WS4939 is a 4-button wireless key fob that provides convenient and portable control for your security system. With a compact design and multifunctional clip, it can be easily attached to your keychain or clothing for quick access.

The WS4939 key fob features four programmable buttons that can be configured to perform different functions, such as arming or disarming the system, activating a panic alarm, or controlling home automation devices. It also has a low battery indicator that alerts you when the battery needs to be replaced.

This key fob uses 433 MHz wireless technology to communicate with your DSC security system, providing reliable and secure operation. It has a range of up to 150 feet in open air, allowing you to control your system from a distance.

Features

• 4 programmable buttons
• Multifunctional clip for easy attachment
• LED indicator for transmission confirmation and battery status
• Long-life lithium batteries included (CR2032)
• Wireless range of up to 1000 feet (305 meters) in open air
• Compatible with PowerSeries and Alexor security systems
• One-second signal transmission delay to prevent false alarms
• Water-resistant design for outdoor use
• Dimensions: 2.2″ x 1.5″ x 0.5″ (5.6cm x 3.8cm x 1.3cm)
• Operating temperature range: 14°F to 131°F (-10°C to 55°C)