Dsc WS4939 Wireless 4-button Key Fob 433 Mhz

Product Description

The DSC WS4939 is a 433 MHz wireless four-button key fob designed for use with compatible DSC security systems. It allows users to remotely trigger system functions from a convenient handheld device, eliminating the need to interact directly with a keypad for common commands. The fob transmits on the 433 MHz frequency band and supports multiple functions mapped across its four buttons. Security system technicians and alarm installers typically handle programming and enrollment of this device into the host panel.

The WS4939 is suited for residential and light commercial security installations where wireless key fob access control is preferred. It is enrolled into a DSC wireless receiver or compatible control panel and is typically used to arm, disarm, or trigger auxiliary outputs depending on panel configuration. The compact form factor makes it practical for end users who require quick, portable control of their security system without accessing a fixed keypad.

Key Features

• Operates on the 433 MHz wireless frequency for reliable transmission range
• Four-button layout supports multiple programmable system functions
• Wireless design eliminates hardwired connections to the control panel
• Compact key fob form factor for portable everyday carry
• Designed for enrollment into DSC wireless-compatible receivers and panels

Compatibility

Designed as an OEM-style wireless key fob for use with DSC security systems equipped with a compatible 433 MHz wireless receiver module.

Installation Notes

Installation and enrollment should be performed by a licensed alarm or low-voltage security technician familiar with DSC panel programming. Before enrolling or removing the device, disarm the security system and follow the panel manufacturer's zone enrollment procedure. No hardwiring is required, but proper zone assignment and button-function mapping must be completed through the panel programming menu. Refer to local low-voltage and alarm licensing codes that apply in your jurisdiction.