DSC WT4901

The DSC WT4901 Wireless Indoor Siren is excellent for providing an auxiliary siren away from the panel. It connects with a system wirelessly using the 433 MHz frequency. Even though a number of DSC panels support the 433 MHz RF, the WT4901 is only compatible with Alexor and Impassa systems.

The reason the WT4901 is only compatible with the Alexor and Impassa systems is due to the programming requirements for enabling the siren. The fields for programming the WT4901 simply do not exist in the older DSC PowerSeries panels, such as the PC1616 and PC1832. The WT4901 is capable of producing sounds at up to 85 dB. This is about as loud as a passing diesel truck. The device will respond along with the standard system siren to any alarm event. This includes any burglary or fire alarm that occurs.

The WT4901 is fully supervised by the alarm system, so the user will be alerted to any low battery, tamper activation, or loss of RF supervision that affects the WT4901. In addition to producing a siren, the WT4901 can also produce chimes for entry/exit doors and trouble condition alerts. There is also a button on the front of the WT4901 that can be used for testing the device. The device is powered using four AA batteries, and it has an average battery life of one (1) year. The device has an RF transmitting range of nearly 1,000 feet in open air.