DSC WS4920

1-Way 433 MHz Wireless Repeater

Average rating:

(based upon one review)

The DSC WS4920 is a wireless repeater for 433 MHz sensors. The sensor will send its signal to the repeater. The repeater will then send this signal out a second time to essentially double the range of the sensor. The repeater will provide support for up to 164 devices. Buy the WS4920 here.
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The DSC WS4920 is a wireless repeater for 433 MHz sensors. The device takes the signal sent out from a 433 MHz sensor and sends it out a second time. This will essentially double the sensor's range. Up to 164 different wireless devices can be supported by a single WS4290 repeater.

The purpose of the DSC WS4920 is to extend the range of wireless devices. Each wireless sensor sends out signals at a certain frequency to communicate with a security system. But unfortunately, this signal range is limited. It can also be reduced due to obstacles and the presence of large metal objects in the area. But with a wireless repeater, these problems and limitations can potentially be overcome.

The DSC WS4920 is specifically designed for legacy DSC 433 MHz Sensors. Some of these systems that support these sensors include the DSC Impassa and many of the older DSC PowerSeries Panels. A total of four different WS4920 devices can be programmed with a single alarm system, though any given sensor can only have its signal repeated on one occasion. In other words, you can't use two repeaters to further extend the range of a 433 MHz Sensor.

Other features of the WS4290 include a tamper switch to alert the system if someone tries to disable the device. The device will also alert the system whenever the backup battery is low and in need or replacing. The backup battery can keep the device powered on for up to 24 hours during an outage.

Brand: DSC

Great Repeater!
Submitted on 05/13/2020 Alarm Grid

The DSC WS4920 is a wireless repeater for 433 MHz wireless sensors that are frequently used with the DSC Impassa, the DSC PoweSeries Panels with added wireless receiver, and the 433 MHz Qolsys IQ Panel 2 Plus. The repeater allows for up to 164 different 433 MHz signals to be repeated. But you cannot repeat a single signal multiple times. The DSC WS4920 is excellent for overcoming range issues. Overall, we think the DSC WS4920 is a great product, and we give it a 5 Star rating.

There are many things to like about the DSC WS4920. For one, it can effectively double the wireless signal range of compatible sensors. You can also program the DSC WS4920 to a 433 MHz panel for supervision purposes. The module also includes a tamper switch so that the system can be alerted if anyone tries to open up or disable the repeater. You can use a backup battery to keep the DSC WS4920 powered on in the event of an electrical outage. A transformer comes included with the DSC WS4920.

But there are some downsides to the DSC WS4920 that should also be considered. One downside is that you can only repeat a wireless signal once using this device. You can technically have two different DSC WS4920 repeaters going in opposite directions from the panel, but you cannot repeat signals multiple times. Also, you will need to supply your own wiring to connect the transformer. The Honeywell LT-Cable works great for this purpose.And while the backup battery keeps the device powered on during electrical outages, you should keep in mind that you will need to replace the battery periodically. But these downsides are relatively minor, and they do not stop us from giving the DSC WS4920 a 5 Star rating.

Good: Doubles 433 MHz Range, RF Supervision, Tamper Switch, Supports Backup Battery, Transformer Included

Bad: Can Only Repeat Signal Once, Supply Own Wiring, Battery Must be Replaced Every Few Years

Bottom Line: 5 Stars

* Based on a 10% APR with 12 months financing. APR's will vary between 10% - 30% based on credit score and various factors.