DSC WS4920 - 1-Way 433 MHz Wireless Repeater Reviews
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