Can one remote be used for all your wireless products?

Yes in SK6 Series! 

No in QH Series! We don't have remote for SK602(G) and SK602-1(G).

All of our wireless receiver products in SK6 Series are compatible with the SK629 remote controls, or the one included in bundle.

Our receivers are: dialers, alerts, siren, and socket.

All our sensors are RF transmitters, they cannot control by "Remote Controls" devices. 

Special note about the SK635 smart power outlet:

To use a remote to turn on the SK635 socket you have to press the panic button. So if your remote is also paired to one of our alarms, it will set off the alarm. 

If you’re going to use remotes with both the SK635 power socket and an alarm, we recommend using two different remotes.

Products in SK6 Series and QH Series:

Use Series Filter: SK6 or QH on the left hand menu.