This is product is discontinued and replaced with ZSE11.
The 4-in-1 has A LOT of information to send to the hub, let's make sure it has a strong connection to do that!
The best way to do that is to have a robust Z-Wave mesh network. If you only have a few Z-Wave devices added to your hub, and your ZSE40 is installed far away from the hub and those devices, then it could have trouble staying connected to the hub. We would recommend trying a Z-Wave signal repeater between your hub and 4-in-1 sensor to help extend the range and build the network.
Signal repeaters include any non-battery powered Z-Wave devices installed in locations where there aren't a lot of other signal repeating Z-Wave devices so that the hub can form reliable communication routes to all the devices in your network. The repeater can be any smart plug or switch, like the ZEN25 Double Plug or ZEN15 Power Switch, or a dedicated Z-Wave signal repeater, like this one here.
Repeaters may not be needed if you've got an extensive network of Z-Wave devices. But if your ZSE40 is having issues staying connected to your hub, then you may need to try a different location within the hub's range, adding a repeater, or relocating an existing one in your house to help with any range or communication issues. If your 4-in-1 sensor is within range and in an area with other signal extenders, and still having problems, then these other hub-specific troubleshoots could be worth trying.
We'll be happy to help if you've got any or questions or issues with your ZSE40 - just send us a message!