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Light-Motion combination switch

Light-Motion combination switch

GE/Jasco released a new Z-wave certified switch in Dec 2016, which was made available on Amazon in April 2017. There was no press release or announcement and many people don’t even know that such a switch even exists hence my blog posting here.

The smart hub community quickly jumped on that in Feb 2017 requesting support and given the wide support of GE switches across many smart home hubs, this switch has been integrated rather quickly (Pulse, Trane, Wink, Nexia, Honeywell, HomeSeer, Smart Security, Harmony, Vera, Smartthings and Connect).

What’s the use case for this switch? Before this switch was released you could buy a Z-wave light switch (on/off or dimmer) and then you had to buy a motion sensor separately. As an example you would install this switch in your bathroom/toilet room and then you had to install a motion sensor somewhere in the same room.

Unless you have a power outlet close and a clunky power supply in that outlet to power your motion sensor, you would have to buy a battery operated Z-wave motion sensor or use a USB outlet and wire the motion sensor with a USB cable. Most people went with battery operated motion sensors which have a standard of 4 min timeout setting to preserver battery life.

This setup required you to purchase the light switch and the motion sensor separately which costs anywhere from $35 to $45 for the switch and $20 to $35 for the motion sensor for a total of $55 to $80 dollars.The new GE26933 combination switch is selling for $55 dollars which is a very reasonable price for a combination of both.

The beauty of having such a combination switch is that the motion sensor is not battery operated and the hassle with wakeup and timeout settings doesn’t apply. As a result you can configure this switch on a very granular level and you don’t have to worry about wires coming from your motion sensor to your outlet trying to have a permanently powered motion sensor like the GE 6 in 1 sensor, which is a great product by itself.

You have a single switch combining motion and light switch into one device. In addition it is a dimmer so you can adjust the brightness above and below the actual motion window of the switch. This switch also supports “Last level” which means when you use the dimming function to lower the brightness to e.g. 50% the next time you power on those lights, it will be at 50%.

This switch comes with a variety of options you can configure via Z-wave settings. You have 19 parameter settings you can use to adjust this switch ranging from Timeout duration e.g. 5 min (default) to 30 min or no timeout, motion sensitivity from high to low with medium being the default, Light sensing on or off to the most important parameter which is operation mode with manual, vacancy or occupancy. You can find more details for those parameters hereĀ https://products.z-wavealliance.org/products/2108/configs

For smart home hub integration you switch to manual and your smart home hub will detect 2 Z-wave devices. The actual light switch and the motion sensor enabling you to create now scenes or events based on those devices or other devices from your smart home hub.

 

Most bathroom/toilet rooms have a fan switch right next to the light switch. You can now configure an event where you specify things like

if motion detected

turn on lights and turn on fan

for 5 minutes

and then turn off lights and fan

When you integrate your GE26933 switch into your smart hub system make sure to properly save those parameters e.g. Homeseer settings on the picture. Even before you set those parameters your smart hub system should find 2 devices (switch and motion) but motion will not change status as the default parameter setting for this switch is occupancy with 5 minutes.

The other benefit of having a permanently powered motion sensor is not having to deal with any wakeup and timeout values. You can go as low as 1 minute intervals for this light switch. If your switch is facing the restroom toilet with a setting of 1 minute unless the person sitting on the toilet doesn’t move for 60 seconds, will reset the timeout value continuously but again this is adjustable up to 30 min as needed.

In summary, many smart home owners were requesting for years a combination switch from the vendors and GE finally delivered and hopefully more vendors will follow. This switch can be used in many use cases ranging from garage lighting leveraging the daylight sensor to restrooms with no light or window allowing you to configure your room and lighting what fits your needs the best.

The price is very reasonable and totally justifies switching from two separate devices to a single device with the additional benefit of not having to deal with batteries and wires and two separate devices. Great addition to the Z-wave family of light switches from GE and I hope my blog post sparked some ideas for you on how to improve your smart home even further. Personally I already installed two of those at my home and I am going to add more.

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