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Guys, I have seen some very cheap Z-wave devices at eBay... Please see link below http://www.ebay.com/sch/aixi-smart-home-security/m.html?item=122479369236&rt=nc&_trksid=p2047675.l2562 Ia anyone has tried these no brand devices? It looks like "original" copy of some famous smart home manufacturers . Would like to hear your opinion on that..... thanks
Hi! I would like to show a little DIY project I did lately to enhance the Z-Wave receiving possibilities of the power meter device from Aeon Labs (DSB28-ZWEU E2). The device is located in the electrical distribution box which is made of steel. I put a repeater in it and it worked for months flawlessly, but since 2 weeks it is no more integrated in the Z-Wave network (deleting and reincusion, manually mesh rebuild didn't work). (Be careful, this device is working with 230 Volts, I am an electrical engineer and know what I am doing. Only let professionals do this work!) So I opened the device and remove the internal antenna and mount an external into it: Dismantled device with the internal antenna To make an external antenna a GND pin is needed for the shield of the Koax cable. The cable is taken from an old external WiFi antenna. I isolated the shield with a 'shrinking tube' to build the antenna it is important to remove the outer shield weave exactly about 86 mm (which is lamda/4 of 868MHz) My first thought was to drill a hole in the steelbox to get the antenna outside of the box. But I don't like the idea, because the Box is located at my porch at the main entrance of my house -so everyone would see the ugly antenna... So I shove the 80 cm long antenna into the electro tube which leads the lines into the house. This works since 3 days perfect and I will report in the next few weeks if it is still working. I think this solution will work with every Z-Wave device (also with battery powered ones). Sometimes it could be a matter of a few zentimeters if a device is reaching the Z-Wave network and is working or not.
Guest posted a topic in Home AutomationHi. Now, we started to install clamp power meters from AEON. At the first view, it works really cool. When I turn on my fan, or boiler I see proper value of consumption. Because I know fan is 1800 Watts, and boiler about 2000 Watts. So value of current consumption looks realistic. But, our problem started when we checked consumption for 1 week. As additional info, we installed several devices for different customers, and all of them has their own hardware electric meters. And of course we wanted to see same value for z-wave meter, and usual hardware meter. But unfortunately (I don't know why) z-wave meter shows smaller values. I'm sorry for probably stupid question, but is it okay to see such result? 1. I have new meters with 1.8 firmware. 2. I tried to modify different parameters like update intervals and so on. 3. Double checked connection according to manual. 4. Difference between values - something like 200%.. 5. How is accurete your AEON meters? Have you compared calculated Watts/month with you electic bill? Thank you for reply.