Well @sparkydave that was a perfect answer. Thank you. FWIW, I elected to go with the 99111 model (https://www.brilliantlighting.com.au/product/smart-wifi-ac-fan-remote-9c0224), that exchanges the hand held remote for a wall plate version of the same thing. Avoids the inevitable event of having to shout āWHO TOOK THE REMOTEā when entering the room.
Anyone here bought gear from Smart Guys Australia ?
Looking at the IoTaWatt mains monitor from them, want to make sure they are a reliable supplier.
Thanks anyone.
I want to monitor energy on our 3 phase A/C but solutions like iotawatt are $150+ to achieve this. Shelly 3EM doesnāt seem available in Aus and also very expensive. It looks to be a tuya PC321-Z-TY.
edit: looks like the price shown is just the gateway and the meter is out of stock
Not seen that monitor before.
Thoughts are, only 3 CT inputs, I need 7 CTās to fully monitor my loads, so Iād need 2.3x Units, so back to over $300 AU
Thats correct - you power it through a USB Wall Wart (5v) and you put an AC transformer that you purchase from Jaycar into an inlet that is used to monitor the voltage of the mains incoming
Once this is done the CT clamps are placed around the relevant wire circuits - active line only - which by rights (legally) should be done by a qualified electrician.
I tend to get mine from bunnings. I stick to better named brands such a Duracell also.
IKEA 2032 batteries seem to work well also.
I figure the small premium in cost for a ābetterā battery means less stuffing around trying to work out why the device has lights on but wonāt connect scenarios. I have also be burnt to many times by cheap coin cell batteries.
In saying that, I use Amazon to buy for the one million random obscure coin cell batteries that my children a toys seem to run on.
Poor quality coin cell batteries may work initially but in my experience can just stop working without showing any significant voltage drop (battery level).
I use aqara temperature sensors in my fridges and freezers as the Duracell 2032 batteries work well. Other brands have been hit and miss.
I have considered looking into industrial suppliers (blackwoods etc) as you may be able to get bulk and reasonable quality.
I would would say understand the target device, ease of access, what happens if it stops working and tailor the price to that. Best product you can afford for the scenario.
Good point - making sure it is compliant is almost as important as if it actually works well.
Iām just looking for a single 3 phase load monitor that that isnāt overkill, as I already have whole of house consumption monitoring with my enphase solar.
An open circuit CT is quite a dangerous thing because it must satisfy the ampere-turns relationship. If the CT is connected around an active conductor but the secondary terminals are not connected, the current will want to flow somehow - whether it breaks down the insulation or arcs at the terminals. This induces very hazardous voltages at the terminals.
The rules of working with CTs are simple: always on a deenergised circuit, and never open circuit. Thatās why itās important that itās installed by someone qualified though.
Always laugh when i see these types of ānanny stateā arguments by unqualified people. I was reading a thread on Whirlpool recently where someone recommended cutting strands out of a 2.5mm cable so it fits into a device with a small terminals.