What type of sensor did you attach to it? Fibaro Implant, a door/window sensor or other smart relay, etc. I am reading that this current sensor is not a dry contact and there might be some voltage leak, and also that there must be a load across the terminals for it to function.
What I am basically trying to accomplish is to have the SmartThings app notify me when either of my two circulator pumps that are part of my boiler system are running or not. They are 110V pumps and probably draw under 1A when running. One is for the house hot water baseboard and one is for the indirect hot water heater. I just want to see how many times a day each one turns on and off all day.
That looks interesting… just it will be a gamble if it works on SmartThings. Isn’t all the Tuya Zigbee stuff hit or miss as far as being recognized correctly by SmartThings?
Got it. I like it, it just might not be what I am looking for in this particular scenario. I don’t need to monitor the usage, I just need to know whether or not each pump is running.
I think the challenge will be that the CT clamps I’ve seen are designed to be whole house monitoring so they are expected to be placed on each of the live phase wires. Since, the pumps are just 110v, you only have a single phase.
This looks similar to the one that was posted above and seems to be meant for monitoring a single phase load. Nice thing is you can buy it on Amazon and if it doesn’t end up working with ST, you can return it.
With this and virtual contact sensors, you should be able to create Routines that turn the virtual sensor on/off based on current draw. Then you could use ConstantGraph to graph out the usage or record the events to Googlesheets.
Agreed if both the line and neutral are inside insulation. But, if the pump has individual wires in a conduit for example, might be able to clamp just the live wire.
The one I posted is Wi-Fi so it might not work with ST since not all Tuya devices come over to ST with the SmartLife cloud integration. There are similar Zigbee models on Amazon as well.
Interesting to see this thread, @sonnaps, as I just received one of those devices from Amazon. I’m planning to hook up the relay contacts to a simple contact (door) sensor I have lying around and use it to let me know if the sump pump in the basement runs…
The Aeotec Pico Switch has power metering (live volts and watts readings plus accumulated kWh), and all of these are available as a trigger in SmartThings. Would that do?
(edit: Just saw you can’t really get to the wires, so nevermind. I’m not aware of any clamp style meters with native ST support though.)
(2nd edit: Aeotec do have Z-Wave clamp meters w/ 1, 2, or 3 clamps, product is ZW095, edge drivers available from Aeotec.)
@sonnaps you were right first time, and gave yourself the best advice. I use this to monitor when the cooker is on, it’s very simple, and as you said, I just connect a open close sensor to the contacts.
Cool, I think this is the way I want to go at least to experiment. Can you tell me what type of open/close sensor you are using specifically? Does it have dry contact inputs or did you do something special to it?
Nothing special, the current sensing switch has dry contacts, so you can use any open close sensor, Aeotec, frient etc etc I’ve been using it for years like this.
Yeah, but I mean are you cracking open the door/window sensor and soldering to some points? The only open close sensor I know of that has terminals to attach an external magnetic switch is the Aeotec Door/Window Sensor 7 Pro which is kind of pricey.
Ecolink Contact Sensor has screw terminals for the contact. I use it for my front gate but with an overhead garage door sensor instead of the accompanying magnet.
The Aeotec Sensor 7 has screw terminals as you mention (doesn’t have to be the Pro version).
