Voltage Loss Detector

[Kevo1961]

Is there a device or something that would alert me of loss of power on a specific power circuit. Currently using Eisy 5.8.4 and mostly Insteon.

[paulbates]

Is there a circuit nearby the one you want to monitor that would not be affected and stay on? Is the device on the monitored circuit always drawing power?

I use a Functional Devices RIBXTGA power sensor connected to an Insteon iolinc to monitor my sump pump going on and off.  It's power on/off is caught within in the eisy in around 1 second.

This set up could be used to detect / notify of an individual circuit going down, but the iolinc would need to be plugged into a different circuit that would not lose power. It takes a little work to get it installed and calibrated, but is extremely reliable.
 

Edited Monday at 01:08 PM by paulbates

[Guy Lavoie]

Another trick could be to have the monitored circuit power a small electromagnet of some kind, and have that next to a Insteon open / close sensor, such that the contacts on the sensor reed switch would open when the magnetic field stops due to power failure. It has the advantage of being battery powered if a separate reliable power source isn't nearby.

[IndyMike]

I am using a Zooz ZAC38 (Z-waver) repeater to monitor a problem GFCI circuit for nuisance trips.  The device has battery backup and informs my HomeAssistant install when AC power drops out.

@Techman is using the same device on the EISY, so it is supported.  https://forum.universal-devices.com/topic/44418-anybody-tried-the-new-zooz-zac38-repeater-with-power-outage-alerting/  

[elvisimprsntr]

Inductive current sense relay. They come in two flavors. NO and NC.

https://www.amazon.com/dp/B07SFWWPP7

I have one wired to an Elk zone to detect when my video doorbells are pressed