I'm looking for a solution to alert and record based on contact closure to monitor when someone enters through a gate. Any suggestions?
How does that do recording? It seems just to be a set of USB controlled relays.This device will probably do what you want, there may also be other ways to do this!
It does not do any recording, it is nothing more than an input module that can trigger BI to record or alert etc. The first one has the ability to take inputs and do outputs from BI, the second one only does input, the inputs are isolated so that there is no direct signal into the computer!How does that do recording? It seems just to be a set of USB controlled relays.
Unless I've misunderstood the spec.
Many cameras, and more NVRs, have the ability to trigger recordings from wired alarm inputs.
With the Shelly device one would be setup at the gate to sense the contact state while the other would be at the NVR to change states accordingly.How does that do recording? It seems just to be a set of USB controlled relays.
Unless I've misunderstood the spec.
Many cameras, and more NVRs, have the ability to trigger recordings from wired alarm inputs.
I was testing one and the signal to BI was virtually instantaneous from what I could see, I did not do any definitive testing of the actual delay, but I am sure it was not longer than about 1 second!Bruce_H, thanks for the suggestion. That looks as plug-n-play are you can get. Is there any delay for the alert when using this on BI?