Why not just have a proper camera and a door bell, use an alarm input if you like. I'm amased that anyone needs this doorbell crap much less wants one. Put a camera at the proper height and don't fall for the marketing
you would need a developer / coder to write the firmware. Also most people would want the approval to be 3rd party certificated. |This costs a lot.
the unapproved market probably wouldn't need this but you would need to meet the component standards of EN
From a recent thread re pyronix having rf issue with led street lighting.
There was a mention of dual channel helping this issue? Anyone else having rf issues with different gear on led lights?
Moved discussion to trade
iirc you cant. When I used to fit the 700l I used to fit a pot to the main board as a mod. Unless the 800l had one as std. You could put a resister in series with the speaker but that would lower the alarm volume as well