Low water alert?

[AZfishkeeper]

I have the optical level sensor and mount. I was going to use it for an ATO system. But instead I went with a Tunze ATO. So now I have this sensor available for a me to repurpose it. I would like to utilize the sensor as a low water sensor in my ATO tank.

So how do I set this sensor up to give me an alarm when my ATO tank water gets to low?

Presently I have the sensor mounted underwater at the point I would like to know to refill my ATO tank.

The alarm would have to go off when the sensor is no longer covered by water.

[Thilo]

You could use the ATO operation mode with a max. on-time of 1s.

[AZfishkeeper]

Thanks for the fast response, however I'm new to GHL programing can you please provide more details on what you are suggesting?

[Thilo]

Go to the level settings page, edit a control circuit and set following settings:
Operation mode: Auto top off
Maximum on-time: 1s
Reset error automatically: true (or false if you want to manually reset it)
Always active: true
Sensor 1: Select the level sensor

[AZfishkeeper]

PERFECT, thank you very much!