New Ring Smoke / CO2 Listener - Testing

Just got a new Smoke / CO2 Listener - Ring successfully adds sensor but doesn’t pass the test (using a Nest Protect - which is pretty loud). I followed the instruction for “test mode” - can’t get it to work. Any ideas? Incompatible with Nest’s “tone”?

Hi @hgpilot. The Ring Smoke And CO Listener is designed to “listen” for temporal 3 and temporal 4 tones. If you are using an alarm that produces anything other than those tones, the Listener will not be able to “hear” it. Do you know what type of tones your Nest Product produces?