x99percent

Are there other conditions or can you provide more context to what you're trying to accomplish? It seems odd to want to trigger on ANY value.

There are ways to do what you're talking about, but trying to catch *exactly* -5.00 is not the way to do it. Check for < -4.99 and use a delay...

Using a delay node (built into Node-RED) will get you that single trigger behavior. `[{"id":"997750e5.328f","type":"trigger-state","z":"c5dbadc8.392e8","name":"","server":"fce9a161.4cb4b","entityid":"sun.sun","debugenabled":false,"constraints":[{"id":"feci6yolmwl","targetType":"this_entity","targetValue":"","propertyType":"property","propertyValue":"new_state.attributes.elevation","comparatorType":"less_than","comparatorValueDatatype":"num","comparatorValue":"-4.99"}],"constraintsmustmatch":"all","outputs":2,"customoutputs":[],"x":320,"y":860,"wires":[["9119dbff.0bdc78"],[]]},{"id":"9119dbff.0bdc78","type":"delay","z":"c5dbadc8.392e8","name":"","pauseType":"rate","timeout":"5","timeoutUnits":"seconds","rate":"1","nbRateUnits":"20","rateUnits":"hour","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":true,"x":540,"y":860,"wires":[["48737504.d7ba2c"]]},{"id":"fce9a161.4cb4b","type":"server","z":"","name":"Home Assistant","url":"http://HA.IP.GOES.HERE:8123","pass":"PASSWORD"}]`

Spartan, I got it working from your code, but there were errors in api_current-state.js, poll-state.js, and server-events-state-changed.js.