Hello @Jason Meader
The attributes were created by me through the equipment MIB.
In these attributes, I monitor a voltage value, and a unique way to get that result was by creating a clock.
There are several devices with different Mibs, but the values are the same for all, example Attribute (0xfff0018f) <127, generates a Major alarm.
I thought it would be possible to measure all attributes at once in the same String.
String = ATTR (0xfff0018f) AND (0xfff00192) AND ... ... ..