Heiman Gas Detector Zigbee 3.0

intertesting discovery
on the older version of this device i can set the check in time and it works fine i have tested 2 minutes 10 minutes 30 minutes and an hour and it works.

on the newer 3.0 ha version i can set it say to 2 minutes ofr 5 minutes and it works.. anything up to 1/2 hours.. so i know the parameter is working.. sometimes it takes one report before it settles on the 2nd report on the new time span,]
however, setting it to anything over 1/2 hour does not work apparently for that version 1/2 hour is the max.

i wish heiman would document the parameters and ranges somewhere. i cannotfind any documentation other that setup and the lights.