You will probably want to look at this topic. I had similar misconceptions about what the different sensors would do and made the same assumptions you have. I was using the other open close (reed sensor vs. plunger sensor) but the situation is probably the same. In attached links in the discussion I link to above you will find the .xml file that defines what the binding knows about the different insteon devices.
Another way you can probably find out some of this is to look in your openhab.log (depending on how/when you installed it may be in different places but mine is located: /var/log/openhab2/openhab.log). When you specify a capability that an items does NOT have, the binding logs the known capability - note this only happens at start up. This example below is for an 8 button keypad dimmer that I have referenced as having a “dimmer” capability that apparently is not in the list:
:2016-12-30 16:52:47.848 [ERROR] [g.insteonplm.InsteonPLMActiveBinding] - item dm8TopStairs references unknown feature: dimmer, item disabled! Known features for F00.00.16 are: fastonoff, keypadbuttonB, keypadbuttonC, keypadbuttonD, keypadbuttonE, keypadbuttonF, keypadbuttonG, keypadbuttonH, lastheardfrom, loaddimmer, manualchange, rampdimmer.
Hope this helps.