Good idea.
Logs show that it sent a both command:
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:28 PM: info [name:power, value:41, type:power]
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:28 PM: debug description is read attr - raw: 55A4010B040A0B05292900, dni: 55A4, endpoint: 01, cluster: 0B04, size: 0A, attrId: 050b, encoding: 29, value: 0029
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:28 PM: info [name:switch, value:on, type:switch]
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:28 PM: debug description is catchall: 0104 0006 01 01 0140 00 55A4 00 00 0000 0B 01 0100
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:28 PM: info [type:switch, name:switch, value:on]
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:28 PM: debug description is on/off: 1
b7cc2b30-239d-4d28-b9fb-00a34ff5a116 8:36:27 PM: debug Both called
Also note that this time the “security/alert with sirens” app logged messages:
54a5c0f6-fe96-4ce2-98cb-119a95a0f8b0 8:36:44 PM: trace resetTrigger()
54a5c0f6-fe96-4ce2-98cb-119a95a0f8b0 8:36:44 PM: debug INITIALIZED, settings: [sirenDevices:[Alarm Bell], sirenDuration:5, triggerResetTime:1456364204372, contactSensors:[Front Door, Carport Door, MBR Exterior Door, Basement Stairway Entry Door, Shed Door, Patio Door]]
54a5c0f6-fe96-4ce2-98cb-119a95a0f8b0 8:36:44 PM: debug Updated with settings: [sirenDevices:[Alarm Bell], sirenDuration:5, triggerResetTime:1456364204372, contactSensors:[Front Door, Carport Door, MBR Exterior Door, Basement Stairway Entry Door, Shed Door, Patio Door]]
54a5c0f6-fe96-4ce2-98cb-119a95a0f8b0 8:36:27 PM: debug scheduling secondaryActionHandler in 5 minutes
54a5c0f6-fe96-4ce2-98cb-119a95a0f8b0 8:36:27 PM: debug actionTriggered
54a5c0f6-fe96-4ce2-98cb-119a95a0f8b0 8:36:27 PM: info primaryActionHandler(contact: open), triggerResetTime: 1456362996508, state.lastTriggered: null
It looks to me like SHM is never triggering the security/alert with sirens handler with this other device.