With any Chuango Alarm System, all the compatible sensors and accessories can be grouped into one of the following four zones: 24-Hour Zone, Arm Zone, Home Zone, and Delay Zone. How sensors within the same zone will behave depends on the specific zone type.
24-Hour Zone is recommended for sensors such as water flood sensors WI-210. When they are triggered, the siren will sound, and push notifications will be sent regardless of the alarm mode they are in.
The door/window contact sensor DWC-102 is pre-assigned to Arm Zone.
Sensors in Arm Zone signal the hub to sound an alarm when they are triggered, and the hub is in Arm or Home Arm Mode.
Home Zone is recommended for sensors such as motion detectors.
In Home Arm Mode, detectors grouped in Home Zone will not respond when triggered.
You probably need some time to enter or exit from your home once you’ve armed or partially armed your Chuango WiFi Alarm OV-300 / LTE-400. Thus, you can group some sensors such as door/window contact sensors into Delay Zone.
You can find settings for Delay Zone under this link How to set a delay when entering or leaving for your Chuango WiFi Alarm OV-300/ LTE-400?