diff --git a/src/devices/chuango.c b/src/devices/chuango.c
index 18bae7abf..9bac0225f 100644
--- a/src/devices/chuango.c
+++ b/src/devices/chuango.c
@@ -12,17 +12,18 @@
 /**
 Chuango Security Technology.
 
-likely based on HS1527 or compatible
+Likely based on HS1527 or compatible
 
 Tested devices:
-G5 GSM/SMS/RFID Touch Alarm System (Alarm, Disarm, ...)
-DWC-100 Door sensor (Default: Normal Zone)
-DWC-102 Door sensor (Default: Normal Zone)
-KP-700 Wireless Keypad (Arm, Disarm, Home Mode, Alarm!)
-PIR-900 PIR sensor (Default: Home Mode Zone)
-RC-80 Remote Control (Arm, Disarm, Home Mode, Alarm!)
-SMK-500 Smoke sensor (Default: 24H Zone)
-WI-200 Water sensor (Default: 24H Zone)
+- G5 GSM/SMS/RFID Touch Alarm System (Alarm, Disarm, ...)
+- DWC-100 Door sensor (Default: Normal Zone)
+- DWC-102 Door sensor (Default: Normal Zone)
+- KP-700 Wireless Keypad (Arm, Disarm, Home Mode, Alarm!)
+- PIR-900 PIR sensor (Default: Home Mode Zone)
+- RC-80 Remote Control (Arm, Disarm, Home Mode, Alarm!)
+- SMK-500 Smoke sensor (Default: 24H Zone)
+- WI-200 Water sensor (Default: 24H Zone)
+- newer DWC-102 additionally generates a cmd=12 signal on door/windows being closed
 
 Note: simple 24 bit fixed ID protocol (x1527 style) and should be handled by the flex decoder.
 
@@ -58,7 +59,7 @@ static int chuango_callback(r_device *decoder, bitbuffer_t *bitbuffer)
     case 0xF: cmd_str = "?"; break;
     case 0xE: cmd_str = "?"; break;
     case 0xD: cmd_str = "Low Battery"; break;
-    case 0xC: cmd_str = "?"; break;
+    case 0xC: cmd_str = "Closing"; break;
     case 0xB: cmd_str = "24H Zone"; break;
     case 0xA: cmd_str = "Single Delay Zone"; break;
     case 0x9: cmd_str = "?"; break;