diff --git a/Firmware/README.md b/Firmware/README.md
index 68b2248..7a9939e 100644
--- a/Firmware/README.md
+++ b/Firmware/README.md
@@ -25,6 +25,10 @@ function Decoder(bytes, port) {
     // We always have Battery Voltage (uint8_t)
     decoded.v = (bytes[0] * 20) / 1000.0;
 
+    // Alarm Triggered (uint8_t)
+    if (bytes.length == 2)
+      decoded.a = bytes(1);
+
     // Temperature (int32_t)
     if (bytes.length >= 5)
       decoded.t = ((bytes[1]) | (bytes[2] << 8 ) | (bytes[3] << 16 ) | (bytes[4] << 24)) / 100.0;