diff --git a/src/payload.cpp b/src/payload.cpp
index 06bbf5bd..b565c3b4 100644
--- a/src/payload.cpp
+++ b/src/payload.cpp
@@ -319,14 +319,20 @@ void PayloadConvert::addByte(uint8_t value) {
 
 void PayloadConvert::addSDS(sdsStatus_t sds) {
 #if (HAS_SDS011)
+// value of PM10
 #if (PAYLOAD_ENCODER == 3) // Cayenne LPP dynamic
-    buffer[cursor++] = LPP_PARTMATTER_CHANNEL;    // for PM10 and PM25
+    buffer[cursor++] = LPP_PARTMATTER10_CHANNEL;    // for PM10 
 #endif
     buffer[cursor++] = LPP_LUMINOSITY; // workaround since cayenne has no data type meter
-    buffer[cursor++] = highByte(sds.pm10);
-    buffer[cursor++] = lowByte(sds.pm10);
-    buffer[cursor++] = highByte(sds.pm25);
-    buffer[cursor++] = lowByte(sds.pm25);
+    buffer[cursor++] = highByte((uint16_t)(sds.pm10 * 10));
+    buffer[cursor++] = lowByte((uint16_t)(sds.pm10 * 10));
+// value of PM2.5
+#if (PAYLOAD_ENCODER == 3) // Cayenne LPP dynamic
+    buffer[cursor++] = LPP_PARTMATTER25_CHANNEL;    // for PM2.5
+#endif
+    buffer[cursor++] = LPP_LUMINOSITY; // workaround since cayenne has no data type meter
+    buffer[cursor++] = highByte((uint16_t)(sds.pm25 * 10));
+    buffer[cursor++] = lowByte((uint16_t)(sds.pm25 * 10));
 #endif  // HAS_SDS011
 }