diff --git a/vendor/dragino/lht65.js b/vendor/dragino/lht65.js
index 76cad8a068..f1c5a5221f 100644
--- a/vendor/dragino/lht65.js
+++ b/vendor/dragino/lht65.js
@@ -102,22 +102,30 @@ default:
 }
 
 function normalizeUplink(input) {
-  return {
-    data: [
-      {
-        air: {
-          location: "indoor",
-          temperature: input.data.TempC_SHT,
-          relativeHumidity: input.data.Hum_SHT,
-        }
-      },
-      {
-        air: {
-          location: "outdoor",
-          temperature: input.data.TempC_DS,
-        },
-        battery: input.data.BatV
+  var data = [];
+
+  if (input.data.TempC_SHT) {
+    data.push({
+      air: {
+        location: "indoor",
+        temperature: input.data.TempC_SHT,
+        relativeHumidity: input.data.Hum_SHT,
       }
-    ]
-  };
+    });
+  }
+
+  if (input.data.TempC_DS) {
+   var val = {
+    air: {
+      location: "outdoor",
+      temperature: input.data.TempC_DS
+    }
+  }
+  if (input.data.BatV) {
+    val.battery = input.data.BatV
+  }
+  data.push(val);
+  }
+
+  return { data: data };
 }
diff --git a/vendor/dragino/lse01.js b/vendor/dragino/lse01.js
index bc906fb882..dfae74a447 100644
--- a/vendor/dragino/lse01.js
+++ b/vendor/dragino/lse01.js
@@ -35,17 +35,37 @@ switch (input.fPort) {
 }
 
 function normalizeUplink(input) {
-  return {
-    data: {
-        air: {
-            temperature: Number(input.data.TempC_DS18B20),
-        },
-        soil: {
-          temperature: Number(input.data.temp_SOIL),
-          moisture: Number(input.data.water_SOIL),
-          ec: input.data.conduct_SOIL / 1000,
-        },
-        battery: input.data.Bat,
-      }
-  };
+  var data = {};
+  var air = {};
+  var soil = {};
+
+  if (input.data.TempC_DS18B20) {
+      air.temperature = Number(input.data.TempC_DS18B20);
+  }
+
+  if (input.data.temp_SOIL) {
+      soil.temperature = Number(input.data.temp_SOIL);
+  }
+
+  if (input.data.water_SOIL) {
+      soil.moisture = Number(input.data.water_SOIL);
+  }
+
+  if (input.data.conduct_SOIL) {
+      soil.ec = input.data.conduct_SOIL / 1000;
+  }
+
+  if (Object.keys(air).length > 0) {
+      data.air = air;
+  }
+
+  if (Object.keys(soil).length > 0) {
+      data.soil = soil;
+  }
+
+  if (input.data.Bat) {
+      data.battery = input.data.Bat;
+  }
+
+  return { data: data };
 }
diff --git a/vendor/dragino/lsn50-v2.js b/vendor/dragino/lsn50-v2.js
index 61fe744775..243b8b5ef3 100644
--- a/vendor/dragino/lsn50-v2.js
+++ b/vendor/dragino/lsn50-v2.js
@@ -199,16 +199,33 @@ default:
 }
 
 function normalizeUplink(input) {
-  return {
-    data: {
-      air: {
-          temperature: input.data.TempC_SHT,
-          relativeHumidity: input.data.Hum_SHT,
-      },
-      action: {
-        contactState: input.data.Door_status === "CLOSE" ? "closed" : input.data.Door_status === "OPEN" ? "open" : undefined
-      },
-      battery: input.data.BatV,
-    }
-  };
+  var data = {};
+  var air = {};
+  var action = {};
+
+  if (input.data.TempC_SHT) {
+    air.temperature = input.data.TempC_SHT;
+  }
+
+  if (input.data.Hum_SHT) {
+    air.relativeHumidity = input.data.Hum_SHT;
+  }
+
+  if (input.data.Door_status === "CLOSE" || input.data.Door_status === "OPEN") {
+    action.contactState = input.data.Door_status === "CLOSE" ? "closed" : "open";
+  }
+
+  if (Object.keys(air).length > 0) {
+    data.air = air;
+  }
+
+  if (Object.keys(action).length > 0) {
+    data.action = action;
+  }
+
+  if (input.data.BatV) {
+      data.battery = input.data.BatV;
+  }
+
+  return { data: data };
 }
diff --git a/vendor/dragino/lsn50v2-s31.js b/vendor/dragino/lsn50v2-s31.js
index dea7d1c7f5..88ba741875 100644
--- a/vendor/dragino/lsn50v2-s31.js
+++ b/vendor/dragino/lsn50v2-s31.js
@@ -100,16 +100,33 @@ default:
 }
 
 function normalizeUplink(input) {
-  return {
-    data: {
-        air: {
-            temperature: input.data.TempC_SHT,
-            relativeHumidity: input.data.Hum_SHT
-        },
-        action: {
-          contactState: input.data.Door_status === "CLOSE" ? "closed" : input.data.Door_status === "OPEN" ? "open" : undefined
-        },
-        battery: input.data.BatV,
-      }
-  };
+  var data = {};
+  var air = {};
+  var action = {};
+
+  if (input.data.TempC_SHT) {
+    air.temperature = input.data.TempC_SHT;
+  }
+
+  if (input.data.Hum_SHT) {
+    air.relativeHumidity = input.data.Hum_SHT;
+  }
+
+  if (input.data.Door_status === "CLOSE" || input.data.Door_status === "OPEN") {
+    action.contactState = input.data.Door_status === "CLOSE" ? "closed" : "open";
+  }
+
+  if (Object.keys(air).length > 0) {
+    data.air = air;
+  }
+
+  if (Object.keys(action).length > 0) {
+    data.action = action;
+  }
+
+  if (input.data.BatV) {
+      data.battery = input.data.BatV;
+  }
+
+  return { data: data };
 }
diff --git a/vendor/milesight-iot/em300-th.js b/vendor/milesight-iot/em300-th.js
index f0f9d7748d..f82bc10373 100644
--- a/vendor/milesight-iot/em300-th.js
+++ b/vendor/milesight-iot/em300-th.js
@@ -58,17 +58,27 @@ function Decoder(bytes, port) {
 }
 
 function normalizeUplink(input) {
-  return {
-    data: {
-      air: {
-          temperature: input.data.temperature,
-          relativeHumidity: input.data.humidity
-      },
-      battery: input.data.battery,
+    var data = {};
+    var air = {};
+
+    if (input.data.temperature) {
+        air.temperature = input.data.temperature;
     }
-  };
-}
 
+    if (input.data.humidity) {
+        air.relativeHumidity = input.data.humidity;
+    }
+
+    if (Object.keys(air).length > 0) {
+        data.air = air;
+    }
+
+    if (input.data.battery) {
+        data.battery = input.data.battery;
+    }
+
+    return { data: data };
+}
 
 /* ******************************************
  * bytes to number
diff --git a/vendor/milesight-iot/ws301.js b/vendor/milesight-iot/ws301.js
index aafd67643a..d1fdceb5b9 100644
--- a/vendor/milesight-iot/ws301.js
+++ b/vendor/milesight-iot/ws301.js
@@ -46,12 +46,17 @@ function Decoder(bytes, port) {
 
 
 function normalizeUplink(input) {
-    return {
-        data: {
-            action: {
-                contactState: input.data.door === "close" ? "closed" : input.data.door === "open" ? "open" : undefined
-            },
-            battery: input.data.battery,
-        }
-    };
+    var data = {};
+
+    if (input.data.door && (input.data.door === "close" || input.data.door === "open")) {
+        data.action = {
+            contactState: input.data.door === "close" ? "closed" : "open"
+        };
+    }
+
+    if (input.data.battery) {
+        data.battery = input.data.battery;
+    }
+
+    return { data: data };
 }
diff --git a/vendor/sensative/strips.js b/vendor/sensative/strips.js
index 5fe6191729..2392254932 100644
--- a/vendor/sensative/strips.js
+++ b/vendor/sensative/strips.js
@@ -192,12 +192,15 @@ function decodeUplink(input) {
 }
 
 function normalizeUplink(input) {
-	return {
-	  	data: {
-			air: {
-				temperature: input.data.temperature.value,
-			},
-		  	battery: input.data.battery
-		}
-	};
-  }
+    var data = {};
+
+    if (input.data && input.data.temperature && input.data.temperature.value) {
+        data.air = { temperature: input.data.temperature.value };
+    }
+
+    if (input.data && input.data.battery) {
+        data.battery = input.data.battery;
+    }
+
+    return { data: data };
+}