diff --git a/vendors/elsys/codecs/test_decode_elsys.json b/vendors/elsys/codecs/test_decode_elsys.json
index b99b2d4..bfee1ef 100644
--- a/vendors/elsys/codecs/test_decode_elsys.json
+++ b/vendors/elsys/codecs/test_decode_elsys.json
@@ -134,5 +134,20 @@
         "occupancy": 2
       }
     }
+  },
+  {
+    "name": "Test decode EMS Lite payload",
+    "input": {
+      "fPort": 5,
+      "bytes": [1, 0, 215, 2, 45, 18, 1, 7, 14, 24]
+    },
+    "expected": {
+      "data": {
+        "temperature": 21.5,
+        "humidity": 45,
+        "waterleak": 1,
+        "vdd": 3608
+      }
+    }
   }
 ]
diff --git a/vendors/elsys/devices/ems-desk.toml b/vendors/elsys/devices/ems-desk.toml
new file mode 100644
index 0000000..348ef19
--- /dev/null
+++ b/vendors/elsys/devices/ems-desk.toml
@@ -0,0 +1,16 @@
+[device]
+id = "e6c7d8e9-0a1b-4234-c567-89abcdef0123"
+name = "EMS Desk"
+description = "Indoor desk occupancy sensor with temperature, humidity, and IR occupancy detection."
+
+[[device.firmware]]
+version = "1.0"
+profiles = [
+    "EU868-1_0_4.toml",
+    "US915-1_0_4.toml",
+]
+codec = "elsys.js"
+
+[device.metadata]
+product_url = "https://www.elsys.se/en/ems-desk/"
+documentation_url = "https://elsys.se/public/datasheets/EMS_Series_LoRa_Datasheet.pdf"
diff --git a/vendors/elsys/devices/ems-door.toml b/vendors/elsys/devices/ems-door.toml
new file mode 100644
index 0000000..3c6deff
--- /dev/null
+++ b/vendors/elsys/devices/ems-door.toml
@@ -0,0 +1,16 @@
+[device]
+id = "d5b6c7d8-9f0a-4123-b456-789abcdef012"
+name = "EMS Door"
+description = "Indoor door activity sensor with accelerometer and reed switch."
+
+[[device.firmware]]
+version = "1.0"
+profiles = [
+    "EU868-1_0_4.toml",
+    "US915-1_0_4.toml",
+]
+codec = "elsys.js"
+
+[device.metadata]
+product_url = "https://www.elsys.se/en/ems-door/"
+documentation_url = "https://elsys.se/public/datasheets/EMS_Series_LoRa_Datasheet.pdf"
diff --git a/vendors/elsys/devices/ems-lite.toml b/vendors/elsys/devices/ems-lite.toml
new file mode 100644
index 0000000..1c7a7f3
--- /dev/null
+++ b/vendors/elsys/devices/ems-lite.toml
@@ -0,0 +1,16 @@
+[device]
+id = "a6b18c2d-94e5-4f67-b892-123456789a01"
+name = "EMS Lite"
+description = "Indoor climate and water leak sensor measuring temperature, humidity, and water leak detection."
+
+[[device.firmware]]
+version = "1.0"
+profiles = [
+    "EU868-1_0_4.toml",
+    "US915-1_0_4.toml",
+]
+codec = "elsys.js"
+
+[device.metadata]
+product_url = "https://www.elsys.se/en/ems-lite/"
+documentation_url = "https://elsys.se/public/datasheets/EMS_Series_LoRa_Datasheet.pdf"
diff --git a/vendors/elsys/devices/ems.toml b/vendors/elsys/devices/ems.toml
new file mode 100644
index 0000000..0c58f8c
--- /dev/null
+++ b/vendors/elsys/devices/ems.toml
@@ -0,0 +1,16 @@
+[device]
+id = "c4a5b6d7-8e9f-4012-a345-6789abcdef01"
+name = "EMS"
+description = "Indoor multi-sensor with temperature, humidity, accelerometer, reed switch (door activity), and water leak detection."
+
+[[device.firmware]]
+version = "1.0"
+profiles = [
+    "EU868-1_0_4.toml",
+    "US915-1_0_4.toml",
+]
+codec = "elsys.js"
+
+[device.metadata]
+product_url = "https://www.elsys.se/en/ems/"
+documentation_url = "https://elsys.se/public/datasheets/EMS_Series_LoRa_Datasheet.pdf"
diff --git a/vendors/elsys/profiles/EU868-1_0_4.toml b/vendors/elsys/profiles/EU868-1_0_4.toml
new file mode 100644
index 0000000..670c176
--- /dev/null
+++ b/vendors/elsys/profiles/EU868-1_0_4.toml
@@ -0,0 +1,25 @@
+[profile]
+id = "d13fcde4-30bc-4671-99ce-ccaed062a62d"
+vendor_profile_id = 0
+region = "EU868"
+mac_version = "1.0.4"
+reg_params_revision = "RP002-1.0.3"
+supports_otaa = true
+supports_class_b = false
+supports_class_c = false
+max_eirp = 14
+
+[profile.abp]
+rx1_delay = 0
+rx1_dr_offset = 0
+rx2_dr = 0
+rx2_freq = 0
+
+[profile.class_b]
+timeout_secs = 0
+ping_slot_nb_k = 0
+ping_slot_dr = 0
+ping_slot_freq = 0
+
+[profile.class_c]
+timeout_secs = 0
diff --git a/vendors/elsys/profiles/US915-1_0_4.toml b/vendors/elsys/profiles/US915-1_0_4.toml
new file mode 100644
index 0000000..e37eb60
--- /dev/null
+++ b/vendors/elsys/profiles/US915-1_0_4.toml
@@ -0,0 +1,25 @@
+[profile]
+id = "d678f9cf-95cb-4aa5-b73e-3117697c2a5c"
+vendor_profile_id = 0
+region = "US915"
+mac_version = "1.0.4"
+reg_params_revision = "RP002-1.0.3"
+supports_otaa = true
+supports_class_b = false
+supports_class_c = false
+max_eirp = 20
+
+[profile.abp]
+rx1_delay = 0
+rx1_dr_offset = 0
+rx2_dr = 0
+rx2_freq = 0
+
+[profile.class_b]
+timeout_secs = 0
+ping_slot_nb_k = 0
+ping_slot_dr = 0
+ping_slot_freq = 0
+
+[profile.class_c]
+timeout_secs = 0
diff --git a/vendors/elsys/vendor.toml b/vendors/elsys/vendor.toml
index 7a7dbe7..5b1ed13 100644
--- a/vendors/elsys/vendor.toml
+++ b/vendors/elsys/vendor.toml
@@ -3,6 +3,10 @@ id = "a1b2c3d4-5e6f-7a8b-9c0d-e1f2a3b4c5d6"
 name = "Elsys"
 ouis = ["fc0fee"]
 devices = [
+    "ems-desk.toml",
+    "ems-door.toml",
+    "ems-lite.toml",
+    "ems.toml",
     "ers-eye-lna.toml",
     "elt-2-hp.toml",
 ]