diff --git a/docs/devices/BM1in1.md b/docs/devices/BM1in1.md
new file mode 100644
index 00000000..e33a2182
--- /dev/null
+++ b/docs/devices/BM1in1.md
@@ -0,0 +1,12 @@
+# Blue Maestro Tempo Disc Temperature
+
+|Model Id|[TD1in1](https://github.com/theengs/decoder/blob/development/src/devices/BM1IN1_json.h)|
+|-|-|
+|Brand|BlueMaestro|
+|Model|Tempo Disc|
+|Short Description|Red temperature sensor, also available as IP67 waterproof|
+|Communication|BLE broadcast|
+|Frequency|2.4Ghz|
+|Power source|CR2032 (IP67 model non-changeable)|
+|Exchanged data|temperature, battery|
+|Encrypted|No|
diff --git a/src/decoder.h b/src/decoder.h
index bc3186c9..361a7012 100644
--- a/src/decoder.h
+++ b/src/decoder.h
@@ -90,6 +90,7 @@ class TheengsDecoder {
     SHT4X,
     SCD4X,
     SMARTDRY,
+    BM1IN1,
     BM3IN1,
     BM4IN1,
     MS_CDP,
diff --git a/src/devices.h b/src/devices.h
index a9999491..4ad65c12 100644
--- a/src/devices.h
+++ b/src/devices.h
@@ -71,6 +71,7 @@
 #include "devices/T301_json.h"
 #include "devices/iBeacon_json.h"
 #include "devices/iNodeEM_json.h"
+#include "devices/BM1IN1_json.h"
 #include "devices/BM3IN1_json.h"
 #include "devices/BM4IN1_json.h"
 #include "devices/BPARASITE_json.h"
@@ -123,6 +124,7 @@ const char* _devices[][2] = {
     {_SHT4X_json, _SHT4X_json_props},
     {_SCD4X_json, _SCD4X_json_props},
     {_SmartDry_json, _SmartDry_json_props},
+    {_BM1IN1_json, _BM1IN1_json_props},
     {_BM3IN1_json, _BM3IN1_json_props},
     {_BM4IN1_json, _BM4IN1_json_props},
     {_MS_CDP_json, _MS_CDP_json_props},
diff --git a/src/devices/BM1IN1_json.h b/src/devices/BM1IN1_json.h
new file mode 100644
index 00000000..c0dad761
--- /dev/null
+++ b/src/devices/BM1IN1_json.h
@@ -0,0 +1,32 @@
+const char* _BM1IN1_json = "{\"brand\":\"Blue Maestro\",\"model\":\"Tempo Disc\",\"model_id\":\"TD1in1\",\"condition\":[\"manufacturerdata\",\"index\",4,\"0d\",\"&\",\"manufacturerdata\",\"=\",24,\"index\",0,\"3301\"],\"properties\":{\"tempc\":{\"decoder\":[\"value_from_hex_data\",\"manufacturerdata\",16,4,false,true],\"post_proc\":[\"/\",10]},\"batt\":{\"decoder\":[\"value_from_hex_data\",\"manufacturerdata\",6,2,false,false]}}}";
+/*R""""(
+{
+   "brand":"Blue Maestro",
+   "model":"Tempo Disc",
+   "model_id":"TD1in1",
+   "condition":["manufacturerdata", "index", 4, "0d", "&", "manufacturerdata", "=", 24, "index", 0, "3301"],
+   "properties":{
+      "tempc":{
+         "decoder":["value_from_hex_data", "manufacturerdata", 16, 4, false, true],
+         "post_proc":["/", 10]
+      },
+      "batt":{
+         "decoder":["value_from_hex_data", "manufacturerdata", 6, 2, false, false]
+      }
+   }
+})"""";*/
+
+const char* _BM1IN1_json_props = "{\"properties\":{\"tempc\":{\"unit\":\"°C\",\"name\":\"temperature\"},\"batt\":{\"unit\":\"%\",\"name\":\"battery\"}}}";
+/*R""""(
+{
+   "properties": {
+      "tempc": {
+         "unit": "°C",
+         "name": "temperature"
+      },
+      "batt": {
+         "unit": "%",
+         "name": "battery"
+      }
+   }
+})"""";*/
diff --git a/tests/BLE/test_ble.cpp b/tests/BLE/test_ble.cpp
index 11852751..cbbaafe5 100644
--- a/tests/BLE/test_ble.cpp
+++ b/tests/BLE/test_ble.cpp
@@ -68,6 +68,7 @@ const char* expected_mfg[] = {
     "{\"brand\":\"Blue Maestro\",\"model\":\"Tempo Disc\",\"model_id\":\"TD3in1\",\"tempc\":23.9,\"tempf\":75.02,\"hum\":43.5,\"tempc2_dp\":10.8,\"tempf2_dp\":51.44,\"batt\":86}",
     "{\"brand\":\"Blue Maestro\",\"model\":\"Tempo Disc\",\"model_id\":\"TD3in1\",\"tempc\":-16.3,\"tempf\":2.66,\"hum\":78.3,\"tempc2_dp\":-19.2,\"tempf2_dp\":-2.56,\"batt\":67}",
     "{\"brand\":\"Blue Maestro\",\"model\":\"Tempo Disc\",\"model_id\":\"TD4in1\",\"tempc\":22.3,\"tempf\":72.14,\"hum\":75.9,\"pres\":1013.5,\"batt\":58}",
+    "{\"brand\":\"Blue Maestro\",\"model\":\"Tempo Disc\",\"model_id\":\"TD1in1\",\"tempc\":25.2,\"tempf\":77.36,\"batt\":100}",
     "{\"brand\":\"GENERIC\",\"model\":\"MS-CDP\",\"model_id\":\"MS-CDP\",\"device\":\"Windows 10 Desktop\",\"salt\":\"ac6d90ec\",\"hash\":\"0132b3204cd39c7ced3e48436ba15dc6\"}",
     "{\"brand\":\"Inkbird/Tenergy\",\"model\":\"iBBQ/SOLIS6\",\"model_id\":\"IBT-6XS/SOLIS-6\",\"cidc\":false,\"tempc\":20,\"tempf\":68,\"tempc2\":20,\"tempf2\":68,\"tempc4\":21,\"tempf4\":69.8}",
     "{\"brand\":\"GENERIC\",\"model\":\"BM2 Battery Monitor\",\"model_id\":\"BM2\",\"batt\":100}",
@@ -302,6 +303,7 @@ const char* test_mfgdata[][3] = {
     {"BlueMaestro", "TempoDisc 3in1", "330117560e10177000ef01b3006c0100"},
     {"BlueMaestro", "TempoDisc 3in1", "330116430e10061eff5d030fff400100"},
     {"BlueMaestro", "TempoDisc 4in1", "33011b3a0e10061e00df02f727970100"},
+    {"BlueMaestro", "TempoDisc 1in1", "33010d6402580ad100fc0100"},
     {"MS-CDP", "Windows 10 Desktop", "060001092002ac6d90ec0132b3204cd39c7ced3e48436ba15dc6314778"},
     {"SOLIS_6", "iBBQ", "000000000cb2b71b5b18c800c800f6ffd200f6fff6ff"},
     {"BM2", "Battery Monitor", "4c000215655f83caae16a10a702e31f30d58dd82f644000064"},
@@ -387,6 +389,7 @@ TheengsDecoder::BLE_ID_NUM test_mfgdata_id_num[]{
   TheengsDecoder::BLE_ID_NUM::BM3IN1,
   TheengsDecoder::BLE_ID_NUM::BM3IN1,
   TheengsDecoder::BLE_ID_NUM::BM4IN1,
+  TheengsDecoder::BLE_ID_NUM::BM1IN1,
   TheengsDecoder::BLE_ID_NUM::MS_CDP,
   TheengsDecoder::BLE_ID_NUM::IBT6XS_SOLIS,
   TheengsDecoder::BLE_ID_NUM::BM2,