diff --git a/README.md b/README.md
index ca7675f4..6f9ed285 100644
--- a/README.md
+++ b/README.md
@@ -134,7 +134,7 @@ See [CONTRIBUTING.md](./docs/CONTRIBUTING.md).
     [44]  CurrentCost Current Sensor
     [45]  emonTx OpenEnergyMonitor
     [46]  HT680 Remote control
-    [47]  Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor
+    [47]  Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor, ORIA WA50 ST389 temperature sensor
     [48]  Akhan 100F14 remote keyless entry
     [49]  Quhwa
     [50]  OSv1 Temperature Sensor
diff --git a/conf/rtl_433.example.conf b/conf/rtl_433.example.conf
index 1e6c1b12..b6a2a04c 100644
--- a/conf/rtl_433.example.conf
+++ b/conf/rtl_433.example.conf
@@ -275,7 +275,7 @@ convert si
   protocol 44  # CurrentCost Current Sensor
   protocol 45  # emonTx OpenEnergyMonitor
   protocol 46  # HT680 Remote control
-  protocol 47  # Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor
+  protocol 47  # Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor, ORIA WA50 ST389 temperature sensor
   protocol 48  # Akhan 100F14 remote keyless entry
   protocol 49  # Quhwa
   protocol 50  # OSv1 Temperature Sensor
@@ -478,11 +478,12 @@ convert si
   protocol 249 # Bresser lightning
   protocol 250 # Schou 72543 Day Rain Gauge, Motonet MTX Rain, MarQuant Rain Gauge, TFA Dostmann 30.3252.01/47.3006.01 Rain Gauge and Thermometer, ADE WS1907
   protocol 251 # Fine Offset / Ecowitt WH55 water leak sensor
-  protocol 252 # BMW Gen5 TPMS, multi-brand HUF, Continental, Schrader/Sensata
+  protocol 252 # BMW Gen4-Gen5 TPMS and Audi TPMS Pressure Alert, multi-brand HUF/Beru, Continental, Schrader/Sensata, Audi
   protocol 253 # Watts WFHT-RF Thermostat
   protocol 254 # Thermor DG950 weather station
   protocol 255 # Mueller Hot Rod water meter
   protocol 256 # ThermoPro TP28b Super Long Range Wireless Meat Thermometer for Smoker BBQ Grill
+  protocol 257 # BMW Gen3 TPMS
 
 ## Flex devices (command line option "-X")
 
diff --git a/src/devices/s3318p.c b/src/devices/s3318p.c
index 80622299..bff5058f 100644
--- a/src/devices/s3318p.c
+++ b/src/devices/s3318p.c
@@ -15,6 +15,8 @@ Largely the same as esperanza_ews, kedsum.
 
 Also NC-5849-913 from Pearl (for FWS-310 station).
 
+Also ST389 sensor for ORIA WA50 Wireless Digital Freezer Thermometer (no humidity)
+
 Transmit Interval: every ~50s.
 Message Format: 40 bits (10 nibbles).
 
@@ -102,7 +104,7 @@ static int s3318p_callback(r_device *decoder, bitbuffer_t *bitbuffer)
             "channel",          "Channel",      DATA_INT,    channel,
             "battery_ok",       "Battery",      DATA_INT,    !battery_low,
             "temperature_F",    "Temperature",  DATA_FORMAT, "%.2f F", DATA_DOUBLE, temp_f,
-            "humidity",         "Humidity",     DATA_FORMAT, "%u %%", DATA_INT, humidity,
+            "humidity",         "Humidity",     DATA_COND,   humidity != 0, DATA_FORMAT, "%u %%", DATA_INT, humidity,
             "button",           "Button",       DATA_INT,    button,
             "mic",              "Integrity",    DATA_STRING, "CRC",
             NULL);
@@ -125,7 +127,7 @@ static char const *const output_fields[] = {
 };
 
 r_device const s3318p = {
-        .name        = "Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor",
+        .name        = "Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor, ORIA WA50 ST389 temperature sensor",
         .modulation  = OOK_PULSE_PPM,
         .short_width = 1900,
         .long_width  = 3800,