diff --git a/src/cressi_goa_parser.c b/src/cressi_goa_parser.c
index cc99d2c..d7599dc 100644
--- a/src/cressi_goa_parser.c
+++ b/src/cressi_goa_parser.c
@@ -170,6 +170,7 @@ cressi_goa_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t c
 	unsigned int time = 0;
 	unsigned int interval = 5;
 	unsigned int complete = 1;
+	unsigned int gasmix_previous = 0xFFFFFFFF;
 
 	unsigned int offset = SZ_HEADER;
 	while (offset + 2 <= size) {
@@ -190,9 +191,18 @@ cressi_goa_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t c
 
 		if (type == DEPTH) {
 			// Depth (1/10 m).
-			unsigned int depth = value & 0x0FFF;
+			unsigned int depth = value & 0x07FF;
 			sample.depth = depth / 10.0;
 			if (callback) callback (DC_SAMPLE_DEPTH, sample, userdata);
+
+			// Gas change.
+			unsigned int gasmix = (value & 0x0800) >> 11;
+			if (gasmix != gasmix_previous) {
+				sample.gasmix = gasmix;
+				if (callback) callback (DC_SAMPLE_GASMIX, sample, userdata);
+				gasmix_previous = gasmix;
+			}
+
 			complete = 1;
 		} else if (type == TEMPERATURE) {
 			// Temperature (1/10 °C).
diff --git a/src/descriptor.c b/src/descriptor.c
index d542b57..07f418f 100644
--- a/src/descriptor.c
+++ b/src/descriptor.c
@@ -153,6 +153,7 @@ static const dc_descriptor_t g_descriptors[] = {
 	{"Scubapro", "Mantis",              DC_FAMILY_UWATEC_SMART, 0x20, DC_TRANSPORT_SERIAL, NULL},
 	{"Scubapro", "Aladin Square",       DC_FAMILY_UWATEC_SMART, 0x22, DC_TRANSPORT_USBHID, dc_filter_uwatec},
 	{"Scubapro", "Chromis",             DC_FAMILY_UWATEC_SMART, 0x24, DC_TRANSPORT_SERIAL, NULL},
+	{"Scubapro", "Aladin A1",           DC_FAMILY_UWATEC_SMART, 0x25, DC_TRANSPORT_BLE, dc_filter_uwatec},
 	{"Scubapro", "Mantis 2",            DC_FAMILY_UWATEC_SMART, 0x26, DC_TRANSPORT_SERIAL, NULL},
 	{"Scubapro", "G2",                  DC_FAMILY_UWATEC_SMART, 0x32, DC_TRANSPORT_USBHID | DC_TRANSPORT_BLE, dc_filter_uwatec},
 	{"Scubapro", "G2 Console",          DC_FAMILY_UWATEC_SMART, 0x32, DC_TRANSPORT_USBHID | DC_TRANSPORT_BLE, dc_filter_uwatec},
@@ -246,6 +247,7 @@ static const dc_descriptor_t g_descriptors[] = {
 	{"Aqualung", "i550C",               DC_FAMILY_OCEANIC_ATOM2, 0x4652, DC_TRANSPORT_SERIAL | DC_TRANSPORT_BLE, dc_filter_oceanic},
 	{"Oceanic",  "Geo 4.0",             DC_FAMILY_OCEANIC_ATOM2, 0x4653, DC_TRANSPORT_SERIAL | DC_TRANSPORT_BLE, dc_filter_oceanic},
 	{"Oceanic",  "Veo 4.0",             DC_FAMILY_OCEANIC_ATOM2, 0x4654, DC_TRANSPORT_SERIAL | DC_TRANSPORT_BLE, dc_filter_oceanic},
+	{"Sherwood", "Wisdom 4",            DC_FAMILY_OCEANIC_ATOM2, 0x4655, DC_TRANSPORT_SERIAL | DC_TRANSPORT_BLE, dc_filter_oceanic},
 	{"Oceanic",  "Pro Plus 4",          DC_FAMILY_OCEANIC_ATOM2, 0x4656, DC_TRANSPORT_SERIAL | DC_TRANSPORT_BLE, dc_filter_oceanic},
 	/* Mares Nemo */
 	{"Mares", "Nemo",         DC_FAMILY_MARES_NEMO, 0, DC_TRANSPORT_SERIAL, NULL},
@@ -498,6 +500,7 @@ static int dc_filter_uwatec (dc_transport_t transport, const void *userdata)
 		"G2",
 		"Aladin",
 		"HUD",
+		"A1",
 	};
 
 	if (transport == DC_TRANSPORT_IRDA) {
@@ -634,6 +637,7 @@ static int dc_filter_oceanic (dc_transport_t transport, const void *userdata)
 		0x4652, // Aqualung i550C
 		0x4653, // Oceanic Geo 4.0
 		0x4654, // Oceanic Veo 4.0
+		0x4655, // Sherwood Wisdom 4
 		0x4656, // Oceanic Pro Plus 4
 	};
 
diff --git a/src/oceanic_atom2.c b/src/oceanic_atom2.c
index f29d001..a123e31 100644
--- a/src/oceanic_atom2.c
+++ b/src/oceanic_atom2.c
@@ -174,6 +174,7 @@ static const oceanic_common_version_t oceanic_oc1_version[] = {
 	{"OCSWATCH \0\0 1024"},
 	{"AQUAI550 \0\0 1024"},
 	{"AQUA550C \0\0 1024"},
+	{"WISDOM04 \0\0 1024"},
 };
 
 static const oceanic_common_version_t oceanic_oci_version[] = {
diff --git a/src/oceanic_atom2_parser.c b/src/oceanic_atom2_parser.c
index 2477883..a53d2af 100644
--- a/src/oceanic_atom2_parser.c
+++ b/src/oceanic_atom2_parser.c
@@ -96,6 +96,7 @@
 #define I550C       0x4652
 #define GEO40       0x4653
 #define VEO40       0x4654
+#define WISDOM4     0x4655
 #define PROPLUS4    0x4656
 
 #define NORMAL   0
@@ -193,7 +194,7 @@ oceanic_atom2_parser_create (dc_parser_t **out, dc_context_t *context, unsigned
 		parser->headersize = 5 * PAGESIZE;
 	} else if (model == PROPLUSX) {
 		parser->headersize = 3 * PAGESIZE;
-	} else if (model == I550C) {
+	} else if (model == I550C || model == WISDOM4) {
 		parser->headersize = 5 * PAGESIZE / 2;
 	}
 
@@ -273,6 +274,7 @@ oceanic_atom2_parser_get_datetime (dc_parser_t *abstract, dc_datetime_t *datetim
 		case I550C:
 		case VISION:
 		case XPAIR:
+		case WISDOM4:
 			datetime->year   = ((p[5] & 0xE0) >> 5) + ((p[7] & 0xE0) >> 2) + 2000;
 			datetime->month  = (p[3] & 0x0F);
 			datetime->day    = ((p[0] & 0x80) >> 3) + ((p[3] & 0xF0) >> 4);
@@ -486,6 +488,9 @@ oceanic_atom2_parser_cache (oceanic_atom2_parser_t *parser)
 		o2_offset = 0x30;
 		ngasmixes = 4;
 		o2_step = 2;
+	} else if (parser->model == WISDOM4) {
+		o2_offset = header + 4;
+		ngasmixes = 1;
 	} else {
 		o2_offset = header + 4;
 		ngasmixes = 3;
@@ -926,7 +931,7 @@ oceanic_atom2_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_
 					unsigned int sign;
 					if (parser->model == DG03 || parser->model == PROPLUS3 ||
 						parser->model == I550 || parser->model == I550C ||
-						parser->model == PROPLUS4)
+						parser->model == PROPLUS4 || parser->model == WISDOM4)
 						sign = (~data[offset + 5] & 0x04) >> 2;
 					else if (parser->model == VOYAGER2G || parser->model == AMPHOS ||
 						parser->model == AMPHOSAIR || parser->model == ZENAIR)
@@ -959,7 +964,8 @@ oceanic_atom2_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_
 					parser->model == DG03 || parser->model == PROPLUS3 ||
 					parser->model == AMPHOSAIR || parser->model == I550 ||
 					parser->model == VISION || parser->model == XPAIR ||
-					parser->model == I550C || parser->model == PROPLUS4)
+					parser->model == I550C || parser->model == PROPLUS4 ||
+					parser->model == WISDOM4)
 					pressure = (((data[offset + 0] & 0x03) << 8) + data[offset + 1]) * 5;
 				else if (parser->model == TX1 || parser->model == A300CS ||
 					parser->model == VTX || parser->model == I750TC ||
@@ -1028,7 +1034,7 @@ oceanic_atom2_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_
 				have_deco = 1;
 			} else if (parser->model == ATOM31 || parser->model == VISION ||
 				parser->model == XPAIR || parser->model == I550 ||
-				parser->model == I550C) {
+				parser->model == I550C || parser->model == WISDOM4) {
 				decostop = (data[offset + 5] & 0xF0) >> 4;
 				decotime = array_uint16_le(data + offset + 4) & 0x03FF;
 				have_deco = 1;
@@ -1066,7 +1072,8 @@ oceanic_atom2_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_
 				rbt = array_uint16_le(data + offset + 8) & 0x01FF;
 				have_rbt = 1;
 			} else if (parser->model == VISION || parser->model == XPAIR ||
-				parser->model == I550 || parser->model == I550C) {
+				parser->model == I550 || parser->model == I550C ||
+				parser->model == WISDOM4) {
 				rbt = array_uint16_le(data + offset + 6) & 0x03FF;
 				have_rbt = 1;
 			}
diff --git a/src/oceanic_vtpro_parser.c b/src/oceanic_vtpro_parser.c
index 894b626..d09b2f9 100644
--- a/src/oceanic_vtpro_parser.c
+++ b/src/oceanic_vtpro_parser.c
@@ -129,7 +129,7 @@ oceanic_vtpro_parser_get_datetime (dc_parser_t *abstract, dc_datetime_t *datetim
 			else
 				datetime->year = bcd2dec (((p[32 + 3] & 0xC0) >> 2) + ((p[32 + 2] & 0xF0) >> 4)) + 2000;
 			datetime->month  = (p[4] & 0xF0) >> 4;
-			datetime->day    = bcd2dec (p[3]);
+			datetime->day    = bcd2dec (p[3] & 0x7F);
 			datetime->hour   = bcd2dec (p[1] & 0x7F);
 			pm = p[1] & 0x80;
 		}
diff --git a/src/uwatec_smart_parser.c b/src/uwatec_smart_parser.c
index 44b1e45..5974dbe 100644
--- a/src/uwatec_smart_parser.c
+++ b/src/uwatec_smart_parser.c
@@ -48,6 +48,7 @@
 #define MERIDIAN          0x20
 #define ALADINSQUARE      0x22
 #define CHROMIS           0x24
+#define ALADINA1          0x25
 #define MANTIS2           0x26
 #define G2                0x32
 #define G2HUD             0x42
@@ -530,7 +531,8 @@ uwatec_smart_parser_cache (uwatec_smart_parser_t *parser)
 					parser->model == ALADIN2G || parser->model == MERIDIAN ||
 					parser->model == CHROMIS || parser->model == MANTIS2 ||
 					parser->model == G2 || parser->model == ALADINSPORTMATRIX ||
-					parser->model == ALADINSQUARE || parser->model == G2HUD) {
+					parser->model == ALADINSQUARE || parser->model == G2HUD ||
+					parser->model == ALADINA1) {
 					unsigned int offset = header->tankpressure + 2 * i;
 					endpressure   = array_uint16_le(data + offset);
 					beginpressure = array_uint16_le(data + offset + 2 * header->ngases);
@@ -623,6 +625,7 @@ uwatec_smart_parser_create (dc_parser_t **out, dc_context_t *context, unsigned i
 	case G2:
 	case G2HUD:
 	case ALADINSPORTMATRIX:
+	case ALADINA1:
 		parser->headersize = 84;
 		parser->header = &uwatec_smart_trimix_header;
 		parser->samples = uwatec_smart_galileo_samples;
@@ -965,7 +968,8 @@ uwatec_smart_parse (uwatec_smart_parser_t *parser, dc_sample_callback_t callback
 			parser->model == ALADIN2G || parser->model == MERIDIAN ||
 			parser->model == CHROMIS || parser->model == MANTIS2 ||
 			parser->model == G2 || parser->model == ALADINSPORTMATRIX ||
-			parser->model == ALADINSQUARE || parser->model == G2HUD) {
+			parser->model == ALADINSQUARE || parser->model == G2HUD ||
+			parser->model == ALADINA1) {
 			// Uwatec Galileo
 			id = uwatec_galileo_identify (data[offset]);
 		} else {