diff --git a/src/descriptor.c b/src/descriptor.c
index b0a3db6..4ea801a 100644
--- a/src/descriptor.c
+++ b/src/descriptor.c
@@ -352,6 +352,8 @@ static const dc_descriptor_t g_descriptors[] = {
 	{"Shearwater", "Nerd 2",    DC_FAMILY_SHEARWATER_PETREL, 7, DC_TRANSPORT_BLE, dc_filter_shearwater},
 	{"Shearwater", "Teric",     DC_FAMILY_SHEARWATER_PETREL, 8, DC_TRANSPORT_BLE, dc_filter_shearwater},
 	{"Shearwater", "Peregrine", DC_FAMILY_SHEARWATER_PETREL, 9, DC_TRANSPORT_BLE, dc_filter_shearwater},
+	{"Shearwater", "Petrel 3",  DC_FAMILY_SHEARWATER_PETREL, 10, DC_TRANSPORT_BLE, dc_filter_shearwater},
+	{"Shearwater", "Perdix 2",  DC_FAMILY_SHEARWATER_PETREL, 11, DC_TRANSPORT_BLE, dc_filter_shearwater},
 	/* Dive Rite NiTek Q */
 	{"Dive Rite", "NiTek Q",   DC_FAMILY_DIVERITE_NITEKQ, 0, DC_TRANSPORT_SERIAL, NULL},
 	/* Citizen Hyper Aqualand */
@@ -616,9 +618,11 @@ static int dc_filter_shearwater (dc_transport_t transport, const void *userdata,
 	static const char * const bluetooth[] = {
 		"Predator",
 		"Petrel",
+		"Petrel 3",
 		"NERD",
 		"NERD 2",
 		"Perdix",
+		"Perdix 2",
 		"Teric",
 		"Peregrine",
 	};
diff --git a/src/shearwater_common.h b/src/shearwater_common.h
index a728538..b1f8c3b 100644
--- a/src/shearwater_common.h
+++ b/src/shearwater_common.h
@@ -44,6 +44,8 @@ extern "C" {
 #define NERD2    7
 #define TERIC    8
 #define PEREGRINE 9
+#define PETREL3  10
+#define PERDIX2  11
 
 #define NSTEPS    10000
 #define STEP(i,n) ((NSTEPS * (i) + (n) / 2) / (n))
diff --git a/src/shearwater_petrel.c b/src/shearwater_petrel.c
index 2fd48d8..08fa140 100644
--- a/src/shearwater_petrel.c
+++ b/src/shearwater_petrel.c
@@ -230,6 +230,9 @@ shearwater_petrel_device_foreach (dc_device_t *abstract, dc_dive_callback_t call
 	case 0x8838:
 		model = PETREL2;
 		break;
+	case 0xB407:
+		model = PETREL3;
+		break;
 	case 0x0606:
 	case 0x0A0A:
 		model = NERD;
@@ -245,6 +248,9 @@ shearwater_petrel_device_foreach (dc_device_t *abstract, dc_dive_callback_t call
 	case 0x7C2D:
 		model = PERDIXAI;
 		break;
+	case 0xC407:
+		model = PERDIX2;
+		break;
 	case 0x0F0F:
 	case 0x1F0A:
 	case 0x1F0F: