diff --git a/src/oceanic_atom2.c b/src/oceanic_atom2.c
index c5d7a46..22c5baa 100644
--- a/src/oceanic_atom2.c
+++ b/src/oceanic_atom2.c
@@ -69,6 +69,7 @@ static const unsigned char oceanic_proplus2_version[] = "PROPLUS2 \0\0 512K";
 static const unsigned char oceanic_atom1_version[] = "ATOM rev\0\0  256K";
 static const unsigned char oceanic_atom2_version[] = "2M ATOM r\0\0 512K";
 static const unsigned char oceanic_atom3_version[] = "OCEATOM3 \0\0 1024";
+static const unsigned char oceanic_atom31_version[] = "ATOM31  \0\0  1024";
 static const unsigned char oceanic_vt4_version[]   = "OCEANVT4 \0\0 1024";
 static const unsigned char oceanic_vt41_version[]  = "OCEAVT41 \0\0 1024";
 static const unsigned char oceanic_geo2_version[]  = "OCEGEO20 \0\0 512K";
@@ -333,6 +334,7 @@ oceanic_atom2_device_open (device_t **out, const char* name)
 	if (oceanic_common_match (oceanic_oc1a_version, device->version, sizeof (device->version)) ||
 		oceanic_common_match (oceanic_oc1b_version, device->version, sizeof (device->version)) ||
 		oceanic_common_match (oceanic_atom3_version, device->version, sizeof (device->version)) ||
+		oceanic_common_match (oceanic_atom31_version, device->version, sizeof (device->version)) ||
 		oceanic_common_match (oceanic_vt4_version, device->version, sizeof (device->version)) ||
 		oceanic_common_match (oceanic_vt41_version, device->version, sizeof (device->version)))
 		device->base.layout = &oceanic_oc1_layout;
diff --git a/src/oceanic_atom2_parser.c b/src/oceanic_atom2_parser.c
index 96a0159..3ae3888 100644
--- a/src/oceanic_atom2_parser.c
+++ b/src/oceanic_atom2_parser.c
@@ -46,6 +46,7 @@
 #define OC1B        0x4449
 #define ATOM3       0x444C
 #define VT41        0x4452
+#define ATOM31      0x4456
 
 typedef struct oceanic_atom2_parser_t oceanic_atom2_parser_t;
 
@@ -159,6 +160,7 @@ oceanic_atom2_parser_get_datetime (parser_t *abstract, dc_datetime_t *datetime)
 		case VT4:
 		case VT41:
 		case ATOM3:
+		case ATOM31:
 			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);
@@ -437,7 +439,7 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
 				parser->model == VEO30 || parser->model == OC1A ||
 				parser->model == OC1B) {
 				temperature = data[offset + 3];
-			} else if (parser->model == VT4 || parser->model == VT41 || parser->model == ATOM3) {
+			} else if (parser->model == VT4 || parser->model == VT41 || parser->model == ATOM3 || parser->model == ATOM31) {
 				temperature = ((data[offset + 7] & 0xF0) >> 4) | ((data[offset + 7] & 0x0C) << 2) | ((data[offset + 5] & 0x0C) << 4);
 			} else {
 				unsigned int sign;
@@ -456,7 +458,7 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
 			// Tank Pressure (psi)
 			if (parser->model == OC1A || parser->model == OC1B)
 				pressure = (data[offset + 10] + (data[offset + 11] << 8)) & 0x0FFF;
-			else if (parser->model == ZENAIR || parser->model == VT4 || parser->model == VT41|| parser->model == ATOM3)
+			else if (parser->model == ZENAIR || parser->model == VT4 || parser->model == VT41|| parser->model == ATOM3 || parser->model == ATOM31)
 				pressure = (((data[offset + 0] & 0x03) << 8) + data[offset + 1]) * 5;
 			else
 				pressure -= data[offset + 1];