diff --git a/src/oceanic_atom2.c b/src/oceanic_atom2.c
index 81be574..1d60176 100644
--- a/src/oceanic_atom2.c
+++ b/src/oceanic_atom2.c
@@ -65,6 +65,7 @@ static const device_backend_t oceanic_atom2_device_backend = {
 
 static const unsigned char oceanic_proplus2_version[] = "PROPLUS2 \0\0 512K";
 static const unsigned char oceanic_wisdom2_version[] = "WISDOM R\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_epic_version[]  = "2M EPIC r\0\0 512K";
 static const unsigned char oceanic_geo2_version[]  = "OCEGEO20 \0\0 512K";
@@ -83,6 +84,18 @@ static const oceanic_common_layout_t oceanic_default_layout = {
 	0 /* pt_mode_logbook */
 };
 
+static const oceanic_common_layout_t oceanic_atom1_layout = {
+	0x8000, /* memsize */
+	0x0000, /* cf_devinfo */
+	0x0040, /* cf_pointers */
+	0x0240, /* rb_logbook_begin */
+	0x0A40, /* rb_logbook_end */
+	0x0A40, /* rb_profile_begin */
+	0x8000, /* rb_profile_end */
+	0, /* pt_mode_global */
+	0 /* pt_mode_logbook */
+};
+
 static const oceanic_common_layout_t oceanic_atom2_layout = {
 	0xFFF0, /* memsize */
 	0x0000, /* cf_devinfo */
@@ -317,6 +330,8 @@ oceanic_atom2_device_open (device_t **out, const char* name)
 		oceanic_common_match (oceanic_proplus2_version, device->version, sizeof (device->version)) ||
 		oceanic_common_match (oceanic_wisdom2_version, device->version, sizeof (device->version)))
 		device->base.layout = &oceanic_atom2_layout;
+	else if (oceanic_common_match (oceanic_atom1_version, device->version, sizeof (device->version)))
+		device->base.layout = &oceanic_atom1_layout;
 	else
 		device->base.layout = &oceanic_default_layout;
 
diff --git a/src/oceanic_atom2_parser.c b/src/oceanic_atom2_parser.c
index 22daec3..06fc6d2 100644
--- a/src/oceanic_atom2_parser.c
+++ b/src/oceanic_atom2_parser.c
@@ -29,6 +29,7 @@
 #include "units.h"
 #include "utils.h"
 
+#define ATOM1       0x4250
 #define EPIC        0x4257
 #define VT3         0x4258
 #define ATOM2       0x4342
@@ -223,6 +224,8 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
 		parser->model == GEO20 || parser->model == VEO20 ||
 		parser->model == VEO30)
 		header -= PAGESIZE;
+	else if (parser->model == ATOM1)
+		header -= 2 * PAGESIZE;
 
 	if (size < header + 3 * PAGESIZE / 2)
 		return PARSER_STATUS_ERROR;
@@ -322,7 +325,7 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
 			}
 		} else {
 			// Temperature (°F)
-			if (parser->model == GEO) {
+			if (parser->model == GEO || parser->model == ATOM1) {
 				temperature = data[offset + 6];
 			} else if (parser->model == GEO20 || parser->model == VEO20 ||
 				parser->model == VEO30 || parser->model == OC1A ||
@@ -357,6 +360,8 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
 				parser->model == VEO30 || parser->model == OC1A ||
 				parser->model == OC1B)
 				depth = (data[offset + 4] + (data[offset + 5] << 8)) & 0x0FFF;
+			else if (parser->model == ATOM1)
+				depth = data[offset + 3] * 16;
 			else
 				depth = (data[offset + 2] + (data[offset + 3] << 8)) & 0x0FFF;
 			sample.depth = depth / 16.0 * FEET;