diff --git a/wally/sensors.py b/wally/sensors.py
new file mode 100644
index 0000000..b579f3f
--- /dev/null
+++ b/wally/sensors.py
@@ -0,0 +1,90 @@
+from typing import List, Dict, Tuple
+from .test_run_class import TestRun
+from . import sensors_rpc_plugin
+
+
+plugin_fname = sensors_rpc_plugin.__file__.rsplit(".", 1)[0] + ".py"
+SENSORS_PLUGIN_CODE = open(plugin_fname).read()
+
+
+# TODO(koder): in case if node has more than one role sensor settigns might be incorrect
+def start_sensors_stage(ctx: TestRun) -> None:
+    if 'sensors' not in ctx.config:
+        return
+
+    per_role_config = {}
+    for name, val in ctx.config['sensors'].copy():
+        if isinstance(val, str):
+            val = {vl.strip(): ".*" for vl in val.split(",")}
+        elif isinstance(val, list):
+            val = {vl: ".*" for vl in val}
+        per_role_config[name] = val
+
+    if 'all' in per_role_config:
+        all_vl = per_role_config.pop('all')
+        all_roles = set(per_role_config)
+
+        for node in ctx.nodes:
+            all_roles.update(node.info.roles)
+
+        for name, vals in list(per_role_config.items()):
+            new_vals = all_roles.copy()
+            new_vals.update(vals)
+            per_role_config[name] = new_vals
+
+    for node in ctx.nodes:
+        node_cfg = {}
+        for role in node.info.roles:
+            node_cfg.update(per_role_config.get(role, {}))
+
+        if node_cfg:
+            node.conn.upload_plugin(SENSORS_PLUGIN_CODE)
+            ctx.sensors_run_on.add(node.info.node_id())
+        node.conn.sensors.start()
+
+
+def collect_sensors_stage(ctx: TestRun, stop: bool = True) -> None:
+    for node in ctx.nodes:
+        node_id = node.info.node_id()
+        if node_id in ctx.sensors_run_on:
+
+            if stop:
+                data, collected_at = node.conn.sensors.stop()  # type: Dict[Tuple[str, str], List[int]], List[float]
+            else:
+                data, collected_at = node.conn.sensors.get_updates()
+
+            for (source_name, sensor_name), values in data.items():
+                path = "metric/{}/{}/{}".format(node_id, source_name, sensor_name)
+                ctx.storage.append(path, values)
+                ctx.storage.append("metric/{}/collected_at".format(node_id), collected_at)
+
+
+# def delta(func, only_upd=True):
+#     prev = {}
+#     while True:
+#         for dev_name, vals in func():
+#             if dev_name not in prev:
+#                 prev[dev_name] = {}
+#                 for name, (val, _) in vals.items():
+#                     prev[dev_name][name] = val
+#             else:
+#                 dev_prev = prev[dev_name]
+#                 res = {}
+#                 for stat_name, (val, accum_val) in vals.items():
+#                     if accum_val:
+#                         if stat_name in dev_prev:
+#                             delta = int(val) - int(dev_prev[stat_name])
+#                             if not only_upd or 0 != delta:
+#                                 res[stat_name] = str(delta)
+#                         dev_prev[stat_name] = val
+#                     elif not only_upd or '0' != val:
+#                         res[stat_name] = val
+#
+#                 if only_upd and len(res) == 0:
+#                     continue
+#                 yield dev_name, res
+#         yield None, None
+#
+#
+
+