diff --git a/src/measurer.py b/src/measurer.py
index 6ec6609..57fb10f 100644
--- a/src/measurer.py
+++ b/src/measurer.py
@@ -11,16 +11,20 @@ logging.getLogger().setLevel(logging.INFO)
 sensor = VL53L1XSensor()
 sensor.open()
 
-while True:
-    sensor.setDirection(Directions.INSIDE)
-    distance_inside = sensor.getDistance()
-    
-    sensor.setDirection(Directions.OUTSIDE)
-    distance_outside = sensor.getDistance()
-    
-    logging.info("----------")
-    logging.info(f"Inside: {distance_inside} cm")
-    logging.info(f"Outside: {distance_outside} cm")
-    
-    sleep(DELAY_SECONDS)
+try:
+    while True:
+        sensor.setDirection(Directions.INSIDE)
+        distance_inside = sensor.getDistance()
+        
+        sensor.setDirection(Directions.OUTSIDE)
+        distance_outside = sensor.getDistance()
+        
+        logging.info("----------")
+        logging.info(f"Inside: {distance_inside} cm")
+        logging.info(f"Outside: {distance_outside} cm")
+        
+        sleep(DELAY_SECONDS)
+        
+finally:
+    sensor.close()
 
diff --git a/src/sensors/vl53l1x_sensor.py b/src/sensors/vl53l1x_sensor.py
index 89d1843..86bdf82 100644
--- a/src/sensors/vl53l1x_sensor.py
+++ b/src/sensors/vl53l1x_sensor.py
@@ -25,6 +25,7 @@ class VL53L1XSensor(ToFSensor):
     def open(self, ranging_mode: int = 2) -> None:
         self.sensor = VL53L1X.VL53L1X(i2c_bus=1, i2c_address=0x29)
         self.sensor.open()
+        self.roi = VL53L1X.VL53L1xUserRoi()
 
         # Optionally set an explicit timing budget
         # These values are measurement time in microseconds,
@@ -45,15 +46,16 @@ class VL53L1XSensor(ToFSensor):
             Directions.OUTSIDE: VL53L1X.VL53L1xUserRoi(6, 15, 9, 12),
         }
 
-        roi = direction_roi[direction]
+        self.roi = direction_roi[direction]
 
-        self.sensor.stop_ranging()
-        self.sensor.set_user_roi(roi)
-        self.sensor.start_ranging(self.ranging)
 
     def getDistance(self) -> float:
         """Returns new distance in cm."""
+        self.sensor.set_user_roi(self.roi)
+        self.sensor.set_timing(66000, 70)
+        self.sensor.start_ranging(self.ranging)
         distance = self.sensor.get_distance()
+        self.sensor.stop_ranging()
 
         return distance / 10