diff --git a/src/isar_robot/telemetry.py b/src/isar_robot/telemetry.py
index 5cae5155..241a79aa 100644
--- a/src/isar_robot/telemetry.py
+++ b/src/isar_robot/telemetry.py
@@ -13,12 +13,16 @@
 
 
 def _get_battery_level() -> float:
-    return 100 - random.randrange(0, 100) * 0.5
+    # Return random float in the range [50, 100]
+    return random.randint(500, 1000) / 10.0
 
 
 def _get_pressure_level() -> float:
+    # Return random float in the range [0.011, 0.079]
+    min_pressure = 11  # millibar
+    max_pressure = 79  # millibar
     millibar_to_bar: float = 1 / 1000
-    return (80 - random.randrange(10, 80) * 0.5) * millibar_to_bar
+    return random.randint(min_pressure, max_pressure) * millibar_to_bar
 
 
 def _get_obstacle_status() -> bool:
diff --git a/tests/test_telemetry.py b/tests/test_telemetry.py
new file mode 100644
index 00000000..c2c2a97a
--- /dev/null
+++ b/tests/test_telemetry.py
@@ -0,0 +1,15 @@
+from isar_robot.telemetry import _get_pressure_level, _get_battery_level
+
+
+def test_get_battery_level():
+    for _ in range(100):
+        pressure_level: float = _get_battery_level()
+        assert pressure_level >= 50
+        assert pressure_level <= 100
+
+
+def test_get_pressure_level():
+    for _ in range(100):
+        pressure_level: float = _get_pressure_level()
+        assert pressure_level >= 0.011
+        assert pressure_level <= 0.079