To ensure long and satisfactory use of your gas detector, you should follow the following Observe precautions: • To avoid premature exhaustion of the sensor, we recommend that you do not touch the sensor with lighters, Alcohol, cleaning agents, sprays of any kind, cleaning vapors, silicone substances, insecticides, etc. as these can render the system ineffective. • To clean the device, we recommend using a damp cloth without any detergents etc. • Do not get it wet. • The warning device is not waterproof, if it is immersed in water or exposed to high humidity, it may be severely damaged. • Do not drop it. • Shocks or falls during transport or installation may damage the device. • Avoid sudden temperature changes. • Sudden temperature changes can lead to the formation of condensation and the detector will not work may not be correct. • At temperatures above +40°C the detector can become very sensitive and cause false alarms.