EURA A21A450 Carbon Monoxide and Gas Detector with Power Supply. High sensor sensitivity - Although a slight headache may occur after 2 hours at a concentration of 300 ppm, the sensor will detect it in just 3 minutes! 5-year sensor lifespan - Lifespan is counted from the sensor's production date. Very loud alarm (85 dB) - When the sensor detects a threat, it will emit a very loud and unpleasant sound that will wake even the most sleepyhead. LEDs indicate sensor malfunction, power, and alarm activation. 12-24 V DC power supply included! The device can be muted by pressing the test/mute button in Alarm mode after detecting methane or carbon monoxide. Each CGD-50A2 sensor has been tested in the Polish ZAMEL laboratory. Correct sensor mounting height: 1.5 m. Connecting the power supply: To connect the power supply, turn the device counterclockwise and then detach the back housing. Connect the power cable to the DC 12V socket on the sensor and then mount the back housing clockwise. Normal operation mode: After the sensors are warmed up, the device switches to normal operation mode, which is signaled by the continuous illumination of the green POWER LED. In this mode, the device performs the following functions: detecting dangerous concentrations of carbon monoxide (carbon monoxide) and natural gas (methane). Alarm: If the permissible concentration of carbon monoxide or methane in the air is exceeded, the device triggers a synchronized acoustic and visual alarm (red LED illuminated - ALARM). The alarm is active until the concentration of carbon monoxide or natural gas reaches a safe concentration. Carbon monoxide, commonly known as carbon monoxide, is a highly toxic, colorless, and odorless gas that spreads easily in the air. It is produced by the incomplete combustion of fuels such as wood, oil, gas, gasoline, kerosene, propane, coal, and petroleum. Because this gas is colorless and odorless, early detection of dangerous carbon monoxide concentrations in rooms is crucial, as it poses a serious threat to human health and life. Natural gas, used in gas stoves, for example, is colorless and barely perceptible. It is lighter than air, so it accumulates in the upper parts of rooms. When combined with oxygen, it creates a highly explosive mixture. Propane-butane gas (LPG) is heavier than air, just as natural gas creates an explosive mixture with oxygen. Symptoms of Carbon Monoxide Poisoning: 50 ppm - Maximum permissible concentration for continuous exposure over an 8-hour period; 150ppm - Slight headache after 1.5 hours; 200ppm - Slight headache, fatigue, dizziness, nausea after 2-3 hours; 400ppm - Pain in the front of the head within 1-2 hours. Life-threatening after 3 hours; 800ppm - Dizziness, nausea and convulsions within 45 min. Loss of consciousness within 2 hours. Death within 2-3 hours; 1600ppm - Headache, dizziness and nausea within 20 min. Death within 1 hour; 3200ppm - Headache, dizziness and nausea within 5-10 min. Death within 25-30 min.; The ppm unit indicates the concentration of (poisonous) gas. Technical data Supply voltage: 12 - 24 V DC ; Types of detected hazards: carbon monoxide, natural gas ; Min. detected gas concentration: 85dB/3m ; Operating temperature range: +4C +38C ; Compliance with the standard: EN50194-1:2009 / EN50291-1:2018 ; Sensor dimensions (H x W x D): 99 x 99 x 30 (mm) ; .