3MK-5120D Natural gas detector is a device that can detect explosive gases in the air (natural gas and LPG). In case such dangerous gases are detected, the 3MK natural gas detector provides an audible warning with its buzzer and an illuminated warning with its LEDs. Through the relay output, monitoring in the central fire detection system or solenoid valve control is provided. The green LED lights up as long as the device is powered, and there is no danger as long as it lights up alone. If the 3MK-5120D Natural Gas Detector detects one of the explosive gases (natural gas and LPG), the red LED will also light up. At the same time, the buzzer is activated and the integrated relay on the natural gas detector changes its position. The yellow LED on the device is an error (malfunction) sign. The yellow LED is activated in case of loss of continuity and short circuit of the sensor. Each time the device is plugged in, it needs a maximum calibration time of 45 seconds. In this case, the device switches to a gas detection position after 45 seconds from the moment it is plugged in. The 3MK-5120D natural gas detector detects methane (CH4), propane (C3H8) and butane (C4H10) gases, even if they are far below the dangerous rate, and ensures your safety in places where there are devices working with explosive gases such as combi boilers, ovens, catalytic stoves, and water heaters. Detection Method : Semiconductor Semiconductor Sensing Technology Relay Output : 1 NO/NC contact Solenoid Valve Output : 250 VA Power : 3W Gas Threshold : 10% 5000 ppm Operating Temperature : -20°C ~ 50°C Humidity : 80% TSE : VAR İGDAŞ Approval : YES AKSAGAZ Approval : YES AKSARAY GAS Approval : YES Sound Intensity : 85dB Sensor Life : 5 Years Calibration Time : 45 seconds Dimensions : 85mm x 120mm x 46mm System Three different LED indicators showing ERROR / ALARM / POWER status All fire and robbery alarms Compatible with panels. It can be said that the use of a natural gas detector is of vital importance, since carbon monoxide poisonings are common due to the ability to control ventilation systems such as aspirators, etc., or to be integrated into an existing alarm system 220V AC 50Hz TS EN 50194.