LOREX LR-DG220 Natural Gas Detector / Domestic Gas Alarm
LOREX LR-DG220 is a domestic gas alarm developed for use in homes and similar indoor locations. It detects hazardous levels of explosive gases such as natural gas, methane, LPG, butane and propane, and warns the user with both audible and visual alarm indications. This helps provide early warning against possible gas leak risks and supports the protection of life and property.
The device begins to alarm at 0.5% LEL for natural gas and 0.3% LEL for LPG. When the detection threshold is reached, the buzzer is activated and the red LED lights up. The alarm condition continues until the gas level in the area falls below the safe limit. This ensures that the user remains clearly informed while the danger is still present.
LOREX LR-DG220 is easy to use. When the device is powered, it starts an automatic warm-up and calibration period of approximately 60 seconds. After this period is complete, the green LED indicates normal operating status. Thanks to its optional output configuration, the product can also be integrated with a solenoid valve, external siren or similar auxiliary equipment to become part of a more comprehensive gas safety solution.
The yellow fault LED on the device informs the user about fault conditions. In the event of sensor continuity loss or a short circuit, this indicator is activated. This helps maintenance or service requirements to be recognised quickly and supports the reliability of the system.
Natural Gas and Methane Detection
Provides early warning as a domestic gas alarm against the risk of natural gas and methane leaks.
LPG, Propane and Butane Detection
Helps detect gas leaks in kitchens, small commercial premises and indoor areas where LPG is used.
Audible and Visual Alarm
When a dangerous gas level is detected, the device warns the user with an 85 dB audible alarm and red LED alarm indication.
Solenoid Valve Integration
Thanks to its optional output configuration, it can be used together with a solenoid valve, external siren or auxiliary safety equipment.
General Features
- Detects natural gas, methane, LPG, butane and propane to provide early warning against domestic combustible gas leaks.
- Clearly indicates danger with an audible buzzer and red LED alarm indicator.
- Becomes ready for operation after a 60 second automatic warm-up and calibration process.
- 220VAC power supply enables easy use in homes, kitchens and small commercial areas.
- Optional output configuration allows integration with solenoid valves, sirens and similar equipment.
- Fault LED indicator informs the user in case of sensor fault, continuity loss or short circuit.
- Designed as a domestic gas alarm suitable for gas safety applications in accordance with EN 50194-1.
Installation and Operation of the LOREX LR-DG220 Gas Alarm
Connect the power supply to the device. When power is applied, the green light turns on and the 60 second warm-up calibration process starts. During this time, the device does not detect gas and gas must not be applied to the unit for testing purposes. If the power is interrupted and restored, the device repeats the same calibration process.
After the calibration period is complete, the device enters normal operating mode. When one of the explosive gases in the environment reaches the lower explosive limit threshold, the alarm light (red LED) and buzzer are activated. When the gas level drops below the safe limit, the device returns to normal operating status.
The fault light (yellow LED) on the device indicates error conditions such as sensor continuity loss or short circuit. In this case, it is recommended to contact technical service.
If the device is not alarming but a gas leak is suspected, ventilate the area, do not switch electrical sockets or appliances on or off, close the valves, try to identify the source of the gas leak and contact an authorised service provider or the relevant gas authority if necessary.
Important Installation Considerations
The installation location of the gas detector should be determined according to the physical behaviour of the gas to be detected. Natural gas and methane are lighter than air and tend to accumulate near the ceiling. LPG, propane and butane are heavier than air and may accumulate near floor level. For this reason, the mounting height and location of the device must be evaluated according to the gas type used and the instructions in the user manual.
The detector should not be installed in areas exposed to heavy steam, oil, dust, direct airflow, extractor outlets, in front of windows or in positions that may prevent gas from reaching the device. To obtain reliable results from the gas alarm, the mounting location should be selected close to appliances where a gas leak may occur, but away from conditions that may cause false alarms.
Technical Specifications
| Feature | LOREX LR-DG220 Natural Gas Detector / Domestic Gas Alarm |
|---|---|
| Model | LOREX LR-DG220 |
| Supply Voltage | 220VAC |
| Detected Gases | CH4 (Methane / Natural Gas), Butane, LPG, Propane |
| Operating Power | Maximum 4.5W |
| Output | 220VAC output, optional NO/NC contact output |
| Detection Threshold | Natural Gas: 0.5% LEL / LPG: 0.3% LEL |
| LEL Tolerance | ±0.4% LEL |
| Audible Alarm Output | 85 dB |
| Solenoid Valve Output | 220VAC |
| Apparatus Type | Type A |
| Standard | EN 50194-1 |
| Warm-up Calibration Time | 60 seconds |
| Humidity | 5% ~ 95% RH |
| Operating Temperature | -20°C ~ +50°C |
| Weight | 160 g |
| Dimensions | 110 x 64 x 40 mm |
Frequently Asked Questions
Which gases does the LOREX LR-DG220 detect?
LOREX LR-DG220 is a domestic gas alarm designed to detect leaks of combustible gases such as natural gas, methane, LPG, butane and propane.
Can the LOREX LR-DG220 be used with a solenoid valve?
Yes. Thanks to its optional output configuration, the LOREX LR-DG220 can be integrated with a solenoid valve, external siren or similar auxiliary equipment as part of a more comprehensive gas safety solution.
Does the device detect gas immediately after power-up?
No. When the unit is powered, it starts an automatic warm-up and calibration period of approximately 60 seconds. After this process is complete, the device enters normal operating mode.
Where should a natural gas detector be installed?
Natural gas is lighter than air, so natural gas detectors are generally installed near the ceiling. LPG is heavier than air, so LPG applications usually require installation closer to floor level. Final positioning should always follow the gas type and the instructions in the user manual.
