| Model Number | JKD-838W |
| Communication Protocol | WiFi-2.4GHz |
| Supply Voltage | AC 100-240V, 50Hz |
| Power Consumption | Max 5W |
| Standard Compliance | EN50194-1:2009 |
| Gas Detection | CH4 (Methane) |
| Alarm Concentration | >8.0%LEL (4000ppm) |
| Operating Temperature | -10℃ to 55℃ |
| Relative Humidity | 95% (No condensing) |
| Atmospheric Pressure | 86kPa to 106kPa, Indoor use type |
| Sampling Method | Natural diffusion |
| Alarm Method | Sound and Lighting Alarm |
| Alarm Volume | ≥85dB at 1m |
| Sensors | Catalytic sensor |
| Maximum Sensor Lifetime | 5 years |
| Weight | Approximately 200g |
| Dimensions | L120 × W75 × H40mm |
| Working Voltage | AC 100-240V, 50Hz |
| Standby Current | <200μA |
| Alarm Current | <150mA |
| Warming Time | 3 minutes |
| Pressure Range | 86kPa to 106kPa |
| Inspection Gases | Natural gas, liquefied petroleum gas, methane, propane, carbon monoxide |
| Detection Thresholds | Gas Alarm: over 6%LEL, Continuous alarm: over 25%LEL CO Alarm: over 200×10⁻⁶ |
| User Environment | Temperature: -10°C to 55°C Relative Humidity: <95% without crystallization |
| Alarm Type | Sound and light alarming |
| Alarming Volume | >80dB (at three meters directly in front) |
| Sensor Technology | Semiconductor sensor & electrochemical sensor |
| Weight | Approximately 200g |
| Dimensions | 120 × 75 × 40mm |
| Shell Protection Grade | IP30 |