WI-FI gas leak sensor (methane, propane, butane) with TUYA LCD display

1)Detectable gases:
-Methane, propane, butane.
2)Measuring range:
-Sensitivity and accuracy: Meet safety standards.
-Minimum concentration for alarm: 8% of the lower explosive limit (LEL).
3)Response time:
- 30 seconds to change the gas concentration.
4)Alarm system:
-Visual: LED indicators.
-Sound: Built-in sound signal.
-Notifications: Via Wi-Fi on a free smartphone APP.
5)Additional functions:
-Built-in LCD display.
-Room thermometer function with a range from 0°C to +55°C.
6)Power supply:
-A direct current source from the mains.
-Built-in battery or an external power supply with a voltage of 5 V (for example, a power bank).
-Voltage: DC 5 V.
-Output voltage of contacts: 12 V.
-Current consumption: 150 mA.
7)Operating conditions:
-Temperature: -20°C to +50°C.
-Humidity: 80%.
-Resistance to mechanical damage, dust, dirt and chemical influences.
8)The device body:
-Material: Plastic.
-Mounting method: Wall mounted.
-Dimensions: 100 X 35 mm.
-Weight: 150 g.
9)Scope of delivery:
-Complete documentation: Technical specifications, installation and operation instructions.
-Mounting kit: 1W