1. Alarm installation location: within a radius of 1.5m from the air source, in a well-ventilated place;

(1) Liquefied gas is heavier than air, and should be installed about 0.3m above the ground. place.

(2) Natural gas, city gas, carbon monoxide, etc. Lighter than air, installed approximately 0.3 meters from the ceiling.

2. Locations where the alarm cannot be installed: corners, cabinets and other locations where air is not easily circulated; locations that are easily exposed to oil fumes.

3. The voltage range of gas alarms is very wide. The most common products are 220V civilian voltage products, but generally 12V voltage products are relatively rare. The power supply method is a telephone line interface, which is suitable for users with high safety requirements. Compact and practical to install in the bedroom.