is an intelligent gas detector equipped with a semiconductor sensor and an internal Micro-Controller Unit (MCU) . It is designed to provide both visual and audible alerts when gas concentrations reach dangerous levels.
Standard AC voltage (refer to your specific regional model). Operating Temperature: 50°F to 104°F (10°C to 40°C). Brj-502 Manual
: Display shows numbers 1 or 2; POWER light is on, but typically no audible alarm sounds yet. is an intelligent gas detector equipped with a
: Once powered, the unit begins a warm-up period (approx. 150 seconds). POWER light is on
The manual includes a section dedicated to common operational issues: