Payment & Shipping Terms:
|Minimum Order Quantity:||500 pieces|
|Price:||US $6.5 - 7.5 / Piece|
|Packaging Details:||Paper carton|
|Delivery Time:||10-15 working days after payment or receipt of L/C|
|Payment Terms:||L/C, T/T, Western Union,Paypal,Credit card,Debit card|
|Supply Ability:||50000 Pieces per Week|
auto fire protection,
automatic fire protection systems
Automatic Fire Protection Systems Fire Alarm Signal Automatic
The fire alarm is automatic fire alarm and audio output device in the system.When fire happen, the fire alarm system by the output control module starts the alarm, it is ringing alarm signal to inform the proximate persons of the need to take action, usually to evacuate.
Working principle :
When a fire occurs, smoke in the air contained in the particle concentration and the ambient temperature exceeds the standard fire alarm set value, the sensor information will be dangerous to the host, then alarm bells ringing.