Product features  

1.It can realize complete electronic coding and in situ rewriting with the help of a coder.  

2.The audible alarm and flashing alarm may be set freely. In other words, the hooter/horn may give an audible alarm
and a flashing alarm at the same time or separately and it can be adapted to different working environments.    

3.Designed with an upper cover and a lower cover, it can be installed, debugged and maintained conveniently.    

4.It uses multiple super bright red LEDs as light sources for visual display, ensuring a striking display, a longer service life and low power consumption.

 Technical parameters
1.  Executive standard: GA385- 2002
2.   Operating voltage: DC24V (pulse modulation)
3. mA (the current 
4.  Operating environment: Temperature: 10+55, without condensation)
5.  Flushing rate: one time/s
6.  Alarm volume: 85dB (measured at a place 3m in front of the hooter/horn)
7.  Coding method: Electronic coding
8.  Wiring method: Four-wire system, non-polarity two signal buses (L1, L2) and power lines (+24V, GND)
9.  Matched host machine: fire alarm control panel (such as AW-AFP2188)

ASS2188 Detail Picture,

 Maintenance and inspection
1.  As specified in national standard Code for Installation and Acceptance of Fire Alarm System (GB50166-2007), at least quarterly tests should be done for each hooter/horn. 
2.  If a hooter/horn fails due to a material defect or a manufacturing process defect under the normal conditions of use in one year following the date of its delivery, we shall repair or replace it for free. However, the faults of the hooter/horn due to artificial damages, improper use or unauthorized adjustment, reconstruction or disassembly are not covered in the
guarantee and we shall assume no responsibility for all the consequences thereby caused.
3.  We may provide a paid repair service for the products with any faults beyond the guarantee range. If you have such products needing repair, please contact us. When sending such a product to us for repair, you are expected to provide
some important information about the product, such as the phenomenon and possible cause of the product fault, so that we can find out the cause of the fault in the shortest time and the information may be used as a reference in our future product development and improvement.