Feature 
   ☆ With “sandwich” structure, it is easy to be installed between
       DB-01 base and a detector
   ☆ Three working modes settable
   ☆ 16 selectable tones and bright flashing light
   ☆ Electronically addressed. The address and tones can be
       modified in field
   ☆ Tone 14 and 16 are certified by EN54-3
Technical Specifications   
  ☆ Operating Voltage：24VDC
  ☆ Standby Current：≤1mA
  ☆ Operating Current：≤6mA
  ☆ Working Mode：3 modes, 16 tones with pre-alarm tone
  ☆ Flash indication：Bright red flash, frequency 1Hz
  ☆ Programming：Electronically programmed, 1-242
  ☆ IP Class：IP21C
  ☆ Operating Temperature：-10°C ~ +50°C
  ☆ Relative Humidity：≤95%, non-condensing
  ☆ Material of Enclosure：ABS
  ☆ Dimension：152.4mm X 43mm (without cover)
  ☆ Weight：About 234g