
Fire audible and visual alarm
- Category:Ship Equipment
- Certificate:ABS,LR,BV,DNVGL,NK,KR,IRS,RMRS,CCS
- FOB Price:Get Latest Price Now
- Quality Guarantee:12 Months unless specified otherwise
- Place of Origin:China


Encoded, need to be used with DC24V fire alarm controller
◆ Technical specifications
| Technical standard | Meet the requirements of GB 26851-2005 |
| Operating Voltage | DC20V~26V |
| Monitor current | T+ 、T- ≤380uA; DC24V ≤420uA |
| Alarm current | T+ 、T- ≤1.5mA; DC24V ≤80mA |
| Sound level | 75dB~100dB |
| Change tone cycle | 0.2S~5S |
| Line system |
Two alarm buses T+, T- (with polarity) Two power bus 24V, GND (with polarity) |
| Lighting frequency | 1Hz to 2Hz (red light) |
| Alarm method | Light, sound |
| Operation place | Indoor type (in house) |
| Operating temperature | -10℃~+55℃ |
| Relative humidity | ≤90% |
| Dimensions | 88mm×41mm×88mm(L×W×H) |
| Weight | About 120g(with base) |
◆ Wiring diagram
Wiring diagram for SM501 Fire audible and visual alarm base
Wiring instructions
1, 3 terminal: T+, T- alarm bus (non-polarity)
2, 4 terminal: 24VDC power (with polarity)
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