B20 series beep/white noise/speaking alarm with nylon housing
Main features:
B20 series car back-up alarm is one of most popular and cost effective lines. A glass-filled nylon housing with expxy-encapsulated electronics provide exceptional durability and protection against moisture, dust and vibration. Intelligent models measure the ambient noise level and adjust their output level. create a volume that is safe without being annoying or contributing to noise pollution. Vocal or white noise versions are optional.
Reinforced nylon housing eliminates corrosion damage
Wire/connector/bolt mounting optional, easy to install
Voltage polarity protection
RoHS compliant, CE certified
Size:103.5*71*40.5mm
Weight: 310g
P/Ns of B20 series back-up alarm:
P/N | VOLTAGE (VDC) | OUTPUT (+/-4dBA @4FT) | REMARK |
YS-B21 | 12-48 | 97 | Bolts |
YS-B21D | 12-48 | 97 | Connection D |
YS-B21W | 12-48 | 97 | Connection W |
YS-B21W-WN | 12-24 | 97 | White noise, W |
YS-B22W-LS | 12-24 | 87-102 | Self adjusting, light sensing, W |
YS-B23W-3BRV | 12-24 | 102 | English reversing, W |
YS-B23W-4TL-CL | 12-24 | 102 | English left turning, W |
YS-B24 | 12-48 | 107 | Bolts |
YS-B24AF | 12-48 | 104 | Connection A |
YS-B24D | 12-48 | 107 | Connection D |
YS-B24W | 12-48 | 107 | Connection W |
YS-B28W-MC | 12-24 | 87-102 | Self adjusting, beep, W |
YS_B28W-MN-MC | 12-24 | 87-102 | Self adjusting, white noise, bolts |
*Wiring/connections optional:
Mechanical drawing (mm):
Sound sample(s):
So some people must want to kn...
A self adjustable back up alar...
The car back up alarm has been...