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Brand Name : YUESONIC
Model Number : YS-B81 S
Certification : CE
Place of Origin : CHINA
MOQ : 30 PCs
Price : USD15-USD 30/pc
Payment Terms : T/T, D/P, Western Union
Supply Ability : 10000 Pcs/ Month
Delivery Time : 2-4 weeks
Packaging Details : Individual neutral box, 30 pcs per carton
MATERIAL : Reinforced nylon housing
VOLTAGE : 12-24V nominal
OUTPUT : 90 - 100 dB
CURRENT : MAX 0.6A
TEMPERATURE : -40 to 85℃
SIZE : 105*71.8*70 mm
WEIGHT : 375g
TYPE : Squawker reverse alarm
Nylon IP68 handbrake not applied warning squawker reverse alarm
General specifications:
| Output level | 90-100dB ± 4dB at 1.2M | 
| Voltage | 12-24VDC dual voltage | 
| Current drain | less than 0.6A | 
| temperature range | -40 to 85 degree C | 
| Frequency | multi frequency | 
| Duty cycle | depends | 
| weight | 375g ± 10% | 
| Dimensions | 105*71.8*70mm | 
Applications:
the alarm is used in a 12v or 24v automotive system.
it monitors the handbrake switch and the door frame switch to provide audible warning if the door is opened while the handbrake is not allpied.
once the alarm starts, it stays latched on until the handbrake is applied (even if the door is closed again)
So it reduces the risk of the vehicle being accidentally left unattended without the handbrake on
Main features:
RED=POWER + 12 OR 24v
 BLACK=GROUND
 BLUE=HANDBRAKE SWITCH NEGATIVE
 WHITE=DOOR SWITCH NEGATIVE
 YELLOW=HANDBRAKE SWITCH POSITIVE
 ORANGE=CONNECT TO =12 OR 24V ONLY WHEN USING HANDBRAKE POSITIVE SWITCH
RoHS and CE
Similar products:
with same housing
| P/N | Voltage | Output | Remark | 
| YS-B81 S | 12-24V | 97dB | squawker | 
| YS-B82 S | 12-24V | 97dB | beep sound | 
| YS-B83 S | 12-24V | 97dB | bespoken messages | 
Alarms of different housings
wire connection version ot studs version available for some housings
Connctors optional for wire connection versions
beep sound, white noise sound, vocal messages available for some models
Intelligent alarms with beep sound, white noise sound available.
Intelligent alarms with night mode, silent mode avaible.

Quick details for all series alarms
| Series | Size | Sound | Remark | 
| B00 | 127*70*73.5mm | beep sound | intelligent models available | 
| B10 | dia 60*46.3mm | beep sound | |
| B20 | 103.5*40.5*71mm | beep, white noise, bespoken message | intelligent models available | 
| B30 | 103*44.5*68mm | beep, white noise, bespoken message | intelligent models available | 
| B40 | 129*69*74mm | beep sound, bespoken message | manual adjustable available | 
| B50 | 102*44.5*69.5mm | beep, white noise, bespoken message | intelligent models available | 
| B60 | 127*95*77mm | beep, white noise, bespoken message | intelligent models available | 
| B70 | 127.5*79*82mm | beep, white noise, bespoken message | models with night mode available | 
| B80 S | 105*71.8*70mm | beep, white noise, bespoken message | models with night mode available | 
| B80 L | 130*76*88mm | beep, white noise, bespoken message | models with night mode available | 
| BJ | 58*30*59.5mm | beep, white noise, bespoken message | |
| B90 | beep, white noise, bespoken message | models with night mode available | 
More information about the alarm:

Alarm drawing, sizes in mm

alarm production line, with operation instruction for all positions

Alarm in production test, to have a better quality



Alarm Lab tests, including general specs tests, enviromental tests, reliabity tests, to make sure alarms well designed, will work well as we design it.
feel free to let me know if you want to know more about our products and factory.
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