Why is there a sticker that says "remove seal after washing"?

In manufacture of PCBs they wash excess flux off after reflow soldering. This sticker reminds them to remove it as it blocks openings while the board is washed.

Active buzzers like this are rated at around 85dB minimum.

will this make any sound if powered by lower volt like, 1.5v or 3v?

The one I quickly tested seemed to trigger at about 3.5V, operates at about 3.4V, and fades to off within a drop of .1 or .2. YMMV

What is the diameter and height?

I measured .37h x .47d with a range of about .02 in inches

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10Pcs 5V Active Buzzer Electronic Alarm Magnetic Long Continuous Beep for Arduino (Pack of 10) CYT1036

10Pcs 5V Active Buzzer Electronic Alarm Magnetic Long Continuous Beep for Arduino (Pack of 10) CYT1036

Product ID: 40049662

Details

Brand
Cylewet
Color
Black
Control Method
Touch
Mounting Type
Wall Mount
Voltage
5 volts

⚡Low power draw <25mA

🔊Consistent 2500Hz beep frequency

🔋Wide 4-8V input voltage range

Rp304417

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔔 Amplify your alerts with precision and power!

BULK PACK ADVANTAGE - 10 buzzers included—perfect for prototyping or scaling your Arduino builds
PRECISION SOUND OUTPUT - Stable 2500±300Hz frequency ensures clear, attention-grabbing alerts
RELIABLE READY TO MOUNT - Wall-mountable design with proven stable performance for professional setups
POWER EFFICIENT PERFORMANCE - Consumes less than 25mA for energy-smart projects
VERSATILE VOLTAGE COMPATIBILITY - Operates seamlessly between 4-8V DC for flexible integration

This pack of 10 active buzzers delivers reliable, continuous beeps at a stable 2500Hz frequency, operating efficiently under 25mA current and compatible with 4-8V DC input. Ideal for Arduino projects requiring consistent audio alarms, these compact, wall-mountable buzzers combine energy efficiency with professional-grade performance.

Specifications

ASIN	B01N7NHSY6
Best Sellers Rank	#24,795 in Electronics ( See Top 100 in Electronics )
Brand	Cylewet
Color	Black
Control Method	Touch
Customer Reviews	4.4 4.4 out of 5 stars (223)
Manufacturer	Qianxin
Mfr Part Number	CYT1036
Model Number	CYT1036
Mounting Type	Wall Mount
Number of Items	10
UPC	714424356864
Unit Count	10 Count
Voltage	5 volts

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Rp304417

Duties & taxes included

In stock

Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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