Note: All products are tax-inclusive.
Passive Buzzer Unit is a small-sized buzzer module that operates as a passive component, meaning it requires an external signal to produce sound. It is driven by a 4KHz signal and can emit sound with a maximum volume of up to 72dB when measured within a 10cm distance, based on the rating input power.
Passive Buzzer Unit delivers impressive audio performance, producing clear and audible sound output. It is enclosed in a protective housing, which helps shield the internal components from external elements and provides durability.
The module is designed to be compact in size, making it easy to integrate into various projects and devices. It consumes low power, which is beneficial for applications where energy efficiency is important. This module can be applied in a range of buzzer alarm scenarios where an audible alert or notification is required. It can be used in alarm systems, warning indicators, audible feedback mechanisms, and other applications that rely on sound-based alerts.
Product Features
- Drive signal:
- 4KHz oscillation frequency
- Up to 72dB (within 10cm, at rating power)
- Drive signal: 4KHz 1/2duty square wave
Include
- 1x BUZZER Unit
- 1x HY2.0-4P cable (20cm)
Applications
- Buzzer/reminder
Specification
| Specifications | Parameters |
|---|---|
| Drive frequency | 4KHz 1/2duty square wave |
| Power consumption | 5V@86mA |
| Net weight | 3.5g |
| Gross weight | 8.5g |
| Product size | 24 * 24 * 8mm |
| Packing size | 93 * 138mm |
General Shipping Info
- Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Processing" to avoid parcel loss.
- Please contact our customer service staff immediately if you need to cancel or alter an order. Once your order has reached "processing" status, it can no longer be canceled or altered in any way. To avoid complications, please recheck your shopping cart before checkout.
- We can ship all in-stock orders within 2 business days as your order has been confirmed.
- All items are inspected before dispatch and are carefully hand-packed.
- With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
Free Shipping Policy*
* Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For above countries the International Shipping Rule applies.
Distributors are not eligible for free shipping.
Shipping Options
We offer competitively priced shipping services via Deutsche Post, DHL, YunExpress, and 4PX, with tracking to ensure your products are delivered safely and promptly.
Shipping Times (From China Warehouse)
- Asia: 2-5 Business Days
- Western EU: 7-10 Business Days
- Eastern EU: 7-10 Business Days
- North America: 5-8 Business Days
- South America: 7-15 Business Days
- Australia: 5-8 Business Days
- Africa: 5-15 Business Days
Shipping Times (From German Warehouse)
- Germany: 2-4 Business Days
- Western EU: 3-5 Business Days
- Eastern EU: 4-6 Business Days
Important Notice:
Faster shipping times to Western and Eastern Europe apply only to products marked as "Product Inventory Location: Germany" on the product page. If the product is not labeled with this location, it will ship from our Chinese warehouse following the corresponding shipping schedule above.
Whether shipped from Germany or China, we cover all import duties and taxes, ensuring that you receive your package without any additional costs or hassles with customs.
Please verify the inventory location on the product page before placing your order to confirm delivery timeframes. For any questions or further assistance, feel free to contact us!
International Warehouses
Our products are stored in both our Shenzhen and German warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.
German Warehouse
For products stored in our warehouse in Germany, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently.
Chinese Warehouse
Products shipped from our Chinese warehouse are handled by YunExpress. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors.
To ensure that your order is delivered within your desired timeframe, we recommend reviewing the warehouse information provided on the product pages before placing your order and selecting the appropriate shipping option. If you have any questions or need further assistance, please don't hesitate to contact our customer support team—we are here to help you!
Order Status
- Pending: Your order has been submitted, but payment has not been completed.
- Confirming (Bank transfer only): We are waiting for payment to arrive or are verifying payment.
- Confirmed: Payment has been confirmed and your order will begin processing shortly.
- Processing: Your order is being processed.
- Shipped: Your package has been collected by the forwarder.
- Traceable: Tracking information for your package is now available. Please go to your order history to track the status of your package.
- Canceled: Your order has been canceled.
- Closed (Credit card only): Payment was rejected by the bank. Please place the order again and try another payment method or contact your credit card provider.
Please note that it may take 1-2 working days for Deutsche Post, DHL, YunExpress, and 4PX services to update the status from 'Shipped' to 'Traceable'.
Effective Date: March 25, 2024
OpenELAB guarantees to provide accurate descriptions and high-quality products. If you encounter any problems with any executed purchase order, please notify OpenELAB within 60 days from the date of shipment.UNLESS OTHERWISE EXPRESSLY STIPULATED IN PERTICULAR AGREEMENT OR PURCHASE ORDER, OpenELAB MAKES NO WARRANTY OF FITNESS, SUITABILITY OR MERCHANTABILITY OF THE PRODUCT FOR ANY PARTICULAR PURPOSE OR SPECIAL CIRCUMSTANCE.
Warranty Period
General Term
- Warranty Period of product sold by OpenELAB is 12 months as of the date of delivery.
- OpenELAB will provide economic effort to replace or repair the product free of charge if the defects are caused due to reasons related to raw materials, designation, or manufacturing process.
- OpenELAB will repair, replace the product under reasonable charges to the customer if the product defects meets this Warranty Policy.
- OpenELAB will repairs, replace the defective product, or provide on-site technical support for products exceeding the warranty period on reasonable fees.
Exceptions
OpenELAB will refuse to provide warranty promises if:
- Products have been beyond the warranty period; or
- Defections are due to wrong use, improper maintenance or storage, or breach of user guides or menus provided by OpenELAB; or
- Defections are results of Force Majeure, which shall mean any acts of law, natural disaster, war, riots, strikes, insurrections, tsunami, typhoon, earthquake, terrorism, governmental sanctions, legislation changes or any similar event beyond such party’s reasonable control; or
- Customers have conducted repair actions on the products.
- For those specific product (e.g. Azure Sphere MT3620 Development Kit ) as notified to Customer expressly, in cases that the product is free from any Quality Defect and the product package has been opened by Customer.
Returns & Refund
If you are not satisfied with a product you bought, for whatever reason, it is possible to return it for refund within 5 days of receipt (10 days for an exchange). Please first email us to info@OpenELAB.io for return authorization.
We would like to kindly remind you that the customer is responsible for shipping the product back to our warehouse in Europe, US or China, which ever is convenient to you.
Return for Refund: within 5 days of receiving your product. (unopened)
Return for Replacement: within 10 days of receiving your product. (damaged or defective)
No returns will be accepted without having previously obtained a return authorization. All returns must be in its original mint and clean condition. Returns on damaged, scratched, programmed, burnt, or otherwise 'played with' product will not be accepted. The product must then be returned in its original packaging with its receipt and a small note including the user name, order number and the reason of the return. The note will help us to serve you better and improve our products. Reimbursement will be denied for any products which do not conform to the above mentioned conditions.
Customer shall cover the cost of returning the product and need to pay for shipping (if you want a refund instead of a replacement). Shipping fees will only be refunded if the return is a result of a shipping error on OpenELAB’s part.
Since the third-party payment platforms, such as PayPal and Braintree (Credit Card), will charge standard service fees amounting to 3.5% on all processed transactions. For refund orders via PayPal and Braintree, a corresponding deduction of the service fee will be made to cover the associated payment processing.
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