780 in stock
3.0 – 4.9 Inches
PWM1 Pulse Frequency Signal Generator
I like this, but I want another Color or other. Do you have other options?
You can see all the available variations of our on the product page. However, before confirming your order, make sure to double check it.
Does this product give off any smell that could put me off?
Judging by the experience of the previous buyers (and our own knowledge of the product manufacturing technology), we can assure you there won’t be any problems with smell from the product.
Is the purchase tax-free?
Taxation is defined by your location. Therefore, you will see the tax value (if applicable) on the checkout page that shows the total cost of your order.
I have doubts about whether this is affordable.
Please, note that you’re unlikely to find an offer that is as tempting as this one. It’s only up to you to take the decision, but we’d like to remind that the number of goods is limited.
Don’t you mind if I post some photos of this product in my blog?
We are always happy when our customers share photos and videos of our goods online, so enjoy your new product to the fullest!
Can I share my own product feedback?
Your opinion about our products is really important for us. That’s why we’ll be happy if you share it with other people.
Why when I want to order a Book from your website it is taking me to Amazon website?
We are an affiliate of Amazon Books. All books listed on our website are fulfilled by Amazon.com. So book orders and any other items you order on the Amazon.com website are processed on Amazon.
Do I need to open an account on Amazon website to order books?
If you find any book on our website that you want to order, just click on the Buy Now button. It will direct you to the Amazon website. If you don’t have an account on Amazon, don’t worry. As you proceed to the checkout, you can create your account then. Creating an account will allow you to track your orders on Amazon.
What if I order several units of the same product? Will they arrive one by one or as a single delivery?
When you order multiple units of the same item, they arrive together (even if every unit is packed separately). So you won’t have to wait for multiple deliveries at different days!
Are your packages safe enough?
We use all the possible methods of securing your packages because it’s our greatest responsibility to protect them from damage.
Will the shipping time change depending on the payment option I use?
The payment method you choose won’t influence the order delivery time. So choose the method you find the most comfortable.
How can I contact you to learn more about my order?
You can easily contact us through any of the contact channels listed at the bottom of the page. After that, we’ll reach out to you at short notice and answer all your questions.
Can I just go and buy the identical ones offline?
Finding the same in a regular store is only likely if someone resells these products. However, it usually means a higher price.
What are the points which make you different from your competitors?
We cherish our reputation and want our clients to keep coming back. Therefore, we don’t deceive customers and cash in on them. We don’t inflate our prices and don’t sell items of poor quality.
We truly believe in the best customer support, meaning we will do whatever it takes to make sure you have a positive purchase experience. We respond to emails within 24 hours and always make sure all your concerns are answered ASAP.
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
How much do you charge for shipping?
We provide free shipping to over 200 countries around the world with some exceptions
Will I be charged any shipping, customs or duties fees?
No, the price you see is the price you pay – you won’t be charged any extra fees. We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
When will my item ship?
If you order an in-stock item your order will ship within 3-5 working days.
How do you ship packages?
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
How long does shipping take?
Shipping time varies by location. These are our estimates:
Estimated normal shipping lead-time. Subject to slight delays due to Covid-19 restrictions.
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you’ve specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
All orders can be cancelled until they are marked completed (shipped). If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
We do not issue the refund if:
*You can submit refund requests within 15 days after the guaranteed period for delivery has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorize you to do so.
We’re a company with a customer-obsessed culture and try to meet and exceed your expectations every time you shop our store. Your opinion is our biggest drive for improvement. Feel like a true insider with our exclusive offers and closed promotions.