Shipping and delivery
We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. 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.
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.
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.
What about customs?
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.
How long does shipping take?
Shipping time varies by location. These are our estimates:
| Location |
*Estimated Shipping Time |
| United States |
10-30 Business days |
| Canada, Europe |
10-30 Business days |
| Australia, New Zealand |
10-30 Business days |
| Central & South America |
15-30 Business days |
| Asia |
10-20 Business days |
| Africa |
15-45 Business days |
*This doesn’t include our 2-5 day processing time.
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 have specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
Refunds & returns policy
Order cancellation
All orders can be cancelled until they are 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.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
- You receive the wrong item
- You do not want the product you have received (but you must return the item at your expense and the item must be unused)
We do not issue the refund if:
- Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
- Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
- Other exceptional circumstances outside the control of tech.diydynamic.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on 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.
Exchanges
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 authorise you to do so.
S***l –
Fast Delivery
M***z –
Very useful
Customer –
Goods arrived quickly and in good order. Would buy from this shop again.
Customer –
Fast delivery
M***a –
Came tightly packed, apparently all right. I haven’t tested it yet.
j***s –
Good packaging, I need to test the pumps
Customer –
Fast Delivery Good Goods.
Customer –
Works fine for my portable greenhouse using a raspi for controller the pump. They needed calibration for each of the sensors, but easy to do.
G***z –
I arrived in the indicated time. Now I’m going to test it with the circuit I’m Building
Customer –
Fast delivery, I will try
u***i –
As described.
I***c –
Product was delivered fast, looks alright, thanks.
Customer –
Item is well protected in the packaged.
D***a –
Comes with no instructions and the diagram (product photos) shows the connections with an Arduino R3 with no specifics of the ports used. Had to research the relay board and schematics to connect to an Arduino Mega. Also there isn’t a firmware, not even for testing, so you have to program your own. All that said, it works and the kit is well packaged. The seller could provide documentation on the hardware and a sample firmware so users could test and review… Good product, good kit. Just bad support, so buyers that are not familiar with programming or hardware research may have a hard time to figure this one out. Seller Is honest though, and the parts are good.
zahidislam2000@gmail.com –
Thank you for your honest feedback! We’ll work on adding documentation and firmware to improve the user experience. 😊
K***h –
Package arrived in good condition, but the hose was 3times buckled, which will not straighten again, have to cut it out! * Sensor version 2.00 with up-to-date TLC555 (CMOS version, not the ancient NE555) Mini Pump: * 300hrs? = 3a => max 15min per day * “brushless” = bullshit bingo? * test power: dry run / in water (free run, submerged) 3,0V 88mA 270mA 5,0V 105mA 490mA expect even more current if resistance further increases (e.g. raising the water up and through the pipe, and becoming more dirty over time) but we do not have to run all pump motors at the same time, and after some watering, we have to wait patient for the soil to homogenize, before we make next reading to decide if more water is needed?! putting all four pumps together, with a lot of piping, keeping it submerged to the ground of a water reservoir seems to become an other challenge? – and I agree with one of the other buyers: yes, cables are way too short!
zahidislam2000@gmail.com –
Thank you for your detailed feedback! We appreciate your insights and will consider improvements for future versions. 😊
a***r –
Items arrived without issues. **Note to Everyone** The package does not include coding instructions. I’ve successfully been able to code 3 relays for what i need. The code can be easily edited to include more relays if needed. you can find the code here at https:// pastebin .com/zEUFsAnd
zahidislam2000@gmail.com –
Thank you for sharing your experience and the code link! This will be helpful for other users. 😊