Visit store
Items for sale
About us
Product Details
The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor.
This sensor is ideal for environmental sensing and data logging and perfect for a weather stations or humidor control systems.
All you need is two lines for I2C communication and you’ll have relative humidity readings
and very accurate temperature readings as a bonus!
There are only four pins that need to be hooked up in order to start using this sensor in a project.
One for VCC, one for GND, and two data lines for I2C communication.
This breakout board has built in 4.7k pull up resistors for I2C communications.
If you’re hooking up multiple I2C devices on the same bus, you may want to disable these resistors.
It’s summer and you’re sweating and your hair’s all frizzy and all you really want to
know is why the weatherman said this morning that today’s relative humidity would max
out at a perfectly reasonable 52% when it feels more like 77%.
Enter the HTU21D-F Temperature + Humidity Sensor – the best way to prove the weatherman wrong!
This I2C digital humidity sensor is an accurate and intelligent alternative to the much simpler
Humidity and Temperature Sensor – SHT15 Breakout It has a typical accuracy of ±2% with an
operating range that’s optimized from 5% to 95% RH. Operation outside this range
is still possible – just the accuracy might drop a bit. The temperature output has
an accuracy of ±1°C from -30~90°C. If you’re looking to measure temperature more accurately,
we recommend the MCP9808 High Accuracy I2C Temperature Sensor Breakout Board.
Such a lovely chip – so we spun up a breakout board that includes the
Filtered version (the white bit of plastic which is a PTFE filter to keep the sensor clean),
a 3.3V regulator and I2C level shifting circuitry. This lets you use it safely with any kind
of microcontroller with 3.3V-5V power or logic. Each order comes with one fully assembled
and tested PCB breakout and a small piece of header.
You’ll need to solder the header onto the PCB but it’s fairly easy and takes only a few minutes even for a beginner.
Board size:1.2x1cm(approx)
Package Included:
1 x HTU21D Temperature & Humidity Sensor Breakout Board Module
Payment Method
Shipping Policy
Returns & Refund Policy
Feedback
Payment Method
EBAY Managed Payment.
But we only
Accept
your
Ebay Address
, please Make sure it’s 100% right.
Payment must be received in 5 business days of auction closing.
Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.
Shipping Policy
1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.
2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders.
3. All package need to wait 30 days,Please take care it.Less than 30 days,we can’t take a refund.
Returns & Refund Policy
All package need to
wait 30 days
(US only n
eed 7-10 days)
,
Please take care it.Less than 30 days,we can’t take a refund
.
If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it.
If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
Feedback
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.