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- USA
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Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
For Your Every Summer RSVP, with Code: SUMMER15
Description
Produino 5Pcs SHT21 HTU21 Digital Humidity Temperature Sensor ModulesForm Color Blue (5 PCS) Model GY 21 SHT21 Quantity 5 piece Material PCB Application * Homes, basements and HVAC systems for measuring humidity; * People with physical conditions sensitive to humidity; * Home ventilating, heating and air conditioning systems; * Meteorology stations to predict or check weather temperatures; * Gardens or greenhouses to check humidity and temperatures; Working Voltage 5 V English Manual Spec No Download Link NO Packing

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 2202 reviews
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Product Reviews
★★★★★ 5
Great product
Size: 4 Pack
Great quality, great product. Real heavy duty. Have ordered them twice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Just what I needed.
Size: 6 Pack
A little on the pricey side, but really sturdy and well made. I needed an odd size set of brackets to fit a shelf in an awkward spot. I wasn't sure I'd find brackets with arms long enough for my needs without using some ugly white hardware-store shelf brackets. These look great, are very heavy duty, and just what I needed. I debated the purchase because of their initial cost, but once I got them I realized their quality warranted the premium price. Overall I'm very happy with them.
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Reviewed in the United States on June 26, 2024
★★★★★ 4
helf Bracke
Size: 4 Pack
Just what I needed
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Make sure and screw them into a stud, otherwise the shelf is very flimsy
Size: 10 Pack, Size: 10 Pack
These are amazing!!!
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Reviewed in the United States on December 26, 2025
★★★★★ 5
Worked Perfectly
Size: 4 Pack
They worked perfectly, I use them to hold a hutch inside a trailer to keep it from moving since it was not gonna be mounted against the wall. I use three of the four of these from the frame of the roof for the trailer down to the top of the hutch and they worked excellent
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025

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