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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

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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 1501 reviews
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Product Reviews
★★★★★ 5
Best system ever !!
My 12 yr. old Toy Poodle was already trained to a 'piddle pad' , so this system was easy to introduce. I simplly placed her piddle mat in the sturdy sided piddle box and she used it immediately. With a straight lower pad holder, she was peeing at the side and I was constantly having to clean the surrounding floor . Now, it is all contained and she is happy with her new 'piddle place'. And, I am very happy too !!
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Reviewed in the United States on June 3, 2025
★★★★★ 5
Great!
Took my dogs a couple days to get used to using it but works well, great for apartment living !
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Perfect for dachshund
This is the absolute perfect size and with sides. I have one without sides and it's great but my dog has decided to stand on the edge and sometimes pee goes off or poop. Also he will be excited when I get home and try to pee fast and run and it gets on the floor. This will slow him down a little. The grid is almost too small and it holds pee. I have to wipe it everytime with a paper towel. I have a 10lb dachshund. He is long and he has plenty of room. I have 23x23 pads. I fold one side of the extra plastic down on the pad and it fits perfectly. I highly recommend this one!!!
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Reviewed in the United States on March 6, 2024
★★★★★ 1
Not for small dogs
Not meant for small dogs at all. holes are just the size for the nails to slip in and get stuck. my dog tried to walk off pad and ripped his nail off! I do not recommend
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Reviewed in the United States on November 13, 2025
★★★★★ 3
It's nice but...
It's nice but my pup will not go in it to use it.
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Reviewed in the United States on October 19, 2025

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