D20S NB-IoT LTE CAT-M Waterproof Outdoor Temperature Sensor

D20S NB-IoT LTE CAT-M Waterproof Outdoor Temperature Sensor

Marsoni

M251S

$119.00

Get it in 3 business days with 1 day shipping. Friday, May 29

D20S NB-IoT LTE CAT-M Waterproof Outdoor Temperature SensorD20S NB IoT LTE CAT M Waterproof Outdoor Temperature Sensor The Dragino D20 NB and D20S NB is a NB IoT Temperature Sensor for Internet of Things solution. D20 NB D20S NB will convert the Temperature reading to upload the sensor data send to IoT platform via NB IoT network. The temperature sensor used in D20 NB D20S NB can measure 55C ~ 125C with accuracy 0. 5C (max 2. 0 C). D20 NB D20S NB supports temperature alarm feature, user can set temperature

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Like most people I have tried all kinds of pillows to receive my stiff neck--to no avail. I decided to spend the extra money on this (since it was returnable) expecting it not to deliver, but in hopes that it would. I am happy to say the pillow provides great support, yet is fluffy and malleable. It looks a little flat out of the box, but give it an hour or so and it expands to full "fluff". The pillow is very comfortable, provides amazing support despite its soft, fluffy feel. Not being sculpted or rigid foam, it is easy to adjust and get the right support. Somehow it works! I have not had a stiff neck since I bought this. I did add about half the bag of extra material, but removed some because it was a little too much for me. The stuffing is clean, uniform and looks pristine. It comes with a beautiful pillow case that is thick and smooths out any "lumps" (which there aren't anyway because the filling is so soft and uniform.) I plan to order another one for our other home. Highly recommend.

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Reviewed in the United States on February 12, 2026

Verified Purchase

Stephanie

Carnegie, US

★★★★★ 5

Great quality, not cheap but totally worth this price!

Size: King

I bought this pillow for my husband because the other I’ve purchased have gone flat. So far he is loving this pillow. It has great loft and comes with extra to adjust if necessary. I’m going to purchase one for myself as well! It is extremely comfortable!

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Reviewed in the United States on January 8, 2026

Verified Purchase

CGB

Whiting, US

★★★★★ 4

You have to reposition to stay cool

Size: Queen

It's okay...it isn't much better than other cooling pillows I have had. If I had known you can't wash this pillow, only the outside cover, I would not have paid so much. The cover is cool to touch but the heat from your head will penetrate the pillow and I am constantly having to turn it over. So it is ok but way overpriced.

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Reviewed in the United States on August 14, 2025