RS485/UART to NB-IoT or LTE CAT-M Converter Sensor Node

RS485/UART to NB-IoT or LTE CAT-M Converter Sensor Node

Marsoni

M251S

$139.00

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

RS485/UART to NB-IoT or LTE CAT-M Converter Sensor NodeRS485 UART to NB IoT or LTE CAT M Converter Sensor Node The Dragino RS485 NB or RS485 CB is an RS485 UART to NB IoT or LTE CAT M Converter for Internet of Things solutions. User can connect the RS485 or UART sensor to the RS485 NB converter, and configure RS485 NB to periodically read sensor data and upload via NB IoT or LTE CAT M network to IoT server. RS485 NB can interface to the RS485 sensor, 3. 3v 5v UART sensor, or interrupt sensor. RS485 NB

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Unfortunately I ended up being very disappointed with this purchase, after about two weeks of use, it just stopped performing. Not sure what happened but it just stopped releasing the ball and I don't know why, it had no flexibility left to it. I'm not doing a very good job of trying to explain why it quit working but suffice it to say, it became useless after a couple of weeks. Broke my neighbors dog's heart, lol.

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Reviewed in the United States on November 20, 2025

Verified Purchase

Amazon Customer

Battle Creek, US

★★★★★ 5

Perfect ball for dogs!

Size: Medium, Style: Medium (4 Pack), Size: Medium, Style: Medium (4 Pack)

Love these balls for my dog. They have a nice weight to them so you can throw them far. The material is very bouncy, so they do sometimes bounce over my fence, but they are very tough and not easily destroyed / very chew resistant. My dog is ~65lbs, it’s a perfect size for her, and she loves these and regular tennis balls the most. She is still able to squeeze it in her mouth, so it still has some softness / some give for her to enjoy.

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Reviewed in the United States on May 26, 2026

Verified Purchase

Monika

New York, US

★★★★★ 5

Perfect toy for my corgis!

Size: Medium, Style: Medium (4 Pack)

Durable enough for my two corgis. Nonstop chewing cannot destroy these, highly recommend it!

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Reviewed in the United States on May 25, 2026