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RTR505BL GSM/Bluetooth Multi-functional Data Logger

Marsoni M251S
Sale price$170.76
Pay 4 payments of $42.69 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
RTR505BL GSM/Bluetooth Multi-functional Data LoggerThe RTR50B series allows you to mix and match an array of wireless radio communication loggers with various Base Units or Data Collectors to meet your needs. Logged data can be automatically sent via network or mobile communication to be saved in cloud storage or to a specified location. By combining RTR505BL with various optional modules, it is possible to measure temperature (Pt100 Pt1000, thermocouple sensor), voltage, current (4 20mA), and pulse.
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  • We offer a 30-day return/exchange service after receiving.
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4.7 ★★★★★
Based on 189 reviews
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Jan Boyer
Carnegie, US
★★★★★ 5
Comfort driven
Size: 13, Color: Pastel Pack
These are fantastic and soft in delicate areas. I don't know why I resisted so long. Only underwear I will wear now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
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Verified Purchase
Jennifer Rubin
Chelsea, US
★★★★★ 5
Order one size up.
Size: 13, Color: Pastel Pack
Order one size up. Totally comfortable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
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Verified Purchase
Ashley Hunsberger
Carnegie, US
★★★★★ 5
The cutest backpack!
Size: One Size, Color: Lilac Ditsy Floral
I was worried maybe this backpack wouldn’t last us the school year. I was pleasantly surprised as we are nearing the end of the year. It’s the most adorable pink and purple bag! It is on the smaller side but we’ve still been able to fit a normal sized folder in it plus her extra clothes and snacks with some room still.
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Reviewed in the United States on March 24, 2026
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Verified Purchase
Heather-Leigh Scott
Lexington, US
★★★★★ 5
VERY NICE BUT TOO BIG
Size: One Size, Color: Lilac Ditsy Floral
Let me start by saying its a great product and looked to be made very well. I did have to return it though because it was far too big for my child. Other than size being 1 size fits all with no dimensions given and, yes, somewhat smaller than other backpacks (for adults) it seemed to be a decent backpack. Too bad we couldn't use it but if you have a older kid would would great for.
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Reviewed in the United States on December 5, 2025
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Verified Purchase
Melissa
San Leandro, US
★★★★★ 3
Size too small.
Size: One Size, Color: Beige Leopard
It was too small. Couldn’t fit my everyday planner in it.
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Reviewed in the United States on December 29, 2025

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