DDS75 NB-IoT LTE CAT-M Waterproof Distance Detection Sensor

DDS75 NB-IoT LTE CAT-M Waterproof Distance Detection Sensor

Marsoni

M251S

$149.00

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

DDS75 NB-IoT LTE CAT-M Waterproof Distance Detection SensorDDS75 NB IoT LTE CAT M Waterproof Distance Detection Sensor The Dragino DDS75 NB or DDS75 CB is an NB IoT or LTE CAT M Distance Detection Sensor for the Internet of Things solution. It is designed to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data.

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I always buy this kind of watch, and so does my adult daughter. It has a timer, 3 alarm settings, push button light, easy to set, and other features that I don't use, like, track timers, Occasion settings, Beeps & Chimes, On or Off. I use it for timing my Laundry, taking pills, timing things in the kitchen. I just can't live without it! My daughter used it for timing on her Breast Feeding Schedule, so no matter what room she was in, or what she was doing, she would always hear that alarm!

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Reviewed in the United States on April 23, 2026