Bluelab® ppm Pen — Now Bluelab® Conductivity Pen

Bluelab® ppm Pen — Now Bluelab® Conductivity Pen

Marsoni

M251S

$97.00

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

Bluelab® ppm Pen — Now Bluelab® Conductivity PenMeasures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful calibration indicator and calibration is optional. Fully waterproof. Auto off function and hold reading function. Automatic temperature compensation. Units: EC, 500 ppm, 700ppm, C, F. Range: 0. 010. 0 EC, 05000 ppm (500 ppm), 07000 ppm (700 ppm) and 050C 32122F. Resolution: 0. 1 EC, 10 ppm (500 ppm), 10 ppm

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the watch does a good job to display all the info I need at a glance, time, day, and date. No problems holding up to heavy wear and cleans easily. The controls are somewhat confusing but I can make it work with a bit of trial and error. After 2 years with mine the band broke and I bought a replacement watch since I'm so used to this one and they're cheap as dirt.

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Reviewed in the United States on February 16, 2026

Verified Purchase

Michael G

Whiting, US

★★★★★ 5

Geat Watch, Simple To Use

Color: yelllow

Great, comfortable watch. Keeps good time. Easy to read face. No bells and whistles, just a good watch.

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Reviewed in the United States on January 26, 2026

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doubleguru

Los Angeles, US

★★★★★ 3

cool night time electro backlight

Color: black

decent digital watch big display for older folks, but gains time about 1 /2 seconds a day!

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Reviewed in the United States on November 26, 2025

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Josh

Lowell, US

★★★★★ 5

Better Than I Hoped

Color: blue, Color: blue

I have had Apple Watches for the past 6 or so years. I wanted to try out a basic watch again. I looked at digital watches but some were still over $100. I thought I’d give this watch a try as the price made it a pretty low risk. No notes. It looks great and does what watches are supposed to do. I wish it had a vibrate so I could use it as an alarm clock without waking up my wife.

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Reviewed in the United States on May 19, 2026

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Theresa F Charles

Birmingham, US

★★★★★ 5

Watch

Color: green

It is a good watch.

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Reviewed in the United States on April 20, 2026