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bl bluelab cal sol'n ph4.0 500ml


Price: $19.99 + $33.18 Shipping
In stock
Description
This Bluelab HD4CAL500 calibration solution pH 4.0 500ml is essential for the calibration of pH and testing the cleanliness of the conductivity and temperature probe. The Bluelab solutions are manufactured specifically to the calibration process and referenced to high class laboratory standards. To insure an accurate reading, pH measuring equipment must be cleaned and calibrated regularly. pH readings are calibrated to pH7.0 first then to pH4.0. Bluelab HD4CAL500 solution must be stored with lids securely tightened. Evaporation will cause salt content in the solution to rise, decreasing the validity of the solution if no lid is replaced after use. This solution must also be in a cool place away from direct sun and heat, and away from children.
$19.99 + $33.18 Shipping
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Product details
Product Dimension: 20.32 x 20.32 x 15.24 cm
Shipping Weight: 1.25 Kg
SKU: 1357
Date first available: October 30 2015
Customer reviews: Be the first to review this item
Bestsellers Rank: #6 in Measuring Device
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Dan Shay

  

April 21, 2016

Verified Purchase

I bought the 4.0 and the 7.0 and they work just fine but, I was a little disappointed to see that these bottles have to be used up within 3 months or discarded once they've been opened, (according to the label anyway). While I use my Bluelab meter a lot, I don't use it nearly as much as some people do, it seems like overkill to calibrate my meter often enough to use up these bottles in that time.
I guess I'll have to look for smaller bottles next time I need some.

richieri1318483

  

March 12, 2021

Verified Purchase

I would've brought the Atlas solution combo it was cheaper . Since it didn't go though , the price on this was great . I brought the 7.0 @ the grow store , you don't use very much so you get your money's worth . It's used only once a month it'll last 5 or 6 months @ least

Darrell Lemke

  

May 20, 2015

Verified Purchase

I use nothing but Blue lab for all of my Ph and PPM/EC monitoring and love their consistent accuracy. Got to take care of your equipment and it will last much longer. I use nothing but BlueLab supplies.

Tyler

  

October 21, 2019

Verified Purchase

Just what I needed. Exactly what's advertised is what you get.

Peter Hackett

  

February 26, 2015

Verified Purchase

I would recommend. Great for my home organic herbs.

KImberly

  

September 05, 2017

Verified Purchase

It does what it says will do. It works perfectly.

Joan P.

  

August 30, 2015

Verified Purchase

Worth every cent. Calibrate monthly (minimum).

Robert Hollen

  

December 16, 2018

Verified Purchase

product as it was supposed to. No problems

Robert K.

  

October 09, 2016

Verified Purchase

What can I say it's calibration solution

JMaC

  

November 23, 2017

Verified Purchase

The only one I trust to be accurate.

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