Cheap 3 in 1 ph, ppm, and temp pens?

Has anyone tried any of these? The reviews seem to be filled with a lot of people who don't know how to use ph pens or people who used this as a waterproof product when it is not.

There are a few more but they all look like the exact same product.



This one DOESN'T come with batteries.

That 1st one looks pretty decent. I would find out what PPM conversion it uses though. Or get something that reads in EC.

Interesting. Only one way to find out I guess. I'm interested because I always used separate devices.

So they have 3 versions it seems for the different ec,TDS. They all basically look the same so I would assume they all come from one place.

I added one to my shopping cart on amazon and it offered a 3 year warranty plan which I thought was odd. The ebay listing below also offers a 1 year plan. Not saying you should get a warranty, just maybe it is actually good if someone is willing to put a warranty on it.

Thats normal for Amazon. There are many products that'll offer you an extended warranty.

Again, That 1st one you posted looks good enough, for the price. But no matter which one you go with make sure you keep it stored properly. Make sure the pH probe is ALWAYS wet. I keep mine in 4.0 calibration solution.

NeWcS said:

Thats normal for Amazon. There are many products that'll offer you an extended warranty.

Again, That 1st one you posted looks good enough, for the price. But no matter which one you go with make sure you keep it stored properly. Make sure the pH probe is ALWAYS wet. I keep mine in 4.0 calibration solution.

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I don't want to be the guinea pig. I'll just tape my PH and EC pens together.

Teag said:

I don't want to be the guinea pig. I'll just tape my PH and EC pens together.

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lol. Im sure you would be fine.
Here's what I like to use for pH;

And EC:

or

I like you can change the probe on the pH pen. That way you're not having to buy new meters every few years.

ebcrew said:

Interesting. Only one way to find out I guess. I'm interested because I always used separate devices.

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Teag said:

Has anyone tried any of these? The reviews seem to be filled with a lot of people who don't know how to use ph pens or people who used this as a waterproof product when it is not.

There are a few more but they all look like the exact same product.

Wiztech Digital PH Meter with ATC: 3 in 1 PH TDS Temp - High Accuracy Pocket Size PH Tester 0.00-14.00 PH Measurement Range: Amazon.com: Industrial & Scientific

Wiztech Digital PH Meter with ATC: 3 in 1 PH TDS Temp - High Accuracy Pocket Size PH Tester 0.00-14.00 PH Measurement Range: Amazon.com: Industrial & Scientific

www.amazon.com

This one DOESN'T come with batteries.

Amazon.com: Water Quality Tester, KKmoon Mini Professional 3 in 1 Water Quality Tester Multi-parameter Water Quality Monitor pH & TDS Meter Acidometer Water Quality Analysis Device: Garden & Outdoor

Buy Water Quality Tester, KKmoon Mini Professional 3 in 1 Water Quality Tester Multi-parameter Water Quality Monitor pH & TDS Meter Acidometer Water Quality Analysis Device: pH Meters - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

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Get a Bluelab or a Hanna and forget about the rest.