VIVOSUN Digital pH Meter, 3-in-1 TDS/EC/Temperature Meter, 3-in-1 Soil Moisture/pH/Light Tester Combo for Home, Garden and Hydroponics

Great price for all three

Fast service and works well .

Everything works except for the three-in-one soil moisture light and pH tester the moisture seems to work and the light meter may work I can't disprove it because it's in lux instead of ppfd but the pH tester does not work it always says 7 to 8 even when I mixed a 4.0 solution

Had the same issue alot of others had. Its slighty off even when its factory calibrated out the box they did it lol.. which is why i gave it a 4. But where talkin .01 so no big deal. All in all for the price .. and the money i had at the time.. i got em they work i still use em today..wish they were waterproof but thats why they make those too. Which im gonna get from vivosun. Cuz they are good pens. Just need to get that accuracy better and theh be solid a.f

Good for the price great for pools and spas and beginner gardeners. Would recommend other readers for more advanced and professional use. I found the ec meter hard to read for my use.

What do I like about this kit? NOTHING. To begin with, they aren't waterproof. What kind of idiot designs a product that is to be immersed in liquids, but doesn't make it waterproof? There isn't even a line on the devices to illustrate where the sensitive electronics begin. That information is pointed out on a slip of paper included with the device. It wouldn't cost the company more then 5 cents per unit to use silicone to waterproof them, so it's just a case of cutting corners for maximum profit. But that wouldn't be the end of the world. Sure, it's a dumb decision, but it isn't necessarily a deal breaker. And you could replace these every month for two years before you hit the amount of money that you would spend on a laboratory grade pH tester. So, there is that. The major problem is that it simply isn't accurate. The pH tester seems to calibrate just fine, but every time that I test the same sample, I end up with a different number. It's the same sample, how can the numbers change every time I dip the sensor in the water? And I don't mean, "It was 5.7, and now it's 5.9." I mean, "It was 5.7, and now it's 4.8, no, now it's 6.2, wait it's 5.3" ***sigh*** Then there is the device settings itself. The backlight shuts off after two minutes, but it takes up to 5 minutes to get an "accurate" reading according to the manual. The dark gark grey text on a light grey background isn't super easy to read after the light turns off. Pushing the power button will turn the light back on. Or maybe it will turn the device off. The R-N-G Gods will determine that for you. The device has a 5 minute auto-shutdown that can't be disabled. What kind of idiot designs a device that shuts off at the EXACT MOMENT it is supposed to achieve an "accurate" reading? And, then, when you restart the process you get a different result. This is the only Vivosun product that I own. It will be the only Vivosun product that I EVER own. You get what you pay for. And what Vivosun has taught me with this device, is that Vivosun provides cheap trash to unsuspecting customers. I'll be purchasing a proper waterproof, lab grade pH tester. If I'm gonna get high quality hydro grows, it only makes sense to invest in decent equipment.

Perfect for testing the soil of plants

the meters are great . only issues is constant calibration of the ph water meter . which if you want good reading calibration is important but this one seems to need a little extra calibrating . other than that i get good consisent readings from all tbe devices the tds meter and the soil multi meter .

Very good quality and accurate. Easy calibration.

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Sent the item back because the soil tester and ph wasn't working and the water PH tester had dried buffer powder suggesting it was a returned item before sending it to me. Waste of time I can't get back so I sent them back to seller.