GroLine Hydroponic Waterproof pH/EC/TDS/Temperature Portable Meter

Tried just about every brand meter and have been using this one for 4 years now. Make sure to stay up on cleaning it, calibrate it at least once a month, and keep it in storage solution.

So nice I got it twice. Would get a third if needed or if one ever dies. I've replaced the probe a few times on the older gen version, it's gotten a little pricey so I just got a new pen.

This is another super quality ph meter from Hanna, who in my opinion has the best, better than Any I’ve tried in 30 years. I’ve had one of their meters for almost 25 years. The one feature they neglected and the only reason for not getting 5stars is NO BACKLIT DISPLAY!!! Some reviews say it does, but without doubt the 9814 does not and that’s sad for a quality piece like this

This is the easiest meter I've used yet. I also have the groline version below this which is the stick kind ($209 model) and this is worth the extra money so far because you dont have to stick your head in the reservoir to try and see the reading. This one also has a bright backlit display unlike the other model and seems to hold calibration longer.

Daría 5 estrellas pero estoy esperando el remplazo, porque este Phmetro vino abierto y hay marcas de que es usado. Quiero recibir este producto sellado como he recibido otros. He comprado varios productos Hanna y todos vienen absolutamente sellados con su plástico, este llegó abierto y es para un envío fuera de Estados Unidos, por lo que quiero asegurarme que llegue bien. Cuando llegue el producto como debería, cambio mi recomendación

As described

I wish it would have been a little less pricey around $200. I like the only one probe concept.

I received an Older model, i bouht this in june 2