APERA Instruments 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301)

Cheaper yet just as effective as the blue lab replacement probe.

so far so good

I've used this brand longer than any others before needing to replace They work soo good...guaranteed true ph readings

The first one I ordered lasted 6 months, which I thought was pretty good given all of the long term issues associated with inexpensive pH probe technology. Yes, the cord is short but you can extend it with a bnc coax cable. The second one I bought just failed after two months, a bit disappointed. They were kept in KCl storage solution and never allowed to dry out. I like that there is a removable shroud around the glass probe for ease of cleaning. I will order another to keep the experiment going….

So far this is the least expensive, accurate, and durable B*Labss replacement probe I've found! Easy to clean, holds up to rough daily use, and maintains accuracy throughout the calibration duration. Love'em!

This PH pan is very cheap first of all the wire. It’s very short second ball. It gives you off numbers I definitely do not recommend it.

when they work they work well. good substitute for bluelab probes. have received DOA probes before with error issues. These probes also dont last 6 months. Most go dead by 3 months in my experience. however, this company has improved upon their design by adding a piece of plastic in front of the glass bulb to shield it from drops. bluelab needs to do the same.

Only have been using a few days. I will update again should my experience change. I find it stable. I use it permanently in my hydroponic system along with a scientific atlas board and an esp. appears to be well sealed.

La calibracion ha sido rapida y perfecta junto con el liquido 7.0 de la misma marca. Clorador salino funcionando bien en 7,3. El tiempo dira si es buena y cuanto dura. Cuando pase el verano ampliare informacion. Precio muy bueno, bien empaquetado.

Pünktliche Lieferung und angesse Verpackung. Funktioniert mit älteren Dennerle Steuerung. Zur Kalibrierung sollte man mindestens 15 Minuten warten.

Funkade inte alls till vår Hayward Aquarite saltklorinator

Compatible con varios transmisores y de fácil conexión y calibración de campo

Only used a few times so far. Works good. Packaging was good and has a nice plastic container to keep your probe wet. Time will tell if keeps working