Waterproof pHep pH Tester The Hanna Instruments HI98107 pHep pH tester is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. This tester keeps things simple with a two-button operation; one for ON/OFF, the other for Calibration. The HI98107 tester features a large multi level LCD which displays both pH and temperature readings simultaneously. The pH readings are displayed with a 0.1 pH resolution and with an accuracy of ±0.1 pH. The pH range of the HI98107 is from 0.0 to 14.0 pH. An exposed temperature sensor allows for rapid automatic temperature compensated pH measurements. Temperature can be set to display in ? or ?. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available. The pH electrode uses a unique reference cell design that utilizes an extractable cloth junction. A clogged junction will typically exhibit erratic readings that will not stabilize. Simply extracting a small portion of cloth from the meter will clear any clog by exposing a fresh, clean surface. The ability to clear any clogging will extend the life of the pH electrode. Calibration is performed by pressing the dedicated calibration button. Once in calibration mode the pH electrode can be calibrated to 1 or 2 points using the pre-programmed standard buffers (pH 4.01, 7.01,10.01). When the standard value is recognized and stability is reached, the meter automatically accepts and stores the calibration value. Setup options include automatic shut off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.
A**N
repeat accuracy
Performs well, dependable
M**
Equipo bastante práctico y funcional
Muy economico
B**5
Great ph pen at a decent price.
I had a simple Hannah ph pen for ten years. Never failed. I accidentally broke it and ordered cheap ph pens from vivosun. They broke every other week after buying around 8 I looked up the brand Hannah I’m surprised it does not pop up when searching on here. You have to type Hanna ph pen. It’s a decent price. I hope it lasts half the time the other Hanna ph pen I got ten years back. It was calibrated already but I decided to calibrate it myself. Easier than than the vivosun ones to do.
D**N
Ridiculous amounts of calibration is was NOT
I wasn't looking forward to having to calibrate the Hanna pH meter frequently... and I wondered how much of a pain it was going to be to use it...Turns out, it's pretty pain free. Granted, I'm only using it to verify pH of fresh water planted aquaria. So for more costly systems (e.g. reef tank) you might opt to recalibrate it more often. Also, my fresh water tanks tend to run around 7.0 pH, so higher (or lower) pH testing may not be similar to my experience.That being said, the Hanna pH meter performs very well. I've used it 20 or so times doing daily pH testing. And I've only had to calibrate it once.The way I get around frequent calibration is simply to verify the reading of 7.0 using the included buffer prior to testing my tank water. And after testing, I immediately put it in RO water to "clean it off"... and finally a quick dip in old 7.0 buffer then I put the cap on for storage.It may not be the recommended procedure but I'm satisfied that it's giving me accurate enough results.
A**R
Constantly out of calibration!!
this thing is unusable!! even right after calibration it's off! worst ph season I've ever come across 😪
T**Y
Easy to use
I use this almost daily to spot PH trends.Fast and Easy 👍🏼
K**
Worth the minuscule investment
Works well reasonably accurate and easy to calibrate
A**W
Unreliable so far
I got this for my reef tank and within days of opening it it’s wildly inaccurate.Reef tank was:LFS reading 7.8 (with their Hanna tester)API test kit 7.8Hanna tester 8.4Sink water says 8.4, I promise it’s not.7.0 calibration solution it said 7.5 before recalibratingFeels high quality for what it’s worth…
M**Z
Précis
Les bandelettes de ph me mettaient des couleurs bizarres et du coup je ne pouvait pas connaître le ph précis de ma piscine . Cet appareil et m'a fait économiser des produits d'entretien de piscine car il est très précis et fiable
J**R
Buen aparato
Construcción de calidad, las mediciones son fiables, cuesta un poco de calibrar, pero una vez calibrado el uso es fácil.
L**L
Très bon produit
Très facile d'utilisation. Il est très précis etfacile à lire que les bandelettes. Hanna Instruments est une valeur sûr. Je conseille.
M**I
Funciona bien
Funciona muy bien y es muy fácil de utilizar. No hace falta calibrarlo y viene con la pila incluida. Creo que da la lectura correcta.El paquete viene bien presentado; en caja y bliset de plástico. Muy contenta
C**N
Buen producto. Mala mensajería
Producto correcto. Entrega fallida y sin posibilidad de contactar con ellos. Tuve que recogerlo en sus oficinas (lo habitual con esta agencia)
Trustpilot
1 week ago
3 weeks ago