💧 Unlock the power of pure water with precision and ease!
The ORP Redox Meter Tester offers a broad measurement range of -1999 to 1999 mV with 1 mV resolution, featuring simple 1-point calibration for accurate oxidation-reduction potential readings. Lightweight and portable, it’s perfect for professional and home use across aquariums, pools, spas, water treatment, and industrial water quality monitoring.
| Manufacturer | Gain Express Holdings Ltd |
| Part number | ORP-228 |
| Item Weight | 132 g |
| Product Dimensions | 15.49 x 3.1 x 1.57 cm; 131.54 g |
| Batteries | 4 LR44 batteries required. |
| Item model number | ORP-228 |
| Item thickness | 31 Millimetres |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Measuring oxidation-reduction potential (ORP) of water |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
Y**H
product & service
a best seller with great products...
A**E
Not bad, but still uncertain measurement
The media could not be loaded. The price was reasonable, I received it quickly, it has its own box ... In general, the product does not look bad.However, because it has no calibration solution, and none is recommended, the results of my measurements are uncertain. I sell water ionizers and I needed such an ORP meter to demonstrate to my customers the quality of the alkaline water produced by the ionizers that I sell. For this video, I calibrated the ORP meter according to the standard value of the water produced by the ionizer, but normally I have to show a client a neutral calibration.I will buy a calibration solution and then compare the result with the standard values of the water produced by my ionizers.
B**R
Seems to work OK - but is it accurate?
Not sure about this product. Insufficient information given about suitable buffer solution for calibration - just "dip the electrode into the 256mV ORP standard solution", no sources of solution or what it is, is given. A purchased a pH meter from another vendor. It came with sachets of pH 4.01, pH 6.86 and pH 9.18 crystals to mix with distilled water. I read on the internet that pH 4.01 solution is the same as 256mV ORP solution and tried that - but the readings before adjustment were quite different in this solution - so I didn't calibrate with it - but if it was correct then the ORP meter is miles out of calibration. Currently still looking for a "Standard 256mV Solution" before I can trust this tester !!!
S**R
Perfect for keeping Discus
Arrived in a nice storage box, No ORP standard solution supplied to calibrate hence 4 stars (all other manufacturers supply a calibration soultion)
Trustpilot
2 weeks ago
2 months ago
