Description
Waterproof pH and Temperature Meter PH-035H with Calibration Buffer Solutions
Accurate pH measurement is an important part of brewing, helping you monitor mash pH, brewing liquor, wort, beer, and cleaning solutions with more confidence than pH test strips. This PH-035H waterproof digital pH and temperature meter gives clear, fast readings with 0.01 pH resolution and automatic temperature compensation.
This model includes two calibration buffer solutions, pH 6.864 and pH 4.003, allowing you to calibrate the meter before use and maintain reliable readings over time.
Product Features
- PH-035H waterproof pH and temperature meter
- Includes pH 6.864 and pH 4.003 calibration buffer solutions
- Digital dual display showing pH and temperature
- 0.00–14.00 pH measuring range
- 0.01 pH resolution
- ±0.01 pH accuracy
- Automatic temperature compensation from 0–50°C
- Temperature display range of 0–50°C
- Switchable temperature display between °C and °F
- 2-point calibration with auto buffer recognition
- Replaceable electrode
- Auto-off after 16 minutes
- Protective cap included
- Compact handheld design
Why Use a pH Meter for Brewing?
pH affects mash efficiency, enzyme activity, flavour balance, fermentation performance, and final beer stability. Measuring pH accurately allows brewers to make better decisions when adjusting water chemistry, using brewing salts, adding acids, or checking cleaning and sanitising solutions.
For all-grain brewing, mash pH is one of the most useful measurements you can take. A reliable digital meter helps you brew with more consistency and repeatability.
Specifications
| Specification | PH-035H |
|---|---|
| pH Range | 0.00–14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.01 pH |
| Temperature Range | 0–50°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.1°C |
| Automatic Temperature Compensation | 0–50°C |
| Calibration | 2-point with auto buffer recognition |
| Battery Type | 3 × 1.5V AG13 |
| Auto-off | After 16 minutes |
| Dimensions | 188mm × 35mm × 35mm |
| Weight | 98g |
Included
- 1 × PH-035H waterproof pH and temperature meter
- 1 × pH 6.864 calibration buffer solution
- 1 × pH 4.003 calibration buffer solution
- Batteries
- Protective cap
Calibration
For accurate results, calibrate the meter before first use and regularly afterwards. This kit includes pH 6.864 and pH 4.003 buffer solutions for 2-point calibration.
Rinse the electrode with distilled water between calibration solutions to avoid contamination. The meter should also be recalibrated after long storage, frequent use, or whenever maximum accuracy is required.
Operation
Remove the protective cap and rinse the electrode with distilled water. Immerse the probe in the liquid to be tested, stir gently, and allow the reading to stabilise. After use, rinse the electrode again and replace the protective cap.
For brewing use, we recommend testing a cooled sample rather than placing the electrode directly into hot mash or boiling wort. This helps protect the electrode and gives a more stable reading.
Suitable For
- Mash pH testing
- Brewing liquor and water treatment checks
- Wort and beer pH testing
- Cleaning solution checks
- General liquid pH testing
- Home brewing and small-scale brewing use
stephen gale (verified owner) –
Seems well built and the display is easy to read. Using a PH meter is going to be more reliable and accurate than reading paper test strips. At this sort of price, you can’t go far wrong. However, the instructions included have been (almost) translated from Chinese. I have attempted to read them a couple of times and I can’t say that I am 100% confident on how to calibrate this device! I haven’t owned a PH meter before, so I don’t have much experience to go on. Maybe someone could post some calibration instructions on the product details page. Also be aware that this unit is not supplied with the buffer solutions required to calibrate the device but you can acquire these easily elsewhere.
Justin Worthington (verified owner) –
Have to agree with everything Stephen has said above. Instructions could be better translated and easier to understand, also, buffer solution should be recommended as part of the purchase.
Martin Farrimond (verified owner) –
As the previous reviewers have commented – the instructions are pretty much still Chinese. I have tried to translate them into useable English. Mine was supplied with the 3 packets of buffer solution, but they are readily available on ebay.
That aside, I’m pleased with the meter. It’s probably not the world’s most accurate or stable over time, but it’s good enough for checking mash pH.
Robert Neale –
Brilliant, thanks Martin, I have posted your translated instructions on the product page.
Mark Baker (verified owner) –
Great product in my view. Holds calibration well. To calibrate this just put into the buffer you want for 30 s or so and make sure it’s close to 20 Deg C. Then press CAL for 3 seconds and it calibrates to the buffer value. Then repeat with the next buffer
Johann Delport (verified owner) –
Good little meter. Does come with the buffer solutions. As everyone have said the instructions included are about as useful as a peephole in a glass door. If only I looked at the product page to see the brilliant translation. I did however find the following youTube video very helpful: https://www.youtube.com/watch?v=UwgElbvbO84
Aleksei Tsikov (verified owner) –
Easy to use and seems to be more or less reliable, however not sure about buffer solutions quality. Calibrated my meter with a deionised water first which should be somewhere 6.8-6.9 because of CO2. Then proceeded with 6.86 and 4.01 solutions, checking with deionised and tap water after each calibration. Values were in a ballpark, and changed very slightly after each iteration. However after I dissolved 9.18 buffer, meter showed something around 9.4, and after I calibrated it, further readings for deionised and tap water were way higher.
Ended up recalibrating with deionised water instead of 6.86 buffer.
Adam Purdue (verified owner) –
Worked the first time I used it. Second time it filled up with wort. Straight in the bin
Robert Neale –
Hey Adam, Sorry for the issues with the PH Pen. Not heard of this issue before with this device. I will add a new one on your next order.
Paul Elliott (verified owner) –
Works great however after not using it for a year I can’t turn it on with the button unless I remove the batteries and insert them and the meter will be on. Strangely the button will turn it off. Minor annoyance.