ETI 813-513 pH PAL Plus Pocket pH Tester: Fast, Reliable pH Readings for Food, Water and Labs in the UAE
Published 24 October 2026 · ThermoPro UAE · pH Meters

pH affects food safety, how well pool water is disinfected, and how well plants take up nutrients. The ETI 813-513 pH PAL Plus Pocket pH Tester gives you a reading across the full 0 to 14 pH scale with one button. It has automatic calibration and a hold function, all in a 70 g tester that fits in a shirt pocket.
About the ETI 813-513 pH PAL Plus
ETI (Electronic Temperature Instruments) is a UK maker of professional measuring instruments for the food, hospitality and industrial sectors. The pH PAL Plus is its compact digital pH tester. You dip the electrode into a liquid sample, wait for the reading to settle, and read the result to 0.1 pH on an 8 mm LCD. You don't need a benchtop meter, separate probe or cables.
It works in samples from 0°C to 50°C, so it can test chilled brines and marinades as well as warm process water.
Full Specifications
| Model | ETI 813-513 pH PAL Plus |
|---|---|
| Measurement range | 0 to 14 pH |
| Resolution | 0.1 pH |
| Accuracy | ±0.2 pH |
| Sample temperature range | 0°C to 50°C |
| Calibration | Automatic |
| Display | 8 mm LCD |
| Battery | 4 × 1.5V LR44 button cells |
| Battery life | Approx. 150 hours |
| Auto power-off | After 10 minutes |
| Dimensions | 15 × 32 × 170 mm |
| Weight | 70 g |
| Housing | ABS plastic, water resistant |
| EAN | 5024368155535 |
| Warranty | 12 months |
Key Features of the pH PAL Plus
Automatic calibration
The tester recognises the buffer solution and calibrates itself, so you don't have to adjust it by hand. Staff can recalibrate at the start of a shift in a minute or two.
Hold function
Freeze the reading on screen to record it before you lift the tester out of a deep tank, pool or container.
One-button operation
A single button runs the tester, so kitchen, farm and maintenance staff need very little training.
Full 0–14 pH scale
It covers strong acids, neutral water and alkaline solutions, from vinegar-based dressings to cleaning chemical rinses.
Water-resistant ABS body
The sealed ABS housing handles splashes during sampling and wipes clean between tests.
Power saving
Four LR44 cells give around 150 hours of use, and the tester turns itself off after 10 minutes if you forget.
Where the ETI 813-513 pH Tester Is Used
- Food production and HACCP: checking acidified foods, pickles, sauces, dressings and sushi rice, where pH is a critical control point
- Swimming pools and spas: keeping pH in the range where chlorine disinfects well
- Hydroponics and agriculture: checking nutrient solutions and irrigation water
- Aquariums and aquaculture: keeping water stable for fish and plants
- Brewing and beverages: checking mash, wort and finished products
- Water treatment: spot checks on drinking water, RO output and process water
- Laboratories and education: quick checks and teaching
Why pH Testing Matters in the UAE
Food businesses in the UAE work under HACCP-based food safety systems. In acidified foods, pH is one of the main barriers against bacterial growth. If the pH of a batch of pickles or a sauce drifts too high, its shelf life and safety change. A pocket tester makes it practical to check every batch instead of only some of them.
The climate adds pressure. High water temperatures and strong sun push pool chemistry out of balance quickly, and greenhouse and hydroponic farms across the Emirates rely on tightly controlled nutrient pH to grow crops in desert conditions. In both cases, fast and frequent testing is easier than correcting a problem after it appears.
- Calibrate with fresh buffer solution regularly, and always after the tester has been stored for a long time.
- Rinse the electrode with clean or distilled water between samples to avoid carry-over.
- Let the reading settle before pressing hold. Readings take longer in cold samples.
- Keep the electrode moist when stored, as the manufacturer recommends. A dried-out electrode reads slowly and drifts.
- Log the pH, sample, time and your initials so you have a clear audit trail.
How It Compares
The pH PAL Plus is the simple, single-parameter choice. If you test sushi rice every day, the Hanna HI981035 Sushi pH Tester is built for that job. For pool and water work where you also need chlorine, look at the Extech EX800 ExStik 3-in-1 kit. If you need TDS, EC and salinity as well, the 5-in-1 water quality tester covers all of them. For food penetration testing, see the Testo 206-pH2 set.
Frequently Asked Questions
What is the measuring range of the ETI 813-513?
The full 0 to 14 pH scale, with 0.1 pH resolution and ±0.2 pH accuracy, in samples from 0°C to 50°C.
Does it need calibration?
Yes. Every pH tester drifts over time, so calibrate regularly with fresh buffer solution. Automatic calibration makes it quick.
What battery does it use?
Four 1.5V LR44 button cells, which give about 150 hours of use. It switches off after 10 minutes to save power.
Is it waterproof?
It is water resistant and copes with splashes. No IP rating is published, so do not submerge the whole unit.
Simple, pocket-sized pH testing. Order the ETI 813-513 pH PAL Plus from ThermoPro UAE.
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