




Hanna Instruments HI-9810422 HALO2 Wireless pH Tester with built-in general purpose electrode
Accurate and easy-to-use, HALO2 pH Tester is ideal for general use thanks to its durability.
HI-9810422 HALO2 Wireless pH Tester with built-in general purpose electrode ideal for harsh chemicals
The HI-9810422 can be used as a stand-alone pH tester or can be connected to the Hanna Lab App.
Features
- Compact, waterproof casing and automatic pH calibration at up to three points, or four points when used with the Hanna Lab App
- Automatically temperature compensated readings
- The electrode features a PEI resin body that is easy to clean and resistant to many aggressive chemicals.
- Built-in temperature sensor at the tip of the pH electrode allows for rapid determination of the sample temperature and a high-accuracy temperature reading.
- Fast, stable readings thanks to the double junction design which presents a silver-free electrolyte solution interacting with the sample, making the electrode less susceptible to clogging and guaranteeing a fast response and stable reading
- Maintenance free – Gel-filled reference with no fill solutions required. Other than routine calibration and cleaning, this probe is maintenance free.
- Stability tagging sends tagged results to the Hanna Lab App only after measurement stability has been achieved.
- The Hanna app is available on the App Store® and Google Play
HALO2 Wireless pH meter with Bluetooth® Smart Technology includes a dual-level LCD and temperature measurement for automatic temperature compensation. HALO2 pH probes can be used virtually anywhere as their versatility and ease of use will revolutionise the way pH is measured.
Accurate and easy to use, HALO2 wireless pH Testers are ideal for measurements in samples that would be a challenge for standard design pH electrodes.
The meters with their specialised electrodes can measure in the lab or out in the field. Then specialised applications: Cosmetic Creams, Soil, Wine, Beer, Meat, Chocolate, Bread and Dough, Cheese, Milk, Sushi, Skin, Leather and Paper.
Bluetooth Versatility
Connect to the Hanna Lab App via Bluetooth® wireless technology (10m range). The Bluetooth icon on the HALO2 LCD indicates the probe is active and transmitting.
One Button Sample Tagging
Pressing the button on the HALO2 pH probe or the probe icon in the Hanna Lab App will tag sample data for easy reference.
Easy calibration
HALO2 can be placed right into our calibration buffer sachets for easy calibration. Using a Hanna calibration sachet ensures your buffer is always fresh.
Easy to replace battery
HALO2’s CR2032 lithium ion battery is easily replaced and lasts for approximately 1,000 hours.
Your best choice for wireless HSG282 compliance
Complying with HSG282 is a great idea to gain peace of mind if you’re operating hot tub or spa pool facilities for customer access. To achieve compliance, using a suitable HSG282 pH tester is the ideal first step. The HALO2 is the ideal match for effortless recording, making it easy to keep your results safe and sound for five years in line with the HSE’s 2017 guidelines.
Accurate, practical and highly portable, the HI-9810422 allows you to measure pH in seconds in your hot tub or spa pool. Once you’ve taken your reading, that information is sent directly to the Hanna Lab App, with no extra steps required. Simple.
Bluetooth connectivity and simple operation make it easier than ever to comply with HSG282 legislation, protecting your customers and your business from the risk of sickness. Accurate pH readings are essential to keep your pool chemistry in proper balance with legionella and other serious pathogens multiplying in warm, agitated water.
Want to know all there is to know about HSG282 regulations? Read our complete guide online now for all the details.
Specifications
| Range | |
|---|---|
| pH | 0.00 to 12.00 pH |
| mv* | pH/mV conversion |
| Temperature | -5.0 to 80.0°C |
| Resolution | |
| pH | 0.01 or 0.1 pH |
| mV* | 0.1 or 1 mV |
| Temperature | 0.1°C |
| Accuracy | |
| pH | ±0.05 pH |
| Temperature | ±0.5°C |
| Calibration | Up to three points or four points*Automatic buffer recognition with standard buffers |
| Temperature Compensation | Automatic (ATC) or Manual (MTC) |
| Electrode | Built-in probe for specific application |
| Body material | Polyetherimide (PEI) resin |
| Glass | Low temperature |
| Junction | Ceramic |
| Reference Cell | Double, Ag/AgCl |
| Electrolyte | Gel |
| Tip/Shape | Dome |
| Outer diameter | 12 mm |
| Length | 100 mm |
| Battery type | CR2032 3V Lithium |
| Battery Life | Approximately 1000 hours (500 hours with Bluetooth enabled) |
| Environment | 0 to 50°C; |
| IP rating | IP65 |
| Dimensions | 51 x 175 x 21mm |
| Weight | 50g |
| Ordering information | HI-9810422 (HALO2) is supplied with a starter kit consisting of pH 4.01 buffer solution sachet (2), pH 7.01 buffer solution (2), cleaning solution sachet (2), Electrode storage solution (dropper bottle), 3V lithium battery – CR2032, instrument quality certificate and instruction manual |
| * | Readings available with Hanna Lab App |

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.