





Hanna Instruments HI-9810402 HALO2 Wireless Refillable pH Tester for Lab with built-in general purpose electrode
Product details
Perfect for lab use, this tester is ideal for measuring samples that would be a challenge for a standard design pH electrode.
The HI-9810402 can be used as a stand-alone pH tester or can be connected to the Hanna Lab App. Perfect for lab use, it is ideal for measuring samples that would be a challenge for a standard design pH electrode.
Features
- Compact, waterproof casing and automatic pH calibration at up to three points, or five points when used with the Hanna Lab App
- Automatically temperature compensated readings
- The electrode features a non-porous glass body that is easy to clean and withstand harsh chemicals.
- Refillable double junction design 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.
- 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.
- Spherical tip electrode provides maximum surface for accurate measurements.
- 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
About the HALO2s
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.
Specifications
| Range | |
|---|---|
| pH | 0.00 to 14.00 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 | ±0.02 pH |
| Temperature | ±0.5°C |
| Calibration | Up to three points or five points*Automatic buffer recognition with standard buffers |
| Temperature Compensation | Automatic (ATC) or Manual (MTC) |
| Electrode | Built-in probe for specific application |
| Body material | Glass |
| Glass | High temperature |
| Junction | Ceramic |
| Reference Cell | Double, Ag/AgCl |
| Electrolyte | 3.5M KCl (refillable) |
| Tip/Shape | Spheric, Ø9 mm |
| Outer diameter | 12 mm |
| Length | 120 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 206 x 21mm |
| Weight | 60g |
| Ordering information | HI-9810402 (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), Electrolyte refill solution (30mL), pipette, 3V lithium battery – CR2032, instrument quality certificate and instruction manual |

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.