+44 (0)1525 850 855
Order before 4pm for same day dispatch Weekdays only

In Stock 3 Items available


Accurate and easy-to-use, HALO2 Wireless pH Tester for Leather and Paper is ideal for measurements on flat surfaces, or small volume samples, with the specially designed flat sensing tip.

Hanna Lab App compatible
Built-in temperature sensor

£160.40 (exc.VAT)
£192.48 (tax incl.)
Full Description Specification

HI-9810442 HALO2 Wireless pH Tester for Leather & Paper with built-in electrode

The HI-9810442 can be used as a stand-alone pH tester or can be connected to the Hanna Lab App.


  • 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
  • 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.
  • The electrode features a non-porous glass body that is easy to clean and withstand harsh chemicals.
  • 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.
  • Flat tip – Just one drop of water needed for the sample surface to provide an accurate measurement. Easy to clean.
  • 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.

Read More

 pH0.00 to 12.00 pH
 mv*pH/mV conversion
 Temperature0.0 to 50.0°C
 pH0.01 or 0.1 pH
 mV*0.1 or 1 mV
 pH±0.02 pH
CalibrationUp to three points or four points*
Automatic buffer recognition with standard buffers
Temperature CompensationAutomatic (ATC) or Manual (MTC)
ElectrodeBuilt-in probe for specific application
 Body materialGlass
 GlassLow temperature
 Reference CellDouble, Ag/AgCl
 Outer diameter12 mm
 Length110 mm
Battery typeCR2032 3V Lithium
Battery LifeApproximately 1000 hours (500 hours with Bluetooth enabled)
Environment0 to 50°C;
IP ratingIP65
Dimensions51 x 185 x 21mm
Ordering informationHI-9810442 (HALO2) is supplied with a starter kit consisting of pH 4.01 buffer solution sachet (2), pH 7.01 buffer solution (2), cleaning sachets (2), Electrode storage solution (dropper bottle), 3V lithium battery – CR2032, instrument quality certificate and instruction manual
*Readings available with Hanna Lab App