Hanna Instruments-12922 HALO® Wireless Soil pH electrode
HALO® Wireless pH electrodes make pH testing simple. Take direct soil & soil slurry pH and temperature measurements using the Hanna Instruments-12922 specifically designed for agricultural tasks.
The HALO® has a triple ceramic junction in the outer reference cell, built-in temperature sensor, and a conic pH sensing tip made with low-temperature glass. All readings are transmitted directly to your mobile or tablet device (with Hanna Lab App) or the edge® blu.
HALO® Wireless pH electrodes make pH testing simple. Take direct soil & soil slurry pH and temperature measurements using the Hanna Instruments-12922 specifically designed for agricultural tasks.
The HALO® has a triple ceramic junction in the outer reference cell, built-in temperature sensor, and a conic pH sensing tip made with low-temperature glass. All readings are transmitted directly to your mobile or tablet device (with Hanna Lab App) or the edge® blu.
Hanna Instruments-12922 HALO® Wireless Soil pH electrode
The Hanna Instruments-12922 HALO® is a glass pH electrode that incorporates Bluetooth Smart (Bluetooth 4.0) wireless technology with an application-specific design. It has many features that make it ideal for use in agricultural applications, specifically in direct soil & slurry measurements.
These features include:
- Low-temperature (LT) glass, conical tip, glass body, and triple junction design
- Easily connects to the Hanna Lab App at the press of a button via Bluetooth® wireless technology
- Visible from a distance, the LED “halo” light flashes to indicate the status of the probe
- The HALO’s CR2032 lithium ion battery is easily replaceable and lasts for approximately 500 hours
Low-Temperature Glass Formulation
The Hanna Instruments-12922 is suitable to use with samples that measure from -5 to 70°C.
Conical Glass Tip
The conical shaped tip design allows for penetration into solids, semi-solids, and emulsions. The Hanna Instruments-12922 is ideal for the direct measurement of pH in soil and soil slurries.
Glass Body
The glass of the Hanna Instruments-12922 is resistant to many harsh chemicals and is easily cleaned. The glass body also allows for a fast transfer of heat to the internal reference electrolyte. The mV response generated by the reference cell is temperature dependent. The faster equilibrium is reached, the steadier the reference potential.
Triple Ceramic Junction
The triple ceramic junction allows a higher flow rate of electrolyte from the reference cell into the measurement sample. The increased flow rate of 40 to 50 μL/hour provides greater continuity between the reference electrode and the indicating electrode.
Refillable
The Hanna Instruments-12922 features a refillable probe. A secondary reference chamber is filled with Hanna Instruments-7082 3.5M KCl. When using a refillable pH electrode the fill cap should be removed before calibration and measurement in order to create positive head pressure in the reference cell. This allows for a higher flow rate of electrolyte through the outer junction resulting in a faster and more stable reading.
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.