Meet the HALO Wireless pH Meter.

Take laboratory grade pH and temperature measurements using your smart phone or tablet.


Wireless pH Meters


Made in USA

Meet the HALO Wireless pH Meter.

Take laboratory grade pH and temperature measurements using your smart phone or tablet.



Wireless pH Meters


Made in USA

The HALO wireless pH meter makes pH testing simple. And here's the proof.


"Unbelievably simple."

Easy and convenient to use. Calibration, reading, and maintenance are unbelievably simple. Record keeping is done automatically for you.


Randy - Wine Maker

"Very cool!"

The HALO is perfect. If you are a hobbyist or a small commercial cheese maker this is the most cost effective tool and if you are a pro it is still perfect......very cool!


John - Cheese Maker

"It’s freaking wireless?!?"

The marriage of Bluetooth® HALO pH meter with connected electronics really changes the face of what the future of handheld environmental monitoring will look like.


Jake from Reef Builders

Since 2014, Halo provides small business owners and hobbyists a simple tool for high quality pH monitoring in the home or at work.


High performance testing made accessible.

Hanna HALO Bluetooth® pH meter is designed to help anyone get high quality pH and temperature results quickly and consistently.


Hanna Lab Application Screenshot

Download our app.

Get the latest Hanna Lab App for iOS and Android to start your measuring experience.

One Press Connect

Connect your sensor.

Each wireless sensor operates with one button and is easily recognized by our Hanna Lab App.

Hanna Lab App Calibration Screenshot

Calibrate HALO.

Calibrate up to five pH points. Your buffers are automatically recognized.

 

Measure with confidence.

Measure like a pro.

Your smart device is now a professional grade pH meter wherever and whenever you need it.

Trust in your results.

HALO's smart system tells you when your electrode needs cleaning or calibration.

Designed and built by the best.

Hanna Instruments is the world's biggest name in pH meters with millions sold.



Made in USA

Measure with confidence.

Measure like a pro.

Your smart device is now a professional grade pH meter wherever and whenever you need it.

Trust in your results.

HALO's smart system tells you when your electrode needs cleaning or calibration.

Designed and built by the best.

Hanna Instruments is the world's biggest name in pH meters with millions sold.



Made in USA

Customize your testing experience.

With several styles of pH electrodes to choose from, matching a HALO to your need is easy.

Food
Beer
Winemakers
Beverage
Drinking Water
Growing

 


Aquariums
Pool Testing
Lab
Biotech
Classrooms
General

 



Monitor changes over time.

Fluctuations in temperature and pH can have lasting effects on your work. Lapses in consistency can impact your quality.

Hanna Lab App on iPad

Recognizing when these patterns arise can help you understand what is happening, prompt you to take action, and help prevent future problems.


Try the Hanna Lab App in demo mode for free.

Download on Google Play
Download from the App Store

Pick the HALO that's right for you.

Food

Beer

Wine

Soil

General

General

General

Lab

Lab

Surface

 

Organize (and share) your results.

All of your results, all of the time.

Your Hanna pH Lab App collects all of your pH and temperature data just in case you missed something.

Highlight your most important results.

Push button logging highlights your data of interest and can be noted for future reference and comparison.

Sort and share your data.

Group your data by time or notation. Email it for storage or share it with friends or colleagues.

Try the Hanna Lab App for free on iOS and Android.

Hanna Lab App iPhone Screenshot

To help you get started.

Calibration

HALO Calibration Solutions

Maintenance

HALO Maintenance Solutions

Accessories

HALO Accessories

 

Your pH Electrode

Pick the Right Tip Shape for Your Testing Needs.


Spherical

A spherical tip is the most common shape for a pH electrode due to it's large surface area.
BEST FOR: aqueous samples and general purpose.

Conical

A cone shape makes testing of semi-solids easy.
BEST FOR: direct penetration into semi-solids, emulsions, soil, and slurries.

Flat Tip

The flat tip allows for the direct surface measurement of a sample.
BEST FOR: flat surfaces, skin, leather, and paper.

Finding the right electrode for specific testing can be tough. In order to help, Hanna Instruments has put together a guide, Getting To Know Your pH Electrode.

 

Do You Have the Right pH Buffers?

An essential step in achieving accurate pH readings is proper calibration. How do you know when calibration is necessary or why your readings are off?

When performing a pH calibration it is important that the correct buffers are used. For example, if you want to measure something with a pH of 9 and you only calibrate your pH meter to a single point with pH 7 buffer you may not get the most accurate measurement. This is because pH measurements are most accurate when multiple calibration points are used to bracket (are above and below) the expected pH value.


We manufacture a wide range of buffer solutions for a variety of uses. Visit our blog to find out What Type of pH Calibration Solution Should You Use?

Perform an Electrode Quality Test

Monitoring Slope and Offset

Important calibration values to monitor include slope and offset. These numbers provide information on the probe’s overall condition.

Hanna Tip: We recommend that you don't let the offset exceed ±30 mV and the slope percentage stays between 85-105%.

If you have a bad offset, this could mean that you either have a clogged junction or that the probe requires cleaning. If this occurs, try soaking the probe in a cleaning solution and repeat the process of checking offset.

If your slope is bad, this could mean you have used expired or contaminated buffers. If this is the case, ensure that fresh buffers are used.

To learn more about how to calculate your slope and offset, Watch This Video.


We manufacture a wide range of buffer solutions for a variety of uses. Visit our blog to find out WhatType of pH Calibration Solution Should You Use?

pH Testing Tips


Clean Regularly.

Depending on the nature of your samples, your pH electrode can become dirty or clogged resulting in slow and faulty readings. Regular cleaning will prolong the life of your electrode.

Calibrate Often.

To ensure your pH measurements are accurate, be sure to calibrate after extended storage, cleaning, and before use. Use fresh buffers that bracket your expected value.

Condition Always.

A dry electrode results in slow, incorrect measurements. Always use proper storage solution and be sure to fully cover the junction.


To learn more, download our pH Best Practices Guide here!