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We've rounded up the best 5 pH meters of the year - each has brilliant features and extras which have made them stand out as some of the best selling pH meters of 2016.
Hanna Advanced Portable GPS Multi-parameter meter[/caption] Not strictly just a pH meter, the Hanna Advanced Portable GPS model can measure up to 15 parameters (sensor supplied can measure 6; pH, ORP, conductivity, turbidity, dissolved oxygen and temperature) ✓ water resistant meter and rugged encased probe designed for field work ✓ display up to 12 parameters simultaneously ✓ GPS tag readings for full field work records ✗ small screen and limited keypad mean advanced options like logging and graphs are difficult to navigate to
5. Best for field work - Hach HQ30D / HQ40D pH meters
[caption id="attachment_10811" align="alignright" width="222"] The Hach HQ40D multiparameter meter in use[/caption] With rugged probes and long cable probe (up to 30m) options available, the single channel HQ30D and two channel HQ40D models present a great option for field work. ✓ rugged options for field work ✓ long 5m cables available ✓ HQ40D allows testing 2 parameters at once out of pH, dissolved oxygen and conductivity ✓ Hach's Intellical probe system stores serial numbers and calibration history with the probe ✗ Unique connection type so you are restricted to Hach's probes4. Best for flexibility everyday - Mettler Toledo FiveGo F2 handheld pH meter
[caption id="attachment_10815" align="alignright" width="223"] FiveGo F2 pH meter[/caption] The portable FiveGo meters are great for carrying around site and choosing a probe to suit your samples. ✓ portable but accurate - field kits include a wrist strap and buffer sachets to make portable work easier ✓ standard BNC connection type means you can choose probes from other brands to suit your sample ✓ range of kits available - choose from the basic kit with an "all rounder" electrode, the food kit with a puncturing spear tip electrode or the field kit with additional carry case and sample bottles ✗ icon based system on screen and the keypad means it can be hard to navigate3. Best for entry level testing of mixed samples - Laqua Twin B-712 pH meter
[caption id="attachment_10817" align="alignright" width="221"] The Laqua Twin pH meter allows testing of solids and liquids in a pocket size meter[/caption] With a flat bed sensor that can cope with a wide variety of samples, the Laqua Twin meter has continued to be a popular choice for people testing food, soil and other difficult samples. ✓ the robust flat sensor allows testing of solids (including food, soil, gels etc) as well as difficult liquids (including those containing protein) - an unusual but welcomed feature in a pocket size meter ✓ sensor size means you can test with tiny amounts of sample - as little as 0.05ml ✓ temperature compensation built in to improve accuracy ✗ only 2 point calibration is possible2. Best for pH and more in the field - Hanna Advanced Portable GPS Multi-Parameter
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[caption id="attachment_10819" align="alignright" width="121"]Hanna Advanced Portable GPS Multi-parameter meter[/caption] Not strictly just a pH meter, the Hanna Advanced Portable GPS model can measure up to 15 parameters (sensor supplied can measure 6; pH, ORP, conductivity, turbidity, dissolved oxygen and temperature) ✓ water resistant meter and rugged encased probe designed for field work ✓ display up to 12 parameters simultaneously ✓ GPS tag readings for full field work records ✗ small screen and limited keypad mean advanced options like logging and graphs are difficult to navigate to