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pH Meters

A pH meter is an instrument designed to measure the hydrogen-ion level in water based solutions. A pH meter indicates the acidity and alkalinity and is sometimes also referred to as a potentiometric pH meter.

A pH meter works by measuring the voltage between two electrodes. The results are displayed by converting this information into a pH value.

The term 'pH' refers to a unit of me...

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Testo 205 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60°C Max
Testo 205 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60°C MaxTesto 205 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60°C Max
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RS Stock No. 232-0511
Brand Testo
Manufacturers Part No. 0563 2052

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Testo
+14pH
0pH
-
-
0.01pH
±0.02pH
-
+60°C
-
0°C
-
±0.4 °C
-
-
-
-
Button Cell : 4x LR44
-
80h
-
205
-
-
-
-
-
-
-
Testo 206-pH2 Starter Set pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, 60 °C Max
Testo 206-pH2 Starter Set pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, 60 °C MaxTesto 206-pH2 Starter Set pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, 60 °C Max
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RS Stock No. 232-0515
Brand Testo
Manufacturers Part No. 0563 2066

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Testo
14pH
0pH
-
-
0.01pH
±0.02pH
-
60 °C
-
0°C
-
-
-
-
-
-
1x CR2032
0°C
80 h
62g
206-pH2 Starter Set
-
-
+60°C
197 x 33 x 20mm
197mm
33mm
20mm
Chauvin Arnoux CA 10001 pH Meter, 0.01pH Resolution, 14pH Max, +60 °C Max
Chauvin Arnoux CA 10001 pH Meter, 0.01pH Resolution, 14pH Max, +60 °C MaxChauvin Arnoux CA 10001 pH Meter, 0.01pH Resolution, 14pH Max, +60 °C Max
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RS Stock No. 195-0938
Brand Chauvin Arnoux
Manufacturers Part No. P01710015

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Chauvin Arnoux
14pH
0pH
-
-
0.01pH
-
-
+60 °C
-
0°C
-
-
-
-
-
-
CR232
0°C
>100 h
65g
CA 10001
-
-
+50°C
20 x 36 x 227mm
227mm
20mm
36mm
Chauvin Arnoux CA 10101 pH Meter, 0.01pH Resolution, 16pH Max, +120 °C Max
Chauvin Arnoux CA 10101 pH Meter, 0.01pH Resolution, 16pH Max, +120 °C MaxChauvin Arnoux CA 10101 pH Meter, 0.01pH Resolution, 16pH Max, +120 °C Max
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RS Stock No. 195-0936
Brand Chauvin Arnoux
Manufacturers Part No. P01710010

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Chauvin Arnoux
16pH
-2pH
-
-
0.01pH
-
-
+120 °C
-
-10°C
-
-
-
-
-
-
AA Alkaline
-10°C
300 h
600g
CA 10101
-
-
+120°C
54 x 127 x 211mm
211mm
54mm
127mm
Testo 205 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60°C Max
Testo 205 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60°C MaxTesto 205 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60°C Max
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RS Stock No. 232-0510
Brand Testo
Manufacturers Part No. 0563 2051

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Testo
+14pH
0pH
-
-
0.01pH
±0.02pH
-
+60°C
-
0°C
-
±0.4 °C
-
-
-
-
4 x Button Cell LR44
-
80 h
-
205
-
-
-
-
-
-
-
Testo 206-pH2 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, +60 °C Max
Testo 206-pH2 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, +60 °C MaxTesto 206-pH2 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, +60 °C Max
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RS Stock No. 232-0512
Brand Testo
Manufacturers Part No. 0563 2062

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Testo
14pH
0pH
-
-
0.01pH
±0.02pH
-
+60 °C
-
0°C
-
±0.4 °C
-
-
-
-
1 x CR2032
0°C
80 h (Auto Off 10 min)
115 g (with TopSafe) and 65 g (without TopSafe)
206-pH2
-
-
+60°C
197 x 33 x 20mm
20mm
197mm
33mm
Testo 206-pH3 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, 80 °C Max
Testo 206-pH3 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, 80 °C MaxTesto 206-pH3 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, 14pH Max, 80 °C Max
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RS Stock No. 232-0513
Brand Testo
Manufacturers Part No. 0563 2063

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Testo
14pH
0pH
-
-
0.01pH
±0.02pH
-
80 °C
-
0°C
-
±0.4 °C
-
-
-
-
1 x CR2032
0°C
80 h (Auto Off 10 min)
69g
206-pH3
-
-
+60°C
197 x 33 x 20mm
20mm
197mm
33mm
Hanna Instruments CHECKER1 pH Meter, ±0.2pH Accuracy, 0.01pH Resolution, +14pH Max
Hanna Instruments CHECKER1 pH Meter, ±0.2pH Accuracy, 0.01pH Resolution, +14pH MaxHanna Instruments CHECKER1 pH Meter, ±0.2pH Accuracy, 0.01pH Resolution, +14pH Max
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RS Stock No. 214-855
Brand Hanna Instruments
Manufacturers Part No. HI98103

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Hanna Instruments
+14pH
0pH
-
-
0.01pH
±0.2pH
-
-
-
-
-
-
-
-
-
-
CR2032
0°C
3000 h
50g
CHECKER1
-
-
+50°C
66 x 50 x 25mm
25mm
66mm
50mm
Hanna Instruments HI 98107 pH Meter, ±0.1pH Accuracy, 0.1pH Resolution, +14pH Max
Hanna Instruments HI 98107 pH Meter, ±0.1pH Accuracy, 0.1pH Resolution, +14pH MaxHanna Instruments HI 98107 pH Meter, ±0.1pH Accuracy, 0.1pH Resolution, +14pH Max
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RS Stock No. 218-970
Brand Hanna Instruments
Manufacturers Part No. HI-98107

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Hanna Instruments
+14pH
0pH
-
-
0.1pH
±0.1pH
-
-
-
-
-
-
-
-
-
-
Button Cell (1.5 V) x 4
0°C
700 h
95g
HI 98107
-
-
+50°C
175 x 41 x 23mm
23mm
175mm
41mm
Hanna Instruments HI 98127 pH Meter, ±0.1pH Accuracy, 0.1pH Resolution, +16pH Max, +60 °C Max
Hanna Instruments HI 98127 pH Meter, ±0.1pH Accuracy, 0.1pH Resolution, +16pH Max, +60 °C MaxHanna Instruments HI 98127 pH Meter, ±0.1pH Accuracy, 0.1pH Resolution, +16pH Max, +60 °C Max
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RS Stock No. 410-0902
Brand Hanna Instruments
Manufacturers Part No. HI98127

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Hanna Instruments
+16pH
-2pH
-
-
0.1pH
±0.1pH
-
+60 °C
-
-5°C
-
±0.5 °C
-
-
-
-
Button Cell (1.5 V) x 4
-5°C
300 h
100g
HI 98127
-
-
+50°C
163 x 40 x 26mm
26mm
163mm
40mm
Hanna Instruments HI 98128 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +16pH Max, +60 °C Max
Hanna Instruments HI 98128 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +16pH Max, +60 °C MaxHanna Instruments HI 98128 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +16pH Max, +60 °C Max
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RS Stock No. 410-0918
Brand Hanna Instruments
Manufacturers Part No. HI-98128

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Hanna Instruments
+16pH
-2pH
-
-
0.01pH
±0.05pH
-
+60 °C
-
-5°C
-
±0.5 °C
-
-
-
-
Button Cell (1.5 V) x 4
-5°C
300 h
100g
HI 98128
-
-
+50°C
163 x 40 x 26mm
26mm
163mm
40mm
Hanna Instruments HI 98129 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
Hanna Instruments HI 98129 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C MaxHanna Instruments HI 98129 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
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RS Stock No. 434-2358
Brand Hanna Instruments
Manufacturers Part No. HI98129

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Hanna Instruments
+14pH
0pH
-
-
0.01pH
±0.05pH
-
+60 °C
-
0°C
-
±0.5 °C
3999µS/cm
0µS/cm
1µS/cm
2000ppm
Button Cell (1.5 V) x 4
0°C
100 h
100g
HI 98129
0ppm
1ppm
+50°C
163 x 40 x 26mm
26mm
163mm
40mm
Hanna Instruments HI 98130 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
Hanna Instruments HI 98130 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C MaxHanna Instruments HI 98130 pH Meter, ±0.05pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
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RS Stock No. 434-2364
Brand Hanna Instruments
Manufacturers Part No. HI98130

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Hanna Instruments
+14pH
0pH
-
-
0.01pH
±0.05pH
-
+60 °C
-
0°C
-
±0.5 °C
20mS/cm
0mS/cm
0.01mS/cm
10ppt
Button Cell (1.5 V) x 4
0°C
100 h
100g
HI 98130
0ppt
0.01ppt
+50°C
163 x 40 x 26mm
26mm
163mm
40mm
Testo 206 pH1 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
Testo 206 pH1 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C MaxTesto 206 pH1 pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
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RS Stock No. 479-8492
Brand Testo
Manufacturers Part No. 0563 2061

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Testo
+14pH
0pH
-
-
0.01pH
±0.02pH
-
+60 °C
-
0°C
-
±0.4 °C
-
-
-
-
CR2032
0°C
80 h
69g
206 pH1
-
-
+60°C
197 x 33 x 20mm
20mm
197mm
33mm
Hanna Instruments HI 98201 pH Meter
Hanna Instruments HI 98201 pH MeterHanna Instruments HI 98201 pH Meter
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RS Stock No. 288-8177
Brand Hanna Instruments
Manufacturers Part No. HI-98201

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Hanna Instruments
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Button Cell (1.5 V) x 4
0°C
700 h
95g
HI 98201
-
-
+50°C
175 x 41 x 23mm
23mm
175mm
41mm
Hanna Instruments HI 991300 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
Hanna Instruments HI 991300 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C MaxHanna Instruments HI 991300 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
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RS Stock No. 410-1400
Brand Hanna Instruments
Manufacturers Part No. HI-991300N

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Hanna Instruments
+14pH
0pH
-
-
0.01pH
±0.01pH
-
+60 °C
-
0°C
-
±0.5 °C
3999µS/cm
0µS/cm
1µS/cm
2000ppm
AAA
0°C
500 h
210g
HI 991300
0ppm
1ppm
+50°C
150 x 80 x 36mm
36mm
150mm
80mm
Hanna Instruments Conductivity Meter
Hanna Instruments Conductivity MeterHanna Instruments Conductivity Meter
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RS Stock No. 454-6960
Brand Hanna Instruments
Manufacturers Part No. HI 3811

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Hanna Instruments
-
-
Alkalinity
110
-
-
5ml
-
Bromophenol Blue Indicator, Calibrated Syringe with Tip, Calibrated Vessels, Phenolpthtalein Indicator (10 ml)
-
300mg/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Testo 206 pH1 Starter Set pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
Testo 206 pH1 Starter Set pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C MaxTesto 206 pH1 Starter Set pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
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RS Stock No. 512-0373
Brand Testo
Manufacturers Part No. 0563 2065

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Testo
+14pH
0pH
-
-
0.01pH
±0.02pH
-
+60 °C
-
0°C
-
±0.4 °C
-
-
-
-
CR2032
0°C
80 h
69g
206 pH1 Starter Set
-
-
+60°C
197 x 33 x 20mm
20mm
197mm
33mm
Hanna Instruments HI 991001N pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +16pH Max, +105 °C Max
Hanna Instruments HI 991001N pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +16pH Max, +105 °C MaxHanna Instruments HI 991001N pH Meter, ±0.02pH Accuracy, 0.01pH Resolution, +16pH Max, +105 °C Max
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RS Stock No. 726-2696
Brand Hanna Instruments
Manufacturers Part No. HI-991001

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Hanna Instruments
+16pH
-2pH
-
-
0.01pH
±0.02pH
-
+105 °C
-
-5°C
-
±0.5 °C
-
-
-
-
AAA
0°C
1500 h
245g
HI 991001N
-
-
+50°C
150 x 80 x 38mm
38mm
150mm
80mm
Hanna Instruments HI 991301 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
Hanna Instruments HI 991301 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C MaxHanna Instruments HI 991301 pH Meter, ±0.01pH Accuracy, 0.01pH Resolution, +14pH Max, +60 °C Max
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RS Stock No. 410-0930
Brand Hanna Instruments
Manufacturers Part No. HI-991301N

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Hanna Instruments
+14pH
0pH
-
-
0.01pH
±0.01pH
-
+60 °C
-
0°C
-
±0.5 °C
20mS/cm
0mS/cm
0.01mS/cm
10ppt
AAA
0°C
500 h
210g
HI 991301
0ppt
0.01ppt
+50°C
150 x 80 x 36mm
36mm
150mm
80mm