
Benchtop, precise, accurate measurements.
The built-in microprocessor enables advanced functions, such as automatic calibration, automatic temperature compensation, self-diagnosis, auto power-off, and low-battery indicator, and improves the response time and accuracy of your measurements.
The MAX Benchtop Conductivity/TDS/Salinity/Temperature meter feature a large LCD display that provides simultaneous Conductivity and temperature readings with a resolution of 0.1 µS and an accuracy of ± 2% Full scale. Conductivity probe with integrated temperature sensor. 5 points automatic calibration and extended range up to 150.0 mS.
Product features
Specifications:
Conductivity Range Resolution Accuracy
0.00 to 19.99 μS/cm 0.01μS/cm ± (2%FS + 1 digit)
20.0 to 199.9 μS/cm 0.1μS/cm
200 to 1999 μS/cm 1μS/cm
2.00 to 19.99 mS/cm 0.01mS/cm
Salinity Range
0 to 10ppt 0.01 ppt ± (2%FS + 1 digit)
TDS Range
0.00 to 9.99ppm 0.01ppm ± (2%FS + 1 digit)
10.0 to 99.9ppm 0.1ppm
100 to 999ppm 1ppm
1.00 to 10.00ppt 0.01ppt
Resistivity Range:
0.0 to 100.0 MΩ 0.1 MΩ ± (2%FS + 1 digit)
Constant K:
Configurable:
0.05 to 0.20
0.80 to 1.20
9.80 to 10.20
Recommendation for conductivity cell and measurement range
| K= 0.1 | 0.0 to 19.99μS/cm |
| K= 0.1 e K=1.0 | 20.0 to 199.9μS/cm |
| K=1.0 | 200 to 1999μS/cm |
| K=1.0 | 2.00 to 19.99mS/cm |
| K=10.0 | 20.0 to 199.9mS/cm |
TDS factor: Configurable: 0.30 to 1.00
Conductivity calibration: 1 point automatic – 5 standard buffers
Automatic Temperature compensation: 0 to 100 °C
Manual Temperature compensation: 0 to 100 °C
EC/TDS/Temp probe: AK1020 (included)
Temperature probe: 0 to 80°C
Backlight LCD: On/Off
Auto shut-off: 10 minutes
Reading (HOLD): Manual
Operating Temperature: 0 to 50 °C
Operating RH: 10 to 90 % RH(non-condensing)
Power supply: 220VAC/12VDC
Dimensions (W x L x H): 216 x 190 x 59 mm
Weight: 950g
Memory: 100 registers
AK135 MAX is supplied complete with:
Optional accessories:
AK4523: 1413 µS Calibration solution – 250 mL bottle
AK4524: 12.88 mS Calibration solution – 250 mL bottle

Portable, precise, accurate Measurements
The built-in microprocessor enables advanced functions, such as automatic calibration, automatic temperature compensation, self-diagnosis, auto power-off, and low-battery indicator, and improves the response time and accuracy of your measurements.
The MAX portable Conductivity/TDS/Salinity/Temperature meter is water resistant (IP65) and feature a large LCD display that provides simultaneous Conductivity and temperature readings with a resolution of 0.1 µS and an accuracy of ± 2% Full scale. Conductivity probe with integrated temperature sensor. 5 points automatic calibration and extended range up to 150.0 mS.
Product features
Specifications:
Conductivity Range Resolution Accuracy
0.0 to 199.9 μS/cm 0.1 μS/cm ± 2%FS
200 to 1999 μS/cm 1 μS/cm
2.00 to 19.99 mS/cm 0.01 mS/cm
20.0 to 150.0 mS/cm 0.1 mS/cm
Salinity Range
0.00 to 10.00ppt 0.01ppt ± (2%FS + 1 digit)
TDS Range
0 to 199.9 ppm 0.1 ppm ± 2%FS
200 to 1999 ppm 1 ppm
2.00 to 19.99 ppt 0.01 ppt
20.0 to 75.0 ppt 0.1 ppt
Temperature Range
-5.0 to 60.0°C 0.1°C ± 0.5°C
AK115 MAX is supplied complete with:

Robust, for accurate and fast measurements.
The AK52 Tester is a practical and versatile instrument suitable to monitor Conductivity and temperature parameters in a variety of applications: drinking water, Food and beverage industry, Horticulture, Hydroponics, Agriculture, Swimming Pools, lithographic processes, boiler and cooling tower, aquaculture, aquarium and brewing. The automatic calibration in 2 points and its easy-to-use interface, makes the AK52 a simple and accurate instrument with readings you can trust.
The built-in microprocessor enables advanced functions, such as automatic calibration, automatic temperature compensation, self-diagnosis, auto power-off, and low-battery indicator, and improves the response time and accuracy of your measurements.
Product features
Specifications:
Range:
Conductivity: 0 to 3999 µS/cm
Temperature: 0 to 50 ºC
Resolution:
Conductivity: 1 µS/cm
Temperature: 0.1ºC
Accuracy:
Conductivity: ± 2%FS
Temperature: ± 1°C
AK51 Tester is supplied complete with:

Robust, for accurate and fast measurements.
The AK51 Tester is a practical and versatile instrument suitable to monitor Conductivity and temperature in a variety of applications: wastewater treatment, Food and beverage industry, Horticulture, Hydroponics, Agriculture, Swimming Pools, lithographic processes, boiler and cooling tower, aquaculture, aquarium and brewing. The automatic calibration in 2 points and its easy-to-use interface, makes the AK51 a simple and accurate instrument with readings you can trust.
The built-in microprocessor enables advanced functions, such as automatic calibration, automatic temperature compensation, self-diagnosis, auto power-off, and low-battery indicator, and improves the response time and accuracy of your measurements.
Product features
Specifications:
Range:
Conductivity: 0.01 to 19.99 mS/cm
Temperature: 0 to 50 ºC
Resolution:
Conductivity: 0.01 mS/cm
Temperature: 0.1ºC
Accuracy:
Conductivity: ± 2%FS
Temperature: ± 1°C
AK51 Tester is supplied complete with:
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