Test conductivity, TDS, salinity, and temperature.


  • Auto ranging meter
  • High accuracy multi-range conductivity tester cell
  • Waterproof conductivity tester
  • 1 or 2 point calibration
  • Saves up to 50 readings
  • Automatic temperature compensation

Conductivity Testers Product Description

The EcoSense EC30A pen-style conductivity testers provide the ultimate feature set over similar competitive models. The conductivity testers feature an easy-to-use graphic interface with an easy to read display and on screen instructions. The conductivity testers offer simple one-hand operation, memory, and low cost of ownership over the life of the product. The EC30A conductivity tester gives you the ability to select your units of measure for conductivity, TDS, and temperature measurements. You also have the ability to set the conductivity tester’s conductivity or TDS range to what you want or allow the instrument to auto-range as it makes it’s measurement. The easy, user-replaceable electrode ensures the conductivity tester is always ready for use. Featuring advanced microprocessor technology, the EcoSense conductivity testers offer one or two point calibration and automatic temperature compensation (ATC). The last calibration data is stored by the conductivity tester in a GLP record for later review. The EC30A pen-style conductivity testers are IP67 rated for wet environments. The handheld conductivity tester can save up to 50 readings even if the power is lost. The conductivity testers also have data hold to lock the reading on the display, auto shut-off, and low battery indicator features. The EC30A conductivity testers are ideal for aquaculture/aquariums, surface water, agriculture/hydroponics, and wastewater applications. This line of conductivity testers comes with a one year instrument and electrode warranty.

Conductivity Testers Specifications

Conductivity Range: 0.0 µS to 19.90 mS, manual or auto ranging
Conductivity Accuracy: ±1% FS
Conductivity Resolution: 5µS/cm (0 to 1990 µS/cm), 0.05 mS/cm (2.00 to 19.90 mS/cm)
Temperature Range: 32.0° to 212°F (0.0° to 99.5°C)
Temperature Accuracy: ±1°F (±0.5°C)
Temperature Resolution: 1°F (0.5°C)
TDS Range: Calculated from conductivity measurement
TDS Constant: 0.50
Conductivity Temperature Compensation: AUTO 32.0 to 140°F (0.0 to 60.0°C)
Conductivity Temperature Coefficient: 1.06%/°F (1.91%/°C)
Conductivity Reference Temperature: 77°F (25°C)
Temperature Sensor: Thermistor, 10 k at 77°F (25°C)
Display: 98×64 graphic LCD
Battery: Four LR44 alkaline (included with conductivity tester)
Battery Life: > 200 hours (low battery indicator)
Memory: Non-volatile; 50 sets; erase all data function
Operating Temperature Range: 32.0 to 122°F (0.0 to 50.0°C)
IP Rating: IP67
Dimensions: 0.9×7.4×1.8 inch (23x188x46mm)
Weight: 3.7oz (105g) with batteries

Conductivity Testers Options

EC30A Conductivity Tester (PN# 606EC30)
Includes meter and conductivity cell, batteries, and instruction manual.


606114 Conductivity Tester electrode replacement kit (PN# 606114)
Includes conductivity tester electrode, electrode collar, 2 o-rings, and sensor cap.

605118 Replacement battery for EC30A Conductivity Tester (PN# 605118)

605129 Case for EC30A Conductivity Tester (PN# 605129)


065270 1,000 µS/cm Conductivity Tester calibration solution, 1 quart (0.95 L) (PN# 065270)

065272 10,000 µS/cm Conductivity Tester calibration solution, 1 quart (0.95 L) (PN# 065272)

065274 100,000 µS/cm Conductivity Tester calibration solution, 1 quart (0.95 L) (PN# 065274)


EC300ACC Field Conductivity Meter Kit
Includes field conductivity meter, cable with attached conductivity/temperature probe, and hard sided case.

EC500 Pocket pH/Conductivity Tester
Includes electrode, protective sensor cap, sample cup with cap, four 1.5V SR44W batteries, and a 48 inch (1.2m) neckstrap.

EC510 Pocket pH/Conductivity Tester Kit
Includes an EC500 portable conductivity meter with sensor, 84uS, 1413uS, 12880uS calibration standards, pH buffer pouches (1 each of 4, 7, 10pH plus rinse solution), weighted base, protective sensor cap, 3 sample cups, four 1.5V SR44W batteries, carrying case, and a 48 inch (1.2m) neckstrap

2CA102 Cond 3110 Set Handheld Conductivity Meter Set
Includes meter, tetraCon 325-3, case & accessories.

Lab 960 Benchtop Conductivity Meter

WQ-Cond Conductivity Sensor
4-20mA output.  Includes 25 ft of cable.

WQ Water Quality Sensors