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Customer Support: (800) 842-6629

Gro’Chek On-line Waterproof EC Meter with LCD - HI983302N

The HI983302N has been engineered with a host of features to meet the needs of growers in hydroponic applications. Housings and cable connections have been sealed against vapor and humidity. The HI983302N is supplied with a probe specifically made for horticulture and hydroponics applications. This easy-to-clean probe compensates for temperature variations automatically and provides stable readings.

  • Automatic temperature compensation
  • Water-resistant housing
  • Large Liquid Crystal Display for an easy reading


Engineered to withstand the aggressive agricultural and hydroponic environments, the HI983302N is a simple way to measure EC. Hang the meter above the sample for continuous measurement.  The meter uses a 12V DC power supply for uninterrupted measurement. The splash-resistant meter housing has an IP54 rating and features a large integrated LCD screen for that can be easily read from a distance.

The meter is supplied with a HI7632 two-pole, amperometric EC probe for panel mounted mini controllers that measures in the high range (mS/cm and ppt). This probe uses a built-in temperature sensor for automatic aemperature compensation and has a ½” male NPT threaded connection for insertion mounting. The HI7632 probe provides a rapid response and high accuracy EC measurements.

Features at-a-glance:

Water resistant housing

  • The meter housing is rated IP54 meaning it has a high level of protection against dust particles and splashing water

One-point calibration

  • Manually calibrate with 1413 µS/cm EC solutions using a screwdriver

Automatic Temperature Compensation (ATC)

  • Samples automatically compensated for temperature variations

Additional information

Weight 0.59 kg
EC Accuracy

±2% f.s.

EC Calibration

Manual with one trimmer

EC Range

0.00 to 9.99 mS/cm

EC Resolution

0.01 mS/cm


SKU HI983302N-01
Name Gro’Chek On-line Waterproof EC Meter with LCD – HI983302N
EC Range 0.00 to 9.99 mS/cm
EC Resolution 0.01 mS/cm
EC Accuracy ±2% F.S.
EC Calibration Manual with one trimmer
EC/TDS Temperature Compensation Automatic 5 to 50°C (41 to 122°F)
EC/TDS Probe HI7632 EC probe (included)
Power Supply External 12 VDC (included)
Dimensions 86 x 94 x 33 mm (3.4 x 3.7 x 1.3”)
Weight 150 g (5.3 oz)

Ordering Info

HI983302N is supplied with HI7632 EC probe, 1413 µS/cm calibration solution (20 mL), calibration screwdriver, 12 VDC power adapter and instruction manual.


Gro’Chek On-line Waterproof EC Meter with LCD – HI983302N