Click for larger image and other views

How can we improve our images or Product Specifications?

Other Documentation

Hanna Instruments HI 993301 Gro'Chek EC/TDS/Temperature Monitor, Low Range EC and TDS Measurement

Be the first to review this item


Specifications for this item
Number of Items
Measurement Type
pH , Temperature
Part Number
HI 993301
Brand Name
Hanna Instruments
Style Name

This item is no longer available

This item ships for FREE with 2-Day Shipping on orders over $50. (Details)

Want it delivered on Tue, Apr 21? Order in-stock items in the next 2 days 1 hr 21 mins and choose One-Day Shipping at checkout.

  • Share

This item has already been added to

Update Quantity Cancel

Select a List Create New List

You can add a description later

Key Features

  • Single-point calibration for obtaining results across a wide conductivity range
  • Automatic temperature compensation (ATC) to eliminate the need for additional calculations
  • Large LCD screen for readability
  • Designed for agricultural applications but can be used for others
  • 12 Vdc adapter for plugging into a vehicle for power

Package Details

Shipping Weight: 1.75 pounds
Package Size: 7.5 x 7 x 5 inches

Product Description

The Hanna Instruments HI 99301 portable meter is a waterproof, multi-parameter electro-conductivity, TDS, and temperature meter designed for agricultural applications.

The meter features a large LCD screen for readability, and automatic temperature compensation to eliminate the need for additional calculations. The temperature range is factory calibrated, while electro-conductivity (EC) and total dissolved solids (TDS) calibration is automatic at one point (1413 uS/cm).

The HI 99301 can measure EC in the range of 0 to 3999 uS/cm (+ or - 2% F.S.) with resolution 1 uS/cm. TDS range is 0 to 2000 ppm (+ or - 2% F.S.) with resolution 1 ppm. Temperature range is 0.0 to 60.0 degrees C (32 to 140 degrees F) (+ or - 0.5 degrees C [+ or – 1 degrees F]) with resolution 0.1 degrees C (0.1 degrees F). Dimensions are 160 by 105 by 31 mm (6.3 by 4.1 by 1.2") with weight 190 g (6.7 oz.).

Conductivity meters measure the electro-conductivity of a solution. They are commonly used in hydroponics, aquaculture, and research to measure the amount of salts or other compounds present in water.

Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents, and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including a pH electrode with a built in temperature sensor, an electronic pocket-sized pH tester, and a replaceable electrode pH pocket tester. To ensure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.

What’s in the Box?

  • HI 7630 probe
  • 1413 uS/cm calibration solution (20 mL)
  • 12 Vdc adapter
  • Instructions

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-10pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2015, Inc. and its affiliates.