The Hanna Instruments HI98303 DiST 3 is a low-range electrolytic conductivity (EC) tester than can measure up to 2000 µS/cm making it ideal to monitor a variety of water quality applications including drinking water, water conditioning, irrigation water, and environmental monitoring. The DiST 3 is a rugged and reliable pocket-sized tester for use in the lab or field. This modern looking meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. This tester keeps things simple with a two-button operation; one for ON/OFF, the other for calibration.
Large Multi-level LCD
Exposed Temperature Probe for Fast Response
Simple Two-Button Operation
The DiST 3 features a large multi-level LCD which displays both electrolytic conductivity (EC) and temperature readings simultaneously. The EC readings are displayed with a 1 µS/cm resolution and with an accuracy of ±2% full scale. The conductivity range of the HI98303 is from 0 to 2000 µS/cm. An exposed temperature sensor allows for rapid automatic temperature compensated conductivity measurements. Temperature can be set to display in ℃ or ℉. The LCD screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.
Conductivity readings are performed by an amperometric graphite electrode that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with amperometric testers that use two stainless steel pins.
Calibration is performed by pressing the dedicated calibration button. Once in calibration mode submerge the probe in 1413 µS/cm calibration standard. When the standard value is recognized and stability reached, the meter will automatically accept and store the calibration value.
Setup options include automatic shut-off timing and temperature unit displayed. Automatic shut-off options are to turn the meter off after 8 minutes, 60 minutes, or disabled. To enter the setup mode the user presses a button located in the battery compartment.
Multi-Level LCD The large LCD displays EC, temperature, calibration tag, battery level and instability indicator.
Exposed Temperature Probe An exposed temperature probe allows for an extremely fast and stable EC measurement.
Two-Button Operation Only two buttons for meter operation. One for on/off and one for calibration.
Slim, Ergonomic Design
With rounded edges and a case that is only 17 mm (0.7”) thick, the HI98303 is thin and fits comfortably in the hand or pocket.
Large Multi-level LCD
The LCD is 29 mm (1.125”) x 20 mm (0.81”) allowing the user to easily read both the pH and temperature simultaneously.
One for ON/OFF, the other for calibration.
Exposed Temperature Sensor
Exposed temperature sensor allows for quick Automatic Temperature Compensated measurements. Temperature can be displayed in either oC or oF.
Reduces polarization effects and does not oxidize resulting in a reliable and accurate reading.
Automatic calibration at 1413 µS/cm with a single push of a button.
A clock tag stability indicator will disappear to alert the user when the reading is stable.
User-selectable time until meter shuts off to conserve battery life. Options are 8 min, 60 min or disabled.
Low Battery Indicator
Low battery indicator that is displayed when less than 10% battery life is remaining.
Battery % Level at Startup
At start-up, all the LCD segments are displayed for 1 second, then the percent indication of the remaining battery life is displayed.
0 to 2000 µS/cm
automatic, one point at 1413 µS/cm
EC/TDS Temperature Compensation
automatic from 0.0 to 50.0°C (32.0 to 122.0°F)
Temperature Correction Coefficient
0.0 to 50.0°C (32.0 to 122.0°F)
8 minutes, 60 minutes, or disabled
CR2032 3V Li-Ion (1 pc.) / approximately 250 hours of continuous use
0 to 50°C (32 to 122°F); RH 100%
160 x 40 x 17 mm (6.3 x 1.6 x 0.7“)
68 g (2.4 oz.) without battery
HI98303 is supplied with protective cap, 1413 µS/cm calibration solution sachet (4), CR2032 battery, instrument quality certificate and instructional manual.