Hanna Instruments DiST 1 Waterproof TDS Tester (0-2000 ppm) HI98301
The Hanna Instruments HI98301 DiST 1 is a low-range total dissolved solids tester than can measure up to 2000 ppm (mg/L). The DiST 1 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. The HI98301 DiST 1 has a 0.5 conversion factor in the measurement of TDS in a variety of applications including water conditioning, environmental monitoring, education and general laboratory use. 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

Slim, Ergonomic Design
- With rounded edges and a case that is only 17 mm (0.7”) thick, the HI98301 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.
Two-button Operation
- 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.
Graphite Sensor
- Reduces polarization effects and does not oxidize resulting in a reliable and accurate reading.
Automatic Calibration
- Automatic calibration at 1382 ppm (mg/L) with a single push of a button.
Stability Indicator
- A clock tag stability indicator will disappear to alert the user when the reading is stable.
Automatic Shut-off
- 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.
| Range | 2000 mg/L (ppm) | |
| Resolution | 1 mg/L (ppm) | |
| Accuracy | ±2% F.S. | |
| TDS Factor | 0.5 | |
| Calibration | Automatic, 1 point | |
| Temperature Compensation | automatic, 0 to 50°C (32 to 122°F) | |
| Battery Type / Life | CR2032 3V Li-ion approx. 250 hours of continuous use | |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% | |
| Dimensions | 160 x 40 x 17 mm (6.3 x 1.6 x 0.7") | |
| Weight | 75g |