Hanna DiST^™ waterproof tester 

• Dual Level Display.
• Battery Level Indicator.
• Replaceable Graphite Electrode.
• Rugged, Floating Waterproof Casing.
• Temperature in °C and °F.
• Automatic Temperature Compensation (ATC).
• Adjustable Temperature Coefficient Factor
The new waterproof (they even float!) DiST5 and DiST6 testers have a dual-level LCD that displays EC or TDS and °C or °F. At startup, DiST performs a self check then displays the remaining battery level to assure proper working condition. These testers also feature a stability indicator and hold feature to prompt the user when to take the reading & freeze the display for easy and accurate recording. These new EC / TDS / Temperature meters have a stainless steel temperature probe for faster and more precise temperature measurement. Calibration and temperature compensation is automatic, while the EC / TDS conversion factor and temperature coefficient factor (ß) are user adjustable for application specific measurements. These advanced EC / TDS / °C / °F meters feature graphite electrodes to provide the greatest possible accuracy as they cannot be contaminated by salt deposits in the solution and when the electrode finally is exhausted simply insert a new electrode cartridge!
Choose your DiST according to the proper EC / TDS ranges for your application:
• DiST5 (HI 98311); EC - 0 to 3999 µS/cm; TDS - 0 to 2000 ppm
• DiST6 (HI 98312); EC - 0.00 to 20.00 mS/cm; TDS - 0.00 to 10.00 ppt
DiST is supplied complete with EC/TDS Probe (HI 73311), 4 × 1.5V batteries and electrode replacement tool (HI 73128).
Specifications: DiST 5 (HI 98311) DiST6 (HI 98312)
Range EC 0 to 3999 µS/cm 0.00 to 20.00 mS/cm
TDS 0 to 2000 ppm 0.00 to 10.00 ppt
Temperature 0.0 to 60.0 °C or 32.0 to 140.0 °F
Resolution EC 1 µS/cm 0.01 mS/cm
TDS 1 ppm 0.01 ppt
Temperature 0.1 °C or 0.1 °F
Accuracy (@ 20°C/68°F) EC ±2% Full Scale
TDS ±2% Full Scale
Temperature ±0.5 °C or ±1 °F
Typical EMC Deviation EC ±2% Full Scale
TDS ±2% Full Scale
Temperature ±1 °C or ±2 °F
EC / TDS Calibration Automatic 1 point at 1413 µS/cm Automatic 1 point at 1288 mS/cm
EC / TDS Conversion Factor Adjustable from 0.45 to 1.00
Temperature Compensation BETA (ß) = adjustable from 0.0 to 2.4 per °C in increments of 0.1
Environment 0 to 50°C (32 to 122°F); R.H. 100%
Battery Type / Life 4 × 1.5V / 100 hours
Auto Shut-off After 8 minutes
Dimensions 163 × 40 × 26 mm (6.4 × 1.6 × 1.0")
Weight 85 g (3 oz.)

DiST is a trademark of Hanna Instruments.