Range

 EC

 0.00 to 29.99 µS/cm

 30.0 to 299.9 µS/cm

 300 to 2999 µS/cm

 3.00 to 29.99 mS/cm

 30.0 to 200.0 mS/cm

 up to 500.0 mS/cm (actual EC)*

 TDS

 0.00 to 14.99 mg/L (ppm)

 15.0 to 149.9 mg/L (ppm)

 150 to 1499 mg/L (ppm)

 1.50 to 14.99 g/L (ppt)

 15.0 to 100.0 g/L (ppt)

 up to 400.0 g/L (ppt) (actual TDS)* with 0.80 conversion factor

 NaCl

 0.0 to 400.0%

 Temperature

 –20.0 to 120.0 ºC (-4.0 to 248.0ºF)

 Resolution 

 EC

 0.01 µS/cm; 0.1 µS/cm; 1 µS/cm; 0.01 mS/cm; 0.1 mS/cm

 TDS

 0.01 mg/L (ppm); 0.1 mg/L (ppm); 1 mg/L (ppm); 0.01 g/L (ppt); 0.1 g/L (ppt)

 NaCl

 0.10%

 Temperature

 0.1°C

 Accuracy @  25°C

 EC

 ±1 % of reading (±0.05 µS/cm or 1 digit)

 TDS

 ±1 % of reading (±0.03 mg/L (ppm) or 1 digit, whichever greater)

 NaCl

 ±1% of reading

 Temperature

 ±0.2°C (excluding probe error)

 Calibration

 EC

 automatic, one point with six memorized values (84, 1413, 5000, 12880, 80000, 111800 µS/cm)

 NaCl

 one point with HI 7037 calibration solution

 Temperature

 two point, at 0 and 50°C (32 and 122°F)

 Temperature Compensation

 automatic or manual from –20.0 to 120.0 ºC (-4.0 to 248.0ºF)　

(can be  disabled for measuring conductivity)

 Temperature Coefficient

selectable from 0.00 to 6.00%/ºC (EC and TDS only); default value is 1.90%/ºC

 TDS Factor

selectable from 0.40 to 0.80 (default value is 0.50)

 Probe

HI 76309 four ring conductivity probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)

 Power Supply

 1.5V AAA batteries (3) /approximately 200 hours of continuous use without  backlight

(50 hours with backlight on); auto-off after 5, 10, 20 and 60 minutes (can be disabled)

 Environment

 0 to 50°C (32 to 122°F); RH max 95%

 Dimensions

 185 x 72 x 36 mm (7.3 x 2.8 x 1.4”)

 Weight

 300 g (10.6 oz)

 Electrodes

 HI 76309

 4-Ring Potentiometric Probe with 1 m (3.3') cable

 Solutions

 HI 7030L

 12880 µS/cm EC Solution, 500 mL Bottle

 HI 7031L

 1413 µS/cm EC Solution, 500 mL Bottle

 HI 7033L

 84 µS/cm EC Solution, 500 mL Bottle

 HI 7039L

 5000 µS/cm EC Solution, 500 mL Bottle

 HI 7034L

 80000 µS/cm EC Solution, 500 mL Bottle

 HI 7035L

 111800 µS/cm EC Solution, 500 mL Bottle

 HI 7037L

 Calibration Solution for % Readings (100% NaCl)

 HI 7061L

 General Purpose Cleaning Solution

 1 x 500 mL bottle

 Accessories

 HI 92000

 Windows® Compatible Software

 HI 920014

 Mini USB Cable for PC Connection

 Probes

HI 76309/1.5

 4-Ring Potentiometric Probe with 1.5 m (4.9') cable

HI 76309/10

 4-Ring Potentiometric Probe with 10 m (32.8') cable

HI 76309/20

 4-Ring Potentiometric Probe with 20 m (65.6') cable

HI 76309/50

 4-Ring Potentiometric Probe with 50 m (164') cable