Specifications
Specifications are subject to change without notice.
Specification Details
Dimensions (W x D x H) 37 x 30 x 170 mm (1.45 x 1.18 x 6.69 in.)
Enclosure rating IP67
Weight 135 g (0.297 lb) with batteries
Power requirements (internal) AAA alkaline batteries (4x)
Battery life 450 hours (200 hours with backlight on)
Operating temperature 0 to 50 °C (32 to 122 °F)
Storage temperature –20 to 60 °C (–4 to 140 °F)
Operating humidity 80% (non-condensing)
Altitude 2000 m (6562 ft)
Instrument range pH: 0.00 to 14.00
Conductivity: auto-ranging (0.0 to 199.9 µS/cm, 200 to 1999 µS/cm, 2.00 to 19.99 mS/cm)
TDS: auto-ranging (0.0 to 99.9 ppm, 100 to 999 ppm, 1.00 to 10.00 ppt)
Salinity: auto-ranging (0.00 to 99.9 ppm, 100 to 999 ppm, 1.0 to 10.00 ppt, 0.00 to 1.00%)
Temperature: 0.0 to 50°C (32.0 to 122.0 °F)
Resolution pH: 0.01 pH
Conductivity: 0.1 µS/cm from 0.0 to 199.9 µS/cm, 1 µS/cm from 200 to 1999 µS/cm,
0.01 mS/cm from 2.00 to 20.00 mS/cm)
TDS: 0.1 ppm from 0.0 to 99.9 ppm, 1 ppm from 100 to 999 ppm, 0.01 ppt from 1.00 to
10.00 ppt
Salinity: 0.1 ppm from 0.0 to 99.9 ppm, 1 ppm from 100 to 999 ppm, 0.01 ppt from 1.0 to
10.00 ppt, 0.01% from 0.0 to 1.00%
Temperature: 0.1°C (0.1 °F)
Accuracy
1
,
2
pH: ±0.02 pH
Conductivity: ±1%
TDS: ±1%
Salinity: ±1%
Temperature: ±0.5 °C (±0.9 °F)
Calibration points pH: 3 points (auto), 2 points (custom)
Conductivity: 3 points (auto), 1 point (custom)
Note: Temperature calibration is not available.
Auto-recognition calibration
standards
pH: USA: 4.01, 7.00, 10.01 pH, NIST: 4.01, 6.86, 9.18 pH
Conductivity: 147 µS/cm, 1413 µS/cm and 12.88 mS/cm
Certifications CE mark, FCC, Industry Canada, KC Mark, RCM, China RoHS
Warranty 1 year for tester and 6 months for replacement sensor for manufacturing faults only.
Damage from use is not covered.
1
For pH, the accuracy is based on a 3-point calibration and calibration standards at the same temperature as
the samples measured. Also valid for 5.5 to 8.5 pH based on a 1-point calibration, 0.0 to 8.5 pH based on a 2-
point calibration with pH 7 and pH 4 standards, or 5.5 to 14 pH based on a 2-point calibration with pH 7 and
pH 10 standards.
2
For conductivity, TDS and salinity, the accuracy is based on a 2-point calibration and the conductivity range of
the calibration standards includes the conductivity value of the water sample.
2
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