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Portable
Waterproof TDS Testers
TDS Tester
High / Low Series
Item
Number: WD-35661-11 / WD-35661-21
1% Full Scale accuracy
Waterproof, dustproof
housing
Replaceable electrode
Push-button calibration
HOLD function
Auto shut-off
Full reading displayed
Automatic temperature
compensation (ATC)
TDS Tester low: Measure TDS in natural water. Verify reverse osmosis systems
and tap water quality. Check nutrient solution concentration for hydroponics.
TDS Tester high: For measuring TDS in salt water, waste water, cooling tower
water, and boiler condensate. Check nutrient solution concentration in hydroponics
applications.
Specification
TDS
Tester Low
TDS
Tester High
Item
No
WD-35661-11
WD-35661-21
Range
0-1990
ppm
0-10.00
ppt
Resolution
10
ppm
0.10
ppt
Calibration
One
point push-button calibration
Operating
Temperature
0
to 50°C / 32 to 122°F
Temperature
Compensation
Automatic
(ATC) 0 to 50°C / 32 to 122°F
Power
Four
1.5V alkaline batteries
Dimensions
5
7/8"L x1 5/8"W x7/8"H
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