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TDS Meter-EC Conductivity + CF + TDS 3 in 1 meter for Hydroponic

Last Updated
21 Sep 2021
Country Origin
United States
Minimum Order
1 unit
TDS Meter

Specification of TDS Meter-EC Conductivity + CF + TDS 3 in 1 meter for Hydroponic

EC Conductivity + CF + TDS 3 in 1 meter for Hydroponic


EC measurement range: 0.00 ~ 19.99 EC

CF measurement range: 0.0 ~199CF

TDS measurement range: 10 ~ 19990ppm

EC resolution: 0.01EC

CF resolution: 0.1CF

TDS resolution: 10ppm

Accuracy: ±2% F.S

Operating temperature: 0ºC ~ 50ºC (32ºF~122ºF)

Automatic temperature compensation (ATC): 0ºC ~ 50ºC (32ºF~122ºF)

Calibration: manual – screwdriver included

Dimensions: 18cm x 3.5 cm x 10.5cm

Weight: 86g (inc batteries)

Powered by: X4 1.5V (AG13) batteries (included)

Tough plastic body

Instructions, diagrams (including for calibration) included

Brand new and factory boxed in tough, padded storage case

One method of checking the strength of a nutrient solution is to measure how well it conducts electricity.

Although pure water is not a conductor, the flow of electricity increases proportionally as salts are added. So measuring electrical conductivity (EC) is a direct indication of the nutrient level in a solution.

A CF (Conductivity Factor) meter determines conductivity by measuring the amount of electricity that passes between two electrodes placed in the solution. CF meters designed for use with hydroponic systems usually have a scale of 0-100 CF units. Nutrient level is also often expressed in Parts Per Million (ppm), so it is helpful to know that 65 PPM is equivalent to one CF unit. (Just for the record, one CF unit is equal to 10 milliMhos, also called milliSiemen.)

Different crops have different nutrient needs, and so grow better at different CF values. Lettuce, for example, grows best between 6 and 12 CF units, while tomatoes are heavier feeders and are happiest at 22 to 28 CF units. Adding more nutrient (in the proper proportions, of course) will increase the CF level. To lower the CF reading of a solution, simply add more water. Plants generally grow best at levels of 7.5-20 CF, although readings of 20-30 CF are considered acceptable. Nutrient levels above 30 CF should be avoided, as there is the potential for soluble salt damage.

Cara kalibrasi EC Conductivity Meter:

1.Ambil larutan standard Sodium Chloride (Nacl) dan tuang dalam gelas plastik

2.Celupkan Conductivity Meter dalam cairan solution selama 3 menit

3.Adjust nilai pada unit menjadi 2.76mS/cm. Setelah selesai bersihkan elektroda dengan air aqua




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