ReviewsConductivity Calibration Kit

Extech DO700 Portable Dissolved Oxygen Meter

Measures dissolved oxygen concentration/saturation, pH, mV, conductivity, TDS, salinity, resistivity and temperature.
Automatic salinity compensation and manual barometric pressure compensation for DO measurements.
One button pH calibration (4, 7, and 10pH).
Choice of 3 point pH calibration for better accuracy.

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.
Comes in lightweight HDPE plastic bottles.
Laboratory quality NIST-traceable solutions.
Any brand TDS meter can be calibrated to any brand of calibration solution.
Bottles have a convenient wide mouth, allowing a user to simply insert the meter into a stable bottle.

24/7 test, monitor control (doser) for your pH up and down in water to maximize your grow and ensure plants get a balanced feed (nutrients) with lab....
This hydroponics digital tester has ATC that provides consistent reading regardless of any fluctuations in temperature.
Automated dosing with intuitive on-time/off-time for single-direction control.
Combine with conductivity (TDS) pen and other meters for full garden....
KIT INCLUDES: Calibration solution, replaceable pump, dosing tube, pH and temperature probes, international power supply, probe care kit sold....
Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers.

Test, measure and control (doser) pH and nutrients (tds) in solution to make precise up and down adjustments with lab quality probes for use in hydroponic system and grows with reservoirs.
multi-part nutrient dosing with Peripods.
EASY two point calibration for pH sensor, and auto temperature compensation, with backlit LCD display and calibration reminders.
Data logging with Bluelab Connect software (Connect stick sold separately).
24/7 meter for your nutrient and ph level to maximize your grow and ensure plants get the balanced feed they need.
high and low alarm when outside parameters.
tester parameters can be viewed on mobile phone.
Other features: flexible mounting options, replaceable probes, high RF tolerance, units for temperature and conductivity.
KIT INCLUDES Pro Controller, pH/EC/temperature sensor (Peripod pumps sold separately).
Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment.
2 Year Limited Warranty with proof of purchase on the controller (6 month warranty for pH probe).

AZ86031 Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by AZ Instrument, a well experienced manufacturer for Environmental Measuring Instrument..
Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH, Cond. (Conductivity), Salinity, TDS and D.O. (Dissolved Oxygen) in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..
Large LCD with multiple parameters display simultaneously..
pH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..

★ Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH,....
★ Conductivity, Salinity, TDS and D.O. Dissolved Oxygen in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
★ Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by well experienced manufacturer for Environmental Measuring....
★ Large LCD with multiple parameters display simultaneously: PH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..
★ Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..

【Multifunction PH Meters Suit】 with TDS PH EC temperature accuracy, faster for aquariums, pools, spas,etc..
【To calibrate the pH Tester】 Calibration does not require a screwdriver. The pH meter with ATC can automatically calibrate. To maximize convenience, simply press the Calibration key.
【High accuracy】The numbers of the pH meter range from 0.00-14.00 (PH), while the numbers of the digital EC and TDS meters range from 0 to 19990 ppm. PH Resolution is 0.01pH, Accuracy ± 0.05pH.TDS: 0 ~ 9990ppm, Conductivity: 0 ~ 9990us / cm, Accuracy: ± 2%.
【TDS have lock & auto-shut off function】 Conductivity meter has the accuracy of 0.1 ℃. Dump the item about 4 seconds in the liquid to get accurate values. In order to record the number, you can also Press the HOLD keyboard.
【LCD Display】The LCD clearly displays the data and the LCD backlight turns off automatically. Small and easy to carry. 365 days for a worry-free return service.