This 'all in one' kit comes complete with instructions, brush, cleaning fluid and calibration solution.

The best selling hydroponics EC/CF/PPM Meter in the world.

Growth Technology - 4,7 & Conductivity Standard Buffer.

HM DIGITAL EC METER -

A great quality new EC pen for a budget price!!

• Measures EC

• easy to read display

• includes carry case with belt clip

• highly efficient and accurate

• hold function with auto off

• built in digital thermometer

The Hydrofarm Light Intensity Meter is a pocket-sized, portable, light sensitive instrument capable of reading illumination up to 5000 footcandles (lumens per square foot).

The much loved original hanna design disappeared from distributors in Australia but now has thankfully been copied and improved.

HM DIGITAL REPLACEMENT ELECTRODE FOR THE HM DIGITAL PH METER

HM digital waterproof PH Tester , World class unit!
Replaceable electrode!!!

Ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture and more.
FEATURES

•     Measures pH and Temperature
•     Auto-ranging three point calibration with digital fine tuning
•     Includes storage solution in a sponge embedded in a clear cap
•     Waterproof housing (IP-67 rating)
•     Simultaneous temperature display
•     Measurement Range: 0-14 pH
•     Digital automatic calibration (one point), with digital fine tuning
•     Automatic Temperature Compensation (ATC)
•     Auto-off function, data-hold function and low-battery indicator
•     Display: large and easy-to-read LCD screen includes simultaneous temperature reading
•     Replaceable Sensor (model SP-P2)
•     Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
•     Includes a cap, batteries, lanyard, and pH 7.0 buffer

Simple and easy to use. Measuring range pH 4 to pH 8. There's enough solution to perform around 800 tests. Great backup for a meter.