Apera Instruments AI104G GroStar Series GS4 pH/EC/500ppm/700ppm Combo 5-in-1 Pen Tester Kit with Replaceable Double-Junction pH/EC Probe for Hydroponics Water Quality Testing, Gen II

The GroStar GS4 Premium combination meter was specially developed for measuring pH/EC/ temperature . Its robust design makes the measuring device ideal for use in your garden. Whether professional measurements or values ​​for hobby gardeners, thanks to its high-precision components and easy handling, you can quickly find your way around and increase the efficiency of your plant growth.

Apera GroStar Series GS4 5-in-1 Combo Pen (Gen II) is a premium tester designed specifically for growers to perform professional measurements of pH, EC, 500ppm, 700ppm, and temperature. GroStar's intelligent and grower-friendly design reduces the guesswork so you can easily manage the success of your crops.

Features of the GS4 Premium combination meter:

• pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1)
• Compatible with all GroStar replacement electrodes: pH, pH soil measurement, EC and PH/EC combo
• Premium electrode technologies and materials ensure high accuracy and durability with minimal maintenance
• Easy to use design and quick calibration setting
• Replaceable electrode, so you don't have to replace the entire meter if the electrode stops working
• Large 3-color backlit screen gives you clear information
• Durable structure, IP67 waterproof classification
• Powered by AAA batteries with auto-off function
• Automatic temperature compensation

Main Features:

• The pH/EC combo probe is built with a double-junction pH sensor and titanium conductivity sensor, ensuring quick and reliable readings in the long run.
• Easy to use design and quick 2-point automatic calibration with electrode condition display.
• 3-Color backlit LCD screen gives you clear readings in different modes even in dark environment.
• TruRead measurement mode available for taking measurements in multiple locations and automatically displaying the average, minimum, and maximum values of all the readings.
• The probe is replaceable, so you don't have to discard the entire pen when the probe reaches its end of life.
• ORP measurement available with the installation of GS5-E ORP probe (sold separately)

What's in the kit?

• pH 7, pH 4, 2.77 EC calibration solution (50ml bottle each)
• 3M KCL storage solution (10ml bottle)
• Lanyard
• User manual