GroStar™ GS3 conductivity pocket meter


Plus 19% MwSt. DE
SKU: 28APE190351 / AI11030 Categories: , , , Tags: , , ,

The GroStar GS3 pocket meter is specially designed for measuring conductivity for hydroponics. Its rugged design makes the meter ideal for use in your garden. Whether professional measurements or values for the hobby gardener, its high-precision components and ease of use will help you quickly find your way around and increase the efficiency of your plant growth.

  • Premium electrode technologies and materials ensure high accuracy and durability with minimal maintenance
  • Titanium alloy sensor designed for high accuracy EC measurement
  • Easy-to-use design and fast calibration adjustment.
  • Intuitive operation, completing calibration within 15 seconds. Switch between EC, 500ppm and 700ppm with One-Tap.
  • Large 3-color backlight screen gives you clear information: white for measurement, green for calibration, red for error messages.
  • IP67 waterproof protection class
  • Replaceable probe
  • Powered by AAA batteries with auto-off function
  • Automatic temperature compensation

The GroStar GS3 Premium pocket meter has a 2-year manufacturer’s warranty (1 year on the electrode).

Technical Specifications

conductivity Measuring range 0 to 10.0 EC,

0 to 7000ppm (700ppm),

0 to 5000ppm (500ppm),

Resolution 0.1EC, 10ppm (700ppm), 10ppm (500ppm),
Accuracy ±0.1EC

±30ppm (500ppm)

±40ppm (700ppm)

calibration 1 point (2.77EC)
Unit EC/500ppm/700ppm, °F, °C
Temperature Measuring range 0 to 50°C (32 to 122°F)
Resolution 0.1°F/0.1°C
Accuracy ±1°C/±1°F
Compensation Automatically
more Backlight Backlight White (measurement);

Green (Calibration);

Red (error)

Power supply 4 × AAA batteries
IP rating IP67 (waterproof and floatable)
Dimensions 40×40×178 mm (with box 275×135×45 mm)
Weight 133 g (with box 330g)

Scope of delivery

A complete set contains:

  • GS3 Premium EC Pen Tester
  • 2.77 EC Standard Calibration Solution (50ml bottle)
  • Lanyard
  • manual


German GS3 DE
English GS3 EN
Italian GS3 IT