GroStar Pens Replacement Probes

GS1-E Replacement pH Probe for GS1 pH Pen

AI802G GS2-E Replacement EC Probe for GS2 EC/ppm Pen by Apera

Built with the Swiss spear glass membrane and anti-contamination PTFE junction, GS2-E spear pH probe is designed for high-accuracy direct soil pH measurement.

Also works well with other soft solid samples such as fruits, meats, cheese, etc. and general water solutions.

This probe is compatible with the following Apera tester models:

• GroStar GS1, GS2, GS4
• PH60, PH60F, PH60S, PC60
• PH60-Z, PH60F-Z, PH60S-Z, PC60-Z

GS3-E Replacement Soil pH Probe for GS3 Soil pH Pen

GS4-E Replacement pH/EC Combo Probe for GS4 pH/EC/ppm Combo Pen

GS5-E Replacement ORP Electrode for PC60-Z, PH60-Z, PH60S-Z, PH60F-Z (double-junction)

301-G Replacement ORP Electrode for 5041 Compact ORP Pen Tester