Apera Instruments AI204G GroStar pH / EC / 500ppm / 700ppm / ORP Combo Pen Tester Kit with ORP probe

Apera Instruments GroStar GS4-P pH/EC/ppm/ORP Combo Pen Tester Kit is a lab-grade multi-parameter meter kit designed specifically for growers to easily manage crop success, featuring a replaceable pH/EC plus an ORP probe, and a grower-friendly workflow along with other intelligent functions and features that help reduce the guesswork and give you the confidence in every measurement.

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.
• A replaceable double-junction platinum ORP probe is included in this kit for you to easily monitor the ORP level of nutrient solutions. Just switch on the ORP probe and the tester will automatically enter ORP measurement mode.
• 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.
• Double-junction pH probe for greater durability in complex nutrient solution testing.
• EC sensor made with titanium alloy ensures high accuracy and takes minimal maintenance.
• TruRead Measurement Mode for easy soil data logging from multiple locations.
• ORP probe can be installed to measure ORP, which tells the ability of nutrient solutions to break down waste and contaminant.

Kit Includes:

• GS4 pH EC Combo Pen Tester
• GS5-E ORP Probe
• pH calibration buffer solution 7.00 & 4.00 (50ml each)
• 3M KCL soaking solution (10ml),
• 2.77 EC calibration standard solution (50mL)
• user manual
• lanyard