$150 - $200

*Please note we can only ship RKI products to customers within the United States

600-0061-000 Oxygen, 20.9% (Balance Nitrogen), 34L Steel Cylinder by RAE Systems

Standard single-gas and multi-gas mixtures for monitor calibration

• Sizes range from 11 liters to 103 liters
• Convenient multi-gas mixtures
• Choose between demand-flow and constant-flow regulators

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

AI104G GroStar GS4 pH/EC/500ppm/700ppm Combo Pen Tester Kit by Apera

GroStar® Premium Pen Testers are designed specifically for the horticultural market. GroStar's intelligent design reduces the guesswork so you can easily manage your crops success.

Features of GS4 Premium pH Pen:

• Measures pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1)
• Compatible with all GroStar replacement probes: pH, Soil pH, EC and PH/EC Combo
• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance
• Easy-to-use design and fast calibration adjustment
• Double junction replaceable probe, so you don't have to discard the entire pen when the probe reaches its end of life
• Large 3-color backlit screen gives you clear information
• Durable structure, IP67 waterproof rating
• Powered by AAA batteries with auto off function
• Automatic temperature compensation

Includes:

• 2-year warranty (instrument)
• 1-year warranty (probe)
• pH 7 & pH4 calibration solution (50ml bottle each)
• 2.77 EC calibration solution (50ml bottle)
• KCL storage solution (10ml bottle)
• Lanyard and user manual

Part Number: J1208.6VN

Measuring Range: -50 to +350°C

TT521PS Adhesive Vinyl Class 5.2 Organic Peroxides Placard (10.75" x 10.75") by GHS Safety

Placards are displayed on vehicles, tankers, and containers to identify the risk of products being transported. GHS Line of placards are manufactured to meet the UN specifications on the Transport of Dangerous Goods.

These placards are stocked in 3 materials. Paper Tag-board placards are a cost effective single use format. Rigid Plastic placards will withstand multiple uses even in adverse weather conditions.

Outdoor Grade Peel and Stick Vinyl placards offer a permanent marking solution and will withstand outdoor environments.

*Please note we can only ship RKI products to customers within the United States

600-0061-001 Oxygen, 19% (Balance Nitrogen), 34L Steel Cylinder by RAE Systems

Standard single-gas and multi-gas mixtures for monitor calibration

• Sizes range from 11 liters to 103 liters
• Convenient multi-gas mixtures
• Choose between demand-flow and constant-flow regulators

Part Number: F1079100PA

Old Part Number: Z105390
New Part Number: Z105390PN

WD-35419-42 Environmental Express 1500 All-in-One pH Electrode by Oakton

In addition, pH and conductivity probes both offer temperature measurement.

• pH probe measurement range from 0 to 14
• Conductivity probe measurement range from 0.1 mS/m to 10 S/m