$25 - $50

90260-03 General Purpose Liquid-In-Glass Thermometer; -20 to 110C, 76mm Immersion, Organic Liquid Fill by Digi-Sense

These thermometers are inexpensive and safe for use in laboratories, universities, food/beverage, environmental, wastewater, petrochemical, pharmaceutical and many other general-purpose applications. Choose from partial immersion or total immersion thermometers.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include a ring top and a statement of accuracy supplied by manufacturer.

• Nonmercury blue spirit liquid
• Statement of accuracy

Includes

Ring top and a statement of accuracy supplied by manufacturer.

90433-99 Thermowell, 316 Stainless Steel, 4" Length, 3/4" Connection by Digi-Sense

To match your probe to a thermowell, first measure the distance from the probe's tip to the top of the thread (typical thread length is 0.5" for 1/2" NPT fittings). Next, match this length to the probe depth of the thermowell ("A" dimension). Other thermowell sizes and materials are available - call our Application Specialists for more information.

• Limited-Space Thermowell when you need a shorter insertion depth.
• Standard Thermowell for general-purpose applications.
• Heavy-Duty Thermowell for higher fluid velocity ratings.

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

TT80V Class 8 TDG Label (Vinyl) by GHS Safety

Shipping Labels are essential for packages that contain dangerous goods. GHS labels are available in two materials. Paper for indoor applications and in vinyl for extended outdoor usage using a fade resistant ink. These labels meet the UN Recommendations on the Transport of Dangerous Goods.

Available in 500/roll formats.

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

AA2190-Q Acetic Acid 10% v/v, 1L by AquaPhoenix

• Acetic Acid Solution/UN2790

Specifications

• Packaging Type: Glass
• Size: 1.00 L
• Concentration: 10% v/v

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

CD611 Conductivity Tester with ATC and 1 point manual calibration by Milwaukee

The Milwaukee Conductivity Pen is designed for hydroponic and other growers to help you make sure that your plants are receiving the right amount of nutrient. Keep EC in your target range to help your achieve better results.

DESIGN FEATURES

• Measures conductivity and temperature with automatic temperature compensation
• Ideal range for hydroponics (0 to 20,000 μS/cm)
• Units in μS/cm easily convertable to ppm
• Factory calibrated with the ability to recalibrate if needed
• 350 hours continuous use (3 x 1.5V batteries included)

MAINTENANCE

EC electrodes can develop nutrient build up over time. To miminize build up, always rinse the probe in fresh tap water after every use.

CONVERTING EC TO TDS

The Milwaukee EC Pen, like all conductivity meters, provides a measure of electrically charged ions in a solution and is an absolute measure of conductivity.

EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and the 700 scale. However, true PPM can only be determined through chemical analysis.

Your mS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below.

2,000 μS/cm = 2.0 mS/cm = 1000 ppm on .50 factor scale

2,000 μS/cm = 2.0 mS/cm = 1400 ppm on the 442 scale or .70 factor scale