$25 - $50

*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

CD601 Conductivity Tester with ATC and 1 point manual calibration by Milwaukee

The Milwaukee CD601 digital electrical conductivity (EC) Pen is designed for aquariums, aquaculture, pools, water conditioning and many other applications. The CD601 helps you make sure that your water has the right amount of nutrient to help keep fish tanks healthy or helps you keep your filters up-to-date and clean for water filtration. Keep EC in your target range to help your achieve better results.

DESIGN FEATURES

• Measures microSiemens (μS/cm) direct and with automatic temperature compensation.
• Ideal range for aquariums (0 to 1990 μS/cm).
• Units in μS/cm are easily convertable to (ppm).
• Factory calibrated with the ability to recalibrate if needed.
• Automatic Temperature Compensation (ATC).
• 350 hours continuous use (4 x 1.5V batteries included).
• Simple one point calibration.

MAINTENANCE

EC electrodes can develop nutrient build up over time. To miminize build up, always rinse the probe in fresh tap or DI 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

0590 0017 Carrying Case testo 770 by Testo

You can securely store your measuring instrument and accessories in the robust transport bag with a hard outer shell. The two internal mesh compartments ensure the stored items are properly held in place.

• Outside: impact-resistant transport bag with zip fastener
• Inside: two mesh compartments
• Dimensions: 270 x 150 x 75 mm

Includes:

Transport bag (without measuring instrument and accessories).

08006-05 Galileo Thermometer; 64 to 88°F (18 to 30°C), 17 in. by Digi-Sense

Colorful glass thermometer is based on Galileo's theory developed over 400 years ago: in liquid, a body of fixed mass becomes less buoyant as the liquid temperature rises, and more buoyant as the temperature decreases - due to changes in liquid density. As temperature changes, the multi-colored balls rise and fall within the liquid-filled thermostatic tube. Lowest sphere in the top group within the instrument indicates ambient temperature.

• Hand-crafted thermometers
• Non-mercury liquid
• Seven floating spheres provide both Fahrenheit and Celsius readings
• Seventeen inches tall

18526-77 Type K Replacement GP Probe, 8" L, with Mini-Connector, .125 Dia. Ungrounded Junction by Digi-Sense

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C).

• Ideal for switching out probes when working with multiple applications.
• Response Time: 1.75-3 seconds or greater
• Each probe comes with a color coded ANSI mini connector: type J-black, type K-yellow, type T-blue, and type E-purple.
• Custom designs or changes to this product are available upon request.

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

CH9200-P Chlorine Standard Solution as Cl, 100 mg/L (ppm), 500mL by AquaPhoenix

Specifications

• Packaging Type: Poly
• Size: 500 mL

*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

90225-35 Traceable® Four-Channel Alarm Timer with Calibration by Digi-Sense

This timer allows you to count up to or down from 100 hours with 1-second resolution. This timer features a 3/4" high display and multiple channels that can be used simultaneously.

Each channel has a distinctive alarm that sounds for 1 minute, pressing any button will turn off the alarm. Timer memory recalls previous time set. Features time-of-day in 12- or 24-hour formats. Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• Memory returns display to previously programmed countdown time with touch of a button
• Extra-loud alarms sound for 1 minute
• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
• Traceable® certificate provided

Includes

Magnetic clip, stand, and one 1.5 V button cell battery.