$150 - $200

850081C/SG Pt Glass Low Conductivity Probe by AquaPhoenix

For use with the following:

Water Quality Meter - 850081
Water Quality Meter Kit - 850086

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

Part Number: 34L-334

Part Number: 34L-176-0.66

*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

Part Number: 103L-79-1000A

Part Number: 34L-399-S

PC60-Z Smart Pocket pH/Conductivity/TDS/Salinity/Resistivity Tester Kit by Apera

• The next-generation tester designed for seamless water test experience. Professional measurements for pH, conductivity (EC), ORP (ORP probe sold separately), TDS (ppm), salinity (ppt), resistivity and temperature now become easier than ever.
• Just connect the tester to your smartphone via Bluetooth in the ZenTest mobile App (Free download in iOS App Store/Google Play Store), the step-by-step smart guide will lead you to become a water test professional with just a few taps.
• Save and share your measurement and calibration data right on the palm of your hand via email. Data will never get lost thanks to the cloud-based data system.

94175 Reducer/Corrector f/6.3 by Celestron

This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer/Corrector is f/6.3 for C5, C6, C8, C9¼ and C11 telescopes and f/7 for the C14 telescope.

If offers wide fields of view with any Schmidt-Cassegrain telescope. Used for astrophotography, it reduces exposure time by a factor of 3.

Celestron doesn't offer a f/6.3 Schmidt-Cassegrain telescope, because the design is impractical, with a large central obstruction, and resulting loss in contrast. This, added to the inability to utilize longer focal ratios for certain objects, led Celestron to design the four-element, fully multicoated f/6.3 Reducer/Corrector. Results are amazing both visually and photographically.

MA887 Digital Refractometer for Seawater Measurements by Milwaukee

The MA887 is an optical instrument that employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates.

The digital refractometer eliminates the uncertainty associated with mechanical refractometers and is easily portable for ship, shore or home use.

The MA887 refractometer is an optical device that is simple and quick to use. Samples are measured after a simple user calibration with distilled or deionized water. Within seconds, the refractive index and temperature are measured and converted into one of three popular measurement units; Practical Salinity Units (PSU), Salinity in parts per thousand (ppt), or Specific Gravity (S.G. (20/20)).

All conversion algorithms are based upon respected scientific publications using the physical properties of seawater (not sodium chloride). The temperature (in °C or °F) is also displayed on the large dual level display along with helpful message codes.

Key features include:

• Dual-level LCD
• Automatic Temperature Compensation (ATC)
• Easy setup and storage
• Battery operation with Low Power indicator (BEPS)
• Automatically turns off after 3 minutes of non-use.

K4VTC1 KOPkit for PULSAtron Pumps Size 4 with VTC1 Wet End Code by Quantrol

When you need a part, you've got it! A KOPkit can help you cut downtime and put you back in business fast. Use KOPkits for preventative maintenance also, to ensure continuous high performance from your Pulsafeeder metering pump.

Save money too, by buying parts in KOPkits instead of ordering individual parts.

KOPkits are available for the CHEM-TECH Series Prime Performance, Series 100, Series 200 and Series XP & XPV; Mec-O-Matic Stingray Series and Dolphin Series; and all PULSAtron metering pumps.

Operating Benefits

• Reduce downtime.
• Save money by ordering a KOPkit instead of individual parts.
• Needed wetend parts for maintenance in one part number.

PULSAtron KOPkit includes Pump Head assembly with Suction and Discharge Valve Cartridges, Diaphragm, Head Screws, Washers and an exploded view assembly drawing.

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

Part Number: J197830VN

Part Number: 103L-309