$200 - $300

*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

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

LabSen 851-3 Glass-body pH Electrode for Highly Viscous Solutions by Apera

Backed by proprietary Swiss sensor technology and materials, the LabSen 851-3 Glass Pre-Pressurized Combination pH Electrode is designed for pH measurement for highly viscous solutions such as cosmetics, paint, resin, glue, and etc.

Pre-pressurized reference system - a pressure is pre-filled inside the LabSen 851-3 electrode so that the electrolyte can continue to flow through the junction. Even if a high viscous solution is tested, the blockage of the junction can also be avoided

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors, such as Apera Instruments MP511, SX811, PH700, PH800, PC800, PH820 and PC820. The temperature sensor is not built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to realize temperature compensation.

The electrode is backed up with a 6-month warranty by Apera Instruments

• Proprietary pH sensor technology and materials from Switzerland
• Pre-pressurized reference system: pressure is pre-filled inside the electrode so that the electrolyte can continue to flow through the junction. Even if a high viscous solution is tested, the blockage of the junction can also be avoided
• Standard BNC Connector
• 6-Month Warranty fulfilled by Apera Instruments

*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: 4903-600

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

CI-1300 Ceiling Air Intake by Schaefer

• Draws fresh air from above an interior ceiling
• Mounts flush with ceiling and extends 16" into attic
• Durable polyethylene housing with insulated damper doors
• Normally closed damper doors open wider with higher airflow
• Fits between 16" or 24" ceiling joists

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

WD-35660-64 DO200 Replacement DO Tip by Oakton

For your convenience, cables, electrodes, and replacement parts are available for your Oakton meters.

• Suitable for use with Oakton 200 series meters and meter kits
• Replacement DO tip for DO electrodes 35660-60 and 35600-62. DO electrode sold separately.

1-Phase/2-Speed Motor, 1/2 Hp, 115V, 60 Hz, Oscillating, 1075/750 rpm

BR250 Borescope, 9mm Camera, 110V by AquaPhoenix

Boroscopes are the ideal tool for inspecting the interior condition of your boiler tubes. Once the cable is inserted and pushed to the length of the boiler tubes, the conidtion of the tubes will be recorded as the cable is drawn back out.