$100 - $150

WD-35419-31 PH 550 Replacement pH Electrode with Temperature Sensor by Oakton

Replace electrodes when they break, no longer hold calibration, cannot be rehydrated, or are not compatible with your sample.

90433-85 Thermowell, 304 Stainless Steel, 24" Length, 1/2" 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.

Part Number: CP-BC1

WS-220 22" Aluminum Shutter by Schaefer

Schaefer aluminum shutters allow airflow in a single direction and are used as building air inlets to feed Schaefer exhaust fans, or on exhaust fans to prevent air entry when the fan is not operating.

Aluminum shutters are built tough for long life in the most demanding environments, all at an affordable price.

Features and Benefits:

• Constructed of heavy-duty brushed aluminum for corrosion resistance and greater durability
• Interlocking louvers for maximum weather protection and lightweight for high efficiency and easy installation
• Tie bar to eliminate shutter flapping
• Shutter motor kits available for automated opening/closing

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

WD-35634-08 EcoTestr™ TDS1 Waterproof Pocket Tester by Oakton

Designed to be durable and easy to use

These economical, simple-to-use pocket testers quickly measure conductivity, TDS, or salinity levels accurately while simultaneously displaying the temperature. A large dual-line display makes viewing measurements easy and features indicators for measurement stability, calibration, and battery life.

Additional features include a long-lasting, durable electrode with polymer reference electrolyte, auto recognition of calibration standards, and self-diagnostics. The IP67-rated housing features an easy-to-grip design and floats if accidentally dropped in water when sensor cap is on. The testers, powered by four AAA batteries, can operate up to 400 hours continuously. The unit will auto power-off after 8 minutes of nonuse to conserve power.

• View measurements clearly on large LCD
• Rugged IP67-rated housing is waterproof, dustproof, and floats in water
• Leakproof cap with fill line functions as a sample/calibration and hydrating cup
• Secure attach a lanyard to prevent losing or dropping in the field
• Auto shutoff extends battery life

223101 Chlorine Test Kit (Hach): Free & Total Chlorine Color Disc Test Kit by AquaPhoenix

0 - 0.68 mg/L Cl2
0 - 3.4 mg/L Cl2 Cl2
0 - 3.4 mg/L Cl2
1 - 10 mg/L Cl2

This color disc test kit uses powder DPD reagent that reacts with chlorine more quickly than tablet-form DPD, giving more accurate results. Powder DPD also has a considerable advantage over orthotolidine, a hazardous substance sometimes used as a free and total chlorine test reagent. Hach Chlorine Test Kits are manufactured by Hach to ensure compliance with stringent quality control standards. Kit contains 100 tests (50 free, 50 total).

Quickly and accurately measures free and total chlorine levels in the field or in the lab
Simple and fast color disc method

Includes two reagents, color disc, color comparator box, tube, instruction sheet, and carrying case.

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

SXL-D Optical Liquid Sensor Set, DRAINING by Agrowtek

Electronic optical "liquid level control system" includes two liquid sensors for high and low "fill" or "drain" control of fluids in tanks, reservoirs, etc. Only power and a valve or relay is required to complete the level control system; no external controller required. Easy to wire and setup. Includes one standard and one latching sensor. Compatible with 5-24Vdc valves and relays. Available with optional VX1 water valve kit or RX1 outlet kit for direct operation of 120Vac pumps, valves and other equipment.

MKLP30SO-5B Low Pressure Mist Kit with Shutoff for 30" Fans; 5 x 0.012" Nozzles, Black by Schaefer

Instantly convert your circulation fan into a misting fan with Schaefer low pressure misting kits. The misting kits can reduce air temperature up to 30°F with wind from a fan and standard water pressure from an ordinary garden hose. The kits are easy to use with push releasable connections and optional ball valve water shut offs. Available for fans of all sizes, Schaefer mist kits provide an easy economical solution for your evaporative cooling needs.

Features and Benefits:

• 1/4" black polyethylene tubing for durability and resistance to cracking
• Brass and stainless steel nozzles to atomize the water
• Push releasable nozzles and fittings for easy cleaning
• Optional ball valve for quick and easy shutoff of water supply
• Standard garden hose connection for water pressure, no additional power required
• Minimal water consumption, as low as 1.7 gallons per hour, for energy efficiency and low environmental impact.
• 8 foot water supply line connection from ring to base
• Two year warranty
• Made in the USA

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