$100 - $150

AI802G GS2-E Replacement EC Probe for GS2 EC/ppm Pen by Apera

Built with the Swiss spear glass membrane and anti-contamination PTFE junction, GS2-E spear pH probe is designed for high-accuracy direct soil pH measurement.

Also works well with other soft solid samples such as fruits, meats, cheese, etc. and general water solutions.

This probe is compatible with the following Apera tester models:

• GroStar GS1, GS2, GS4
• PH60, PH60F, PH60S, PC60
• PH60-Z, PH60F-Z, PH60S-Z, PC60-Z

AM1965-Q Ammonium Molybdate, 4% w/v, 1L by AquaPhoenix

• APHA for Phosphorus, 4500-E, F

Specifications

• Packaging Type: Poly
• Size: 1.00 L
• Concentration: 4% w/v

AI3101 LabSen 211 Glass-body pH Electrode for General Water Solutions (TRIS compatible) by Apera

Built with proprietary sensor technology and materials from Switzerland, Apera LabSen 211 pH Electrode is ideal for professional lab and field pH measurement of general water solutions.

LabSen S-type hemispherical glass membrane - low resistance and high firmness, rendering fully stabilized readings in 15 to 30 seconds, and is yet 10 times stronger than traditional glass membranes, highly resistant to general impact, eliminating the chance of accidental breakage.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

The electrode uses a standard BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to achieve temperature compensation.

• Proprietary sensor technology and premium materials from Switzerland
• Built with LabSen S-type hemispherical glass membrane, featuring low resistance (fast response) and high firmness
• No more air bubbles inside the glass membrane thanks to the Swiss blue gel electrolyte.
• Long-Life Reference System improves the stability of reference electrode and extends the service life of the electrode
• Compatible with TRIS buffers

LabSen 213 Glass Combination pH/Temp. Electrode for General Water Solutions (TRIS compatible) by Apera

Backed by proprietary Swiss sensor technology and materials, the Apera Instruments LabSen® 213 Glass 3-in-1 pH/Temp. Electrode is designed for general water solutions in scientific research and quality control. This electrode is compatible with TRIS buffer solutions.

LabSen® unique blue hemispherical glass membrane - faster response time, better repeatability, and built tough, highly resistant to general impact (totally differentiates from the traditional fragile glass bulb membrane); and can be tested in high-temperature samples (up to 225°F).

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of the reference electrode and extends the service life of the electrode.

The patented pH/Temperature combination structure - The temperature element is placed in an independent cavity under the pH glass membrane. With the built-in heat-conducting medium, the temperature sensing speed can be increased by 40%, hence the response time and stability of the pH electrode are greatly improved.

Compatible Apera Instruments' meters: PH700, SX823-B, MP511, PH910, PH950, PH850, PH8500, PH820. May NOT work with other brands' meters because the temperature unit might be incompatible.

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

• Proprietary pH sensor technology and materials from Switzerland
• Unique LabSen® blue hemispherical glass membrane - fast response rate and impact-resistant
• Patented pH/Temperature combination structure, increasing the temperature response time by 40% compared to a conventional isolated built-in thermistor
• Say goodbye to air bubbles inside the bulb thanks to the Swiss blue inner gel solution.
• Long-Life Reference System, improving the stability of the reference electrode and prolong the service life of the electrode

S653 S600 Series Cable, CPVC, Quick Disconnect by Sensorex

With threading for submersion mounting, the S653 Cable Assembly is the perfect complement to our S651CD Submersible Electrode series. This cable assembly is designed to submerge the electrode in tanks, flumes and sewer lines. The cost-effective CPVC construction is well suited for most water and wastewater applications. Pairing the S653 Cable Assembly with an S651CD series Electrodes allows for quick electrode changes, drastically reducing downtime due to maintenance.

• Use with one of our S651CD series Electrodes for quick and easy maintenance
• Threading design for fast and simple installation
• Durable CPVC design is suitable for most applications
• One year limited warranty

90494-04 Adjustable Angle Bimetal Thermometer, 3" Dial, 12" L/50-550F/10-290C by Digi-Sense

Accuracy is ±1% full-scale when stem is immersed 2" in liquids or 4" in gases (immerse models with a 2.5" stem length 2" in gases). Measured stem length from the top of the threads to the bottom tip of the stem. Stem dia is 0.25"; threaded connection is 1/2" NPT(M). All thermometers meet or exceed ASME B40.3 standards. Maximum environmental temperature for glass lens thermometers is 500°F (148°C).

• Greater temperature range
• Anti-parallax dial for accurate readings
• Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments
• Rugged 304 stainless steel construction with a clear glass lens
• Recalibrate using the external reset screw

Part Number: 75-4260

SXL-F Optical Liquid Sensor Set, FILLING 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.

AM-CG20 20" Coupler, Galvanized by Schaefer

Metal circular ring connects multiple sections of duct. Available for duct diameters.

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

PS22 22" PVC Shutter by Schaefer

Schaefer PVC shutters are maintenance free, resistant to rust and corrosion and have an efficient, aerodynamic design. Louvers are curved for a tight seal when closed and corners are fused together for exceptional strength and durability. Optional integrated shutter motors available.

The 115 volt, 1/2 amp gear motor and arm assembly opens shutter when energized and closes shutter when de-energized. Nylon bearings will not corrode and never needs lubrication.