$150 - $200

90447-41 Standard RTD, Mini-Plug, 1/8" OD, 9" L, Adjustable Compression by Digi-Sense

Resistance Temperature Detectors, or RTDs, are used in many process and laboratory applications where accuracy and repeatability are of prime importance. RTD elements are available in many different materials and with different temperature coefficients. The most commonly used element is a wire-wound platinum element, conforming to the DIN standard and with a .00385 temperature coefficient.

Key Features

• All probes are low range
• 316 stainless steel sheath material
• Extension leadwire transition with relief spring (350,°F)
• 3-wire RTD, 100 Ω
• Accuracy ±0.1%
• -328 to 400°F (-200 to 204°C)
• .00385°C temperature coefficient
• Constructed using PTFE Insulated silver plated copper internal leads

0560 2549 03 549i Refrigeration Pressure Smart Probe 350 ft. Bluetooth range by Testo

The testo 549i Smart Probe is a hose-less, wire-less, pressure probe for measuring refrigerant charge in AC/Refrigeration systems. It is used for servicing, troubleshooting, and documenting the operation of residential or commercial AC/refrigeration systems. When two 549i are used in conjunction with two 115i pipe-clamp temperature probes it is easy to monitor superheat and sub-cooling in AC/refrigeration systems. Users can read the measurements using the testo Smart Probes App installed on their smart device. The testo 549i easily connects to standard Schrader valves without tools and without hoses, eliminating any refrigerant loss. The testo 549i works on smart devices with either Android or Apple operating systems at distances up to 350'.

The testo Smart Probes App is a powerful and easy-touse tool. It allows you to remotely read measurements from up to six (6) Smart Probes and easily document/report the results. Automatic calculations make it a snap! All measurement data is displayed as instrument readings, tables, or graphs. The measurements can be quickly saved as PDF or Excel files. The App creates custom reports which can be saved and/or shared by email. All your data can be stored and retrieved saving you hours of time consuming paperwork!

• Measures high-side or low-side refrigerant pressure (or both simultaneously with 2 probes) in AC/refrigeration systems
• Now includes 45° angled probe connection
• Bluetooth range of up to 350 feet
• No hoses required! Clean, simple, accurate.
• Low-loss refrigerant pressure testing!
• Use with 115i pipe-clamp temperature probes for automatic superheat / sub-cooling calculations
• Tough, accurate, and easy-to-use.
• For all HVAC/R technicians and contractors

AI3103 LabSen 241-6 Glass-body pH Electrode for Small Samples (>0.2mL) by Apera

Built with proprietary sensor technology and premium materials from Switzerland, LabSen 241-6 Glass-body Semi-Micro pH Electrode is designed for test tubes and small-volume samples (>0.2mL).

LabSen S-type semi-micro glass membrane - 100mm in length and 6mm in diameter, low membrane resistance (<350MΩ), making reliable small-volume (>0.2mL) pH measurement easier than ever, and can be tested in high-temperature samples (up to 212°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 system and extends the electrode's service life.

The electrode uses a 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 Instruments MP500) to enable ATC or manually input temperature to achieve temperature compensation.

• Proprietary pH sensor technology and premium materials from Switzerland
• Low-resistance LabSen semi-micro cylindrical glass membrane, suitable for test tubes and small samples (>0.2mL)
• Smallest test volume is 60µL with the use of the semi-micro container (sold separately)
• Long-Life Reference System, improving the stability of the reference and extends the electrode's service life
• No more air bubbles inside the glass membrane thanks to the Swiss blue gel electrolyte.

S200CD/10/BNC pH Electrode, double-junction, epoxy body, 12 mm dia, 150 mm L 10ft Cable by Sensorex

The S200CD/10/BNC is a light duty pH probe for continuous monitoring of surface water and ground water, including environmental and industrial source water monitoring. The durable Ultem® body permits use in the field, while conferring chemical compatibility. Double junction reference protection allows use in environments that contain reference fouling contaminants, including heavy metals. Fully integrated cable comes in a 10 foot (3 meter) standard length, with custom cables available by request.

• Durable and low maintenance: Ultem® body construction, reinforced meter connection, and sealed reference design
• Allows monitoring in variable chemical environments: Double junction reference protection prevents reference cell contamination
• Accurate measurements across full pH scale (0-14)
• Instantly ready for use: Shipped in storage bottle for long shelf life – guaranteed for one year
• Compatible with any meter accepting a BNC connector
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

18527-83 RTD Connector, 3 Pin, Female, 5/Pk by Digi-Sense

Choose between white three-blade ANSI miniconnectors or round 3-pin connectors (Oakton® and Digi-Sense® meters only). Available individually and in packs of five.

• Glass-filled nylon construction provides rigidity, strength, and surface hardness

CS150-B-1-BB-2-A-N CS150 Light Duty Online Conductivity Sensor, Graphite, 12mm, K=0.1, TC, 10FT, BNC by Sensorex

The CS150 and CS150TC conductivity probes are a cost effective solution for measuring conductivity in light industrial and laboratory applications.

Sensors feature measuring surfaces. The durable epoxy body construction provides a rugged and dependable sensor for portable and laboratory use. Suitable for use with most portable conductivity meters.

By adding a simple mounting gland fitting, customers may use these in process applications. Mount them in-line, in a pipe "T" fitting, or submerse them into a tank.

Features:

• Ideal for laboratory and light duty process applicationsAvailable with or without ATC (temperature sensor)
• Easy to submerge in a tank or mount inline in a pipe
• Cell constant choices of 0.1 or 1.0
• Compatible with most portable and benchtop meters

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

WD-98768-04 Replacement Probe for 19601-08 by Oakton

Replace or upgrade electrodes, probes, cells, and parts for Traceable meters.

Optimize performance of your conductivity and pH/ORP meters

• Get accurate, reliable measurements with these replacement probes and adapters
• Suitable for use with conductivity meter 19601-08

OP20UL01UN23 Omega Pack Kit with Si-20 (5gph) 230V by Sauermann

The compact, sleek design of the Omega Pack is the ideal choice for convenient under unit mounting. The onboard Si-20 provides you Sauermann's high performance pumping capacities, yet with ultra quiet operation.

• Modern, slim design for an attractive installation
• Left or right side mounting
• Versatility to remove the Si-20 allowing for in-unit mounting
• Ultra quiet operation

Kit content

• 1 Si-20 Piston Pump
• 1 Detection Unit - SI2958, 2' cable
• 1 Anti-Vibration Rubber Dampers (2)
• 1 Clear PVC Tubing, 1/4" i.d. fitted with a Drain Safe Device
• 1 Power Cable, 5' (2 power wires, 2 safety wires)
• 1 Shell (2-part: backplate & cover)
• 1 Screws & plugs for affixing backplate
• 1 90 Deg Rubber Elbow, 19/32" i.d. x L 6"
• 1 Vent Tube, 5/32" i.d. x L 2 15/16"
• 1 Split Connector, 1/2" - 10/16"
• 1 Double Wire Clamps (3)
• 1 Tie Wraps (3)