$150 - $200

93830-62 Type K Ungrounded Industrial Thermocouple Probe, 9" L, 3/4" Connection by Digi-Sense

Thermocouple Probes Assemblies are ideal for use in industrial applications, chemical processes, production lines, ovens, furnaces, and vessels. The probes conductor is made of 20 gauge wire encased by ceramic insulators along with a standard size aluminum protection head. Head features a gasketed cap to seal out dust and moisture and houses a ceramic terminal block with screw terminals. Head has a 3/4" NPT (F) opening on the side for easy connection to electrical conduit. 316 stainless steel thermowells are included in assemble and are ideal for applications where removing of the probe without draining the vessel is necessary.

PS24 24" 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.

Pneumatic Wheel Kit for VS2430FP

08082-03 TI.32 6 Bimetal Thermometer, Filled, Adjustable Angle, 3" Dia/6" L; 50-300F/10-150C 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 Acrylic lens thermometers is 200°F (93°C).

Key Features

• Dampened movement
• 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 Acrylic lens
• Recalibrate using the external reset screw
• For use in applications that do not exceeding 200°F

7802 Replacement Glass Dome for 2" Camera Head by Wohler

Additonal Information

• For the Wohler 2" pan & tilt Inspection Camera head
• Replacement 2 inch glass dome

94239 Polar Axis Finderscope For CGX & CGX-L by Celestron

The optional Polar Axis Finderscope for the CGX series provides an easy, straightforward way to polar align your mount. The Polar Finderscope includes a dovetail base bracket that attaches to the CGX. The finder bracket itself can be removed from the dovetail for storage. Designed specifically for CGX and CGX-L, the bracket angle is adjustable to accommodate the most accessible viewing angle for your setup.

With a quick view to Polaris, the reticle displays Ursa Major and Cassiopeia in relation to the North Celestial Pole, so you can be accurately aligned without the need to reference an app or specific date/time/location info.

• Custom made for CGX and CGX-L Mounts
• Adjustable bracket angle for best accessibility
• 6x magnification
• Simple reticle map easily locates the North Celestial Pole without the need to reference an app or location & time
• Scope tilt is adjustable to allow for accurate polar alignment

18771 PowerTank Lithium by Celestron

The new PowerTank Lithium keeps the charge going for the astronomer on the go. The Lithium Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries.

• Portable power pack for your computerized Celestron telescope using Lithium Iron Phosphate (LiFePO4) chemistry
• Smaller, lighter, safer, and easier to maintain than lithium-ion and sealed lead acid designs
• Up to 2000 charge cycles four times more than lithium-ion & 7 times more than sealed lead-acid designs.
• Un-recharged shelf life of up to 10 years 3 times better than lithium-ion and 10 times better than sealed lead-acid designs
• Evironmentally friendly Does not use toxic heavy metals

• The LiFePO4 has an un-recharged shelf life of 10 years compared to 3 years for the Lithium Ion and 6-9 months for a Sealed Lead-Acid battery.
• The battery performance of the PowerTank Lithium degrades at a much slower pace than other chemistries.
• The LiFePO4 can be charged and discharged 2000 times compared to only 500 for a Lithium Ion battery and 300 for sealed lead-acid designs.
• The batteries will last as long as the telescope you use it with!
• The LiFePO4 uses phosphates instead of environmentally hazardous elements like cobalt or lead commonly found in other rechargeable batteries.
• Can withstand higher temperatures than lithium-ion designs and will not be a fire danger if accidentally punctured.

This combined with it's rugged design make it the perfect outdoor power supply.

Keep your telescopes, smartphones, tablets, GPS systems, cameras and other USB-powered devices as active as you are with PowerTank Lithium the ideal outdoor portable-charging solution for your electronic gear.

*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

S222CD-LC pH Sensor, 12mm, Polymer, Low Cond, BNR by Sensorex

Our S222 series of pH sensors are flexible for light-duty in-line or submersion online pH monitoring and control applications. Replace this light duty pH sensor in seconds with the quick disconnect BNC design. For use with the S653 series cable assembly, which comes equipped with 1/2" NPT threads for easy submersion installation. For in-line use, install with a 3/4" mounting gland (Sensorex FC75P; sold separately). For complete kit, purchase S222CD Light-Duty Online Process pH Sensor Kit.

• Reliable performance in light-duty applications: Recessed bulb design ensures reliable performance
• Lightning fast sensor changes: Modular design allows replacement cartridges to be changed in seconds without tools
• Perfect for pressurized applications: Sealed, no maintenance reference design
• Low total cost of ownership: All mounting hardware is reuseable. Only replace the quick-change sensor cartridge
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

90447-53 RTD Probe 1/4" OD 13" L Re-Adjustable Mini-Jack 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

1qty Blade Aluminum 30" 3-Wing 5/8" Bore 9 Degree Pitch

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

AI3167 LabSen 861 Glass-body pH Electrode for High-temp. and Caustic Solutions by Apera

LabSen 861 pH electrode is designed for high-accuracy pH measurement of corrosive and high-temp. solutions such as electroplating solutions.

The special PHY membrane is highly resistant to chemical corrosions, maximizing the reliability and service life of the electrode in complex and high-temp. solution testing.

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 MP500) to enable ATC or manually input temperature to realize temperature compensation.

• PHY glass membrane made for high-temp. and caustic solutions
• The PTFE ring junction prevents junction clogs from complex chemicals.
• Blue gel inner solution - does not flow and will not generate air bubbles.
• Suitable for high-temperature solutions (up to 130°C)
• Lead-free glass body

LabSen 835 Glass-body pH/Temp. Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid by Apera

Crafted with proprietary sensor technologies and premium materials from Switzerland, LabSen 835 pH/temp. Electrode is designed for high-precision pH measurement of liquids containing strong acids or hydrofluoric acids.

• LabSen HF-type membrane is resistant to hydrofluoric corrosion and minimizes acidic error
• HF Measurement — LabSen 835 pH electrode is capable of measuring solution containing HF acid for up to 1000 times. (measurement time<1 min, and HF concentration should be less than 0.1mol/L or 2000 ppm)
• Open junction and polymer electrolyte for full contact with samples while eliminating junction clogs
• Silver Ion Trap reference system outperforms ordinary Ag/AgCl systems by maintaining reference potential stability over time with Ag+ free environment, which significantly extends the electrode's service life.
• Sturdy glass membrane, 10 times stronger than traditional glass membranes
• The built-in temperature sensor enables automatic temperature compensation.