$100 - $150

20" Aluminum Square Fan Blade, 3-Wing

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

52238 C70 Mini Mak Spotting Scope by Celestron

Celestron Mini Maks bring portability and versatility to a new level. The Maksutov optical design is recognized for being compact, easy to use, and applicable for both terrestrial (land) and astronomical use.

C70 Mini Mak is a small but powerful spotting scope that includes a tabletop tripod which has built-in slow motion controls, a built-in zoom eyepiece capable of 75x magnification, and soft carrying case.

• Maksutov-Cassegrain optical design with multi-coated optics
• 45° eyepiece - zooms up to 75x
• 1.25" eyepiece adapter allows usage of any 1.25" eyepiece
• Table top tripod
• Soft carrying case
• Limited Lifetime Warranty

IP1005-G Isopropanol (Isopropyl Alcohol), ACS, 4L by AquaPhoenix

• CAS No. 67-63-0
• CH3CH(OH)CH3 FW=60.10
• Isopropanol/UN 1219

Specifications

• Grade: ACS
• Packaging Type: Poly
• Size: 4.00 L

ORP60 Premium ORP Pocket Tester by Apera

The Apera Instruments ORP60 tester is simply the best pocket ORP tester you can get in the market for all kinds of regular ORP testing. The platinum ORP probe is replaceable and easy to install, so you don t have to buy a whole new meter once the probe retires.

Auto Calibration with buffer recognition and 0 to 50°C Auto Temperature Compensation (ATC), 1 mV/±0.2% F.S, 0.5°C accuracy with -1000 to 1000 mV measuring range, auto recognition and indication of stable values (optional auto hold function available) improves consistency, saving you the trouble of guessing when to manually hold measurement (with optional auto hold function). A Large clear 180° viewing angle screen with 3 backlit color (blue for measuring mode, green for calibration mode, red for warnings), it supports dual display of temp./pH value and stable readings (with a smiley face).

Comes with a complete kit of premixed standard solution (222 mV), soaking solutions (KCL), AAA batteries, and a lanyard all in a portable carrying case. Easy menu setting, customizing your tester according to your needs. IP67 water-proof and dust-proof, floats on water so you don't have to worry if dropped in water by accident. Longest 2000 hours' continuous operation (without backlit) powered by 4 AAA batteries (with low power warning and auto power off in 8 min if no operation).

Warranty: 2 years for the ORP meter, 6 months for the ORP probe.

• Easy-to-install Replaceable FLAT sensor, Triple-Junction structure prevents clogging, designed for Skin, Fabrics, Paper, and other flat surface pH testing, also works great for micro-volume and regular liquid pH measurement
• Easy Auto Calibration with auto buffer recognition (1 to 3 points); Auto Temperature Compensation (ATC)
• Replaceable ORP Platinum Probe, easy to install so that you don t have to buy a whole new meter once the probe retires
• Auto recognition of stable values (optional auto hold function available) improves consistency so you don't have to guess when to manually hold measurement
• LARGE CLEAR LCD with 3 backlit color (indicating 3 different modes), dual display of temp./ORP, and indications of completed calibrations and stable readings
• COMPLETE KIT with ready-to-use calibration solutions, a calibration bottle, storage solutions, AAA batteries, and a lanyard all in a premium portable carrying case

90493-02 Adjustable Angle Bimetal Thermometer, 3" Dial, 9" L/25-125F/-5-50C 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

GHS1277LP Workplace Laser Labels, Red Border, 1up (8.5" x 14") by GHS Safety

GHS laser printer templates make it easy for you to make your own label for the new HazCom GHS requirements. These paper laser printer ready sheets come with a pre-printed red boarder and pre-cut labels. Use any desktop publishing package to quickly make your own professional looking labels.

Made from laser printable paper with permanent peel and stick backing.

If color printing is not an option, use Hazard Class and Personal Protective Equipment labels (sold separately) to complete your labels.

1 label per sheet Sold in packages of 100 sheets

18525-39 Type K Thermocouple Probe Insulated Wire Probe with Sealed Tip with Mini-Connector, 20ft L 24 Awg by Digi-Sense

Do not subject type J exposed-junction probes to moisture as they will rust

• Each Probe is hermetically sealed and tested to 25psi
• Can be used for applications requiring an isolated junction.
• Response Time: 0.75 seconds or greater
• All insulated-wire probes include straight insulated cable with no handle and feature ANSI color-coded mini connectors: type J - black, type K - yellow, and type T - blue.
• Custom designs or changes to this product are available upon request

AI3109 LabSen 831 Glass-body pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid by Apera

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 831 HF pH Electrode is designed for professional pH measurement of solutions containing HF (Hydrofluoric) acid, and other strong acidic solutions.

LabSen HF glass membrane - designed for accurate measurement in strong acid samples, and is resistant to hydrofluoric corrosion, good for 1000 times of measurement (measurement time<1 minute, and HF concentration should be less than 0.1mol/L or 0.2% wt%)

Built tough - The hemispherical glass membrane is 10 times stronger than traditional glass membranes, and highly resistant to general impact, saving the electrode from accidental damage.

Silver Ion Trap Reference System - On top of the Long-Life reference system, a silver ion trap is added to further prevent junction clogs.

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.

• Proprietary pH sensor technology and premium materials from Switzerland
• LabSen HF glass membrane designed for accurate measurement in strong acid samples, and is resistant to hydrofluoric corrosion
• Silver Ion Trap Reference System
• LabSen's sturdy glass membrane is 10 times stronger than traditional glass membranes
• The blue gel electrolyte eliminates the chance of any air bubbles inside the sensor

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

MH-515-120 1500W / 120V Turbo Electric Heater by Master

Master's MH-515-120 Electric Fan Heater is an ideal way to heat localized indoor spaces because it doesn't require any ventilation. With its simple and sturdy design, it is a great heating solution for any area up to 165 sq. feet on 120V power.

Master's Electric Fan Heaters are effective for heating spaces such as garages, workshops, warehouses, etc.

• Thermostat control
• 1 Heat setting
• Over-heat shut-off system
• Durable stainless steel heating element
• Includes a 6 ft. cord