$150 - $200

71332 Nature DX 8x42 Binocular by Celestron

Celestron's Nature DX 8x42 binoculars are the perfect companion for your next outdoor adventure. A great first step into the world of serious sport optics, the views through Nature DX rival those of more expensive binoculars, at a price to fit your budget.

With phase-coated BaK-4 prisms and fully multi-coated optics, Nature DX reveals image detail you won't find with other entry-level binoculars. And when you're off the trail, enjoy superb views of concerts, sporting events, and more.

• Designed with the outdoor enthusiast in mind, waterproof and fully rubber armored.
• Phase coated BaK-4 prisms for increased contrast and resolution.
• Fully multi-coated optics provide brighter images by increasing light transmission through the entire optical path.
• Close focus of 6.5 feet for viewing nearby subjects.
• Sturdy, twist-up eyecups with multiple stops. Eyeglass friendly with 17.5 mm of eye relief.

Sophisticated optics

Nature DX's high quality BaK-4 prisms are phase coated to increase contrast and resolution. Phase coated prisms, combined with fully multi-coated lenses, provide maximum light transmission through the entire optical path, for brighter images, even in low light conditions.

With 8x magnification and 42 mm objective lenses, Nature DX 8x42 strikes the perfect balance between performance and ease of use. Acquire and follow your subject quickly in the wide field of view. Or, observe nearby subjects like plants and insects with a close focus of just 6.5 feet.

Binoculars that fit your lifestyle

A durable rubber armored, polycarbonate housing protects your Nature DX binoculars from damage without weighing you down. Twist-up eyecups with multiple stops ensure proper positioning of the eyes, even for eyeglass wearers.

Waterproof, fogproof, and nitrogen purged, these binoculars can withstand the elements. They're easy to pack, even for long excursions, and fit comfortably in a glove box or oversized pocket.

Bird watching made easy

Birders will love Nature DX for its bright, sharp views of distinguishing features and markings. You'll get more bird identifications and more enjoyment from each birding outing. The 8x42 model is a favorite among beginning and intermediate birders, since birds are easier to locate and follow in its wide field of view. Take your passion for birding to the next level with Nature DX!

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

94460-98 Traceable® High-Accuracy Fridge/Freezer Thermometer with Calibration; 1 SS Probe by Digi-Sense

Easily and accurately monitor temperature in most scientific, industrial, or general-purpose applications. Built-in alarms alert continuously until reset. Unit displays the exact time and date when thermometer alarms are triggered. Program the alarm in 0.1° increments. Thermometers have one-button field calibration and date/time stamp. Meters that accept two probes are ideal for monitoring two unique areas that are near each other. Probe comes with a microcable that permits a door to close on it.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

Stainless steel probe is ideal for measuring temperatures of air, liquids, and semisolids; sensor stem measures 6.25"L x 1/8" dia (15.9 x 0.3 cm).

• Get accurate, reliable measurements with included NIST-traceable calibration
• Resolution of 0.01° and accuracy of ±0.6°F (±0.3°C)
• Visual and audible alarms signal continuously until reset
• Durable stainless steel probe withstand both low and high temperatures

Includes

Stainless steel probe with 5-ft (1.5-m) cable, magnetic strips, Velcro® strips, bench stand, batteries, and NIST-traceable calibration certificate with data.

CS150TC-K=0.1 Light-Duty Contacting Conductivity / TDS Sensor with Automatic Temperature Compensation (ATC), Graphite, 12mm, TC, K=0.1 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

Part Number: 34L-398

600-0061-001 Oxygen, 19% (Balance Nitrogen), 34L Steel Cylinder by RAE Systems

Standard single-gas and multi-gas mixtures for monitor calibration

• Sizes range from 11 liters to 103 liters
• Convenient multi-gas mixtures
• Choose between demand-flow and constant-flow regulators

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

Note: Not for use with reactive gases.

0563-0110 110 Probe Digital Thermometer by Testo

Easy to use and precise in measurement: This is how the testo 110 compact temperature measuring instrument is convincing every day in use. The fast temperature measuring instrument show its strengths particularly in applications in laboratories or in the food safe environments: The optionally available NTC or Pt100 probes cover a comprehensive range of measuring tasks and ensure exact results with particularly high accuracy. The digital Pt100 probes can also be calibrated without the measuring instrument - so you can easily continue working with a different probe without downtime.

Of course, the testo 110 is HACCP-compliant, certified to EN13485 and, with the optional TopSafe protective cover, dust-tight and protected against water jets (protection class IP65). The temperature measuring instrument is rounded off by the testo Smart App for smartphones and tablets:

• Configuration of testo 110
• Second display
• Measurement data memory
• Display of the measured values (table, graphic progression)
• Documentation

• Simple, fast and particularly precise temperature measurement with NTC or Pt100 probes (optionally available)
• Fast in-app configuration, graph history, second screen and measurement data memory in the testo Smart App
• HACCP-compliant, certified according to EN 13485 for use in the food sector
• High-precision measurement results and high system accuracy with digital Pt100 sensors (calibration without measuring instrument)
• Audible alarm sounds if a limit value is exceeded

Kits includes:

• testo 110 - 1-channel temperature measuring instrument NTC / Pt100 with App connection, TUC probe socket and audible alarm
• Transport bag
• Calibration protocol
• 3 x AA batteries

90550-81 Dampen Adjustable Angle Bimetal Thermometer 5" Dial 24" L Range 0-250F/-20-120C 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).

• Dampened movement
• More economical than silicone gauges
• Greater temperature range than a silicone-filled gauges
• Anti-parallax dial for accurate readings
• Eliminate the risk of a leaking case and cross-contamination
• Rugged 304 stainless steel construction with a clear glass lens
• Recalibrate using the external reset screw
• Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments

600-0001-000 Isobutylene, 50 PPM (Balance Air), 34L Steel Cylinder by RAE Systems

Standard single-gas and multi-gas mixtures for monitor calibration

• Sizes range from 11 liters to 103 liters
• Convenient multi-gas mixtures
• Choose between demand-flow and constant-flow regulators

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