$200 - $300

AI463 SX721 Handheld pH/ORP Meter Kit by Apera

Apera SX721 is designed for lab-grade measurement of pH and ORP, suitable for general water solutions' applications such as water treatment, groundwater, surface water, hydroponics, environmental monitoring, beverage making, etc.

Basic Features

• Intelligent functions – auto. calibration, auto. temperature compensation, self-diagnosis, data logging, auto. power off, and more.
• Digital filter technology – enhance the meter's response time and measurement accuracy
• Automatic electrode recognition – the meter automatically switches to the right parameter mode according to the connected electrode
• Data logging – 400 sets of data storage and recall
• Built tough – IP57 water-resistant structure, ideal for use in harsh environment

pH Features

• Built with lithium glass membrane and fiber ceramic junction, the 201T-S pH/temp. electrode provides the foundation for quick response and accurate pH readings.
• 1 to 3 points of quick auto. calibration, recognizing up to 13 kinds of pH buffers.
• The self-diagnosis function helps you understand common problems and how to fix them.
• With the 8-pin to BNC converter (sold separately), a variety of LabSen pH electrodes can be connected to meet the testing needs of specialized applications.

ORP Features

• Equipped with 301Pt-S Platinum ORP electrode featured with stable potential and fast response
• No need for ORP calibration
• The platinum sensor is easy to clean and maintain
• Comes with 222mv ORP standard solution for checking accuracy and sensor conditioning

52350 Ultima 80 - 45 Degree Spotting Scope with Smartphone Adapter by Celestron

The tried-and-true Ultima 80mm angled spotting scope is now available bundled with the Celestron Smartphone Adapter. It's an all-in-one digiscoping solution, perfect for outdoor lovers of all stripes.

• 20-60x magnification range
• 45° viewing angle to observe comfortably for extended periods
• Includes a smartphone adapter so you can capture images and video through the scope instantly
• Tripod adaptable for long-duration or long-distance viewing
• Durable body to stands up to minor bumps and jolts while protecting the optics from wet/humid weather and other environmental challenges

Imaging is Easy with the Celestron Smartphone Adapter

Capture images and video right on your smartphone with this handy smartphone adapter. With its light, rigid frame, this accessory allows you to connect any smartphone to the Ultima eyepiece, or any eyepiece with an outside diameter of 45mm or smaller. The additional magnification provided by the eyepiece allows your phone to capture stunning images of wildlife, distant objects, and even the Moon at night! This smartphone adapter installs in seconds by simply clamping over the top of the eyepiece. Tightening knobs securely lock your phone in place. Note that some large and/or excessively bulky phone cases (including folio style cases) may need to be removed for the phone to fit in the adapter.

Our Most Loved Spotting Scope

The Ultima 80mm spotting scope is one of the most popular models in our Ultima series. The scope features a 45° viewing angle, excellent fully multi-coated optics, and a versatile 20-60x zoom eyepiece. Its rugged and portable design makes it easy to transport anywhere.

Perfect for a Variety of Uses

The Ultima 80 angled spotting scope comes with a 20x-60x zoom eyepiece. Use the lower magnifications to scan the landscape and quickly punch in for detailed, up-close views of small subjects when needed. The large, ergonomic focus knob ensures your object is always in clear view. Both the zoom and focus knobs come with a rubber grip for easy adjustments while wearing gloves. The Ultima series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument.

Ways to Observe

The Ultima spotting scope is tripod adaptable, providing a variety of options for viewing. This spotting scope can easily be secured to a stable platform for comfortable long-duration or long-distance viewing.

The Ultima spotting scope comes with a view-through carrying case. You can leave the case on when for viewing, transport, and storage. It can even remain on while the scope is mounted on a tripod.

18004-24 Traceable ONE Single-Use USB Temperature Data Logger, 90 Day, 10 Minute Interval, 2 to 8°C; 10/pk by Digi-Sense

These data loggers can be used for monitoring and recording temperatures during shipments, storage, or experiments. They are ideal for food, pharmaceutical, or laboratory use any application where a small accurate datalogger is required.

The data logger features a time delay of 30 minutes so the logger will not alert when the temperature is within the alarm zone, until the delay time elapses. Protective plastic pouch keeps logger dry, eliminating concerns when shipping materials with cold packs, ice, or in damp environments. To maintain IP67 waterproof rating, do not tear open pouch before data download.

Products have an individually-numbered Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• LED alarm indicator for visual status indication
• Time delay of 30 minutes before logging begins for enhanced logging accuracy
• Protective plastic pouch maintains waterproof IP67 rating
• Bar code for in-house scanning
• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
• Compact, single-use datalogger with 90 day logging duration in 10 minute intervals
• Low to High alarm parameter range of 2 to 8°C

Includes

Battery (3.0 V CR2450 lithium) and NIST-Traceable calibration certificate with data.

90550-45 Dampened Adjustable Angle Bimetal Thermometer, 3" Dial, 24" L/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 silicone-filled gauges
• Anti-parallax dial for accurate readings
• Eliminate the risk of a leaking case and cross-contamination
• 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

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

Part Number: F1005200PN

Old Part Number: F100550A
New Part Number: F100550PA

Part Number: F105325PM90

Part Number: M197140LM3

TG18-3WW-MPM 18" Tuff & Gusty Tent Fan with Multi Bracket Pole Mount by Schaefer

Schaefer pole mounted tent fans are ideal for tent cooling, heat circulation and detracting bugs. The all-white 12" fans blend in with most tents and are so quiet you don't hear them, you only feel them. Simply mount them on the tent side poles and turn them on. Use one tent fan every 15-20 feet.

Features and Benefits

• Mounts onto tent poles, saving floor space
• Wide variety of mounting options available for flexible and easy installation
• Quiet operation, high efficiency and output
• Easily stored and transported
• Misting kits available for even greater cooling

S272CD/10/TL pH Electrode, double-junction, 10ft (3M), TL by Sensorex

This series of electrodes is designed to provide an economical multi-purpose solution for in-line or submersion pH measurements. Based on our proven S200C bulb and S350CD flat surface pH glass technology, these rugged and durable electrodes are available in Ryton nipples with 1/2" or 3/4" NPT threads; or in our durable epoxy body with or without quick disconnect top caps. Choose from single or double junction designs, flat or recessed measuring surface configurations and cable lengths and connectors as required.

• Economical design for in-line or submersion use
• Choose from single or double junction models
• Threaded 1/2" or 3/4" NPT connections
• Choose from spherical or flat pH measuring surfaces
• Special models for low ionic and other specialty applications available