$200 - $300

Part Number: 900-30

0560 7207 720 RTD Thermometer by Testo

Testo 720 is the single channel measuring instrument for demanding measurements in laboratories and in industry. Air, immersion and surface probes in a measurement range from -100 to +800 °C can be attached to the thermometer for different measuring tasks. In combination with the indestructible TopSafe, testo 720 is resistant to corrosive media. The glass-coated probe has proved its worth in day-to-day use in the laboratory, as it too is resistant to corrosive media. An audible alarm sounds when limit values are exceeded. Current measurement data, as well as min/max data can be printed out on site on the Testo printer.

• On site printout on Testo printer
• Continuous display of max/min values
• Hold button to freeze readings
• Display light
• Audible alarm (adjustable limit values)
• Accurate one channel measuring instrument for Pt100 or NTC probe
• Resistant to corrosive media with TopSafe (optional)
• TopSafe, the indestructible protection case (optional)

72030 SkyMaster Pro 15x70 Binocular by Celestron

SkyMaster Pro binoculars are the ideal choice for amateur astronomers or anyone that observes at great distances. Compared to lower-priced large aperture binoculars, SkyMaster Pro uses superior optics, coatings, internal parts and housing materials. With large objective lenses, BaK-4 prisms and fully multi-coated optics utilizing Celestron's proprietary XLT coating technology, the view through a SkyMaster Pro is second to none at this price point.

• Large 70 mm objective lenses for excellent light gathering in low light conditions or for astronomical observing
• Detachable RSR rail for attaching an optional red dot finderscope
• Rubber armored for improved ergonomics and protection from every day use in the field
• Waterproof and nitrogen purged for use in all weather conditions

Massive Objective Lenses

The 70mm objective lenses have tremendous light gathering capabilities, delivering superior low light performance, even in the dimmest conditions. Choose SkyMaster Pro for use at dusk, dawn and nighttime astronomical viewing.

Fully Multi-Coated Optics and BaK-4 Prisms

Every air-to-glass surface is multi-coated with Celestron's proprietary XLT coating technology. These coatings coupled with BaK-4 prisms increase light transmission through the optical path and deliver crisp, high contrast images with outstanding resolution.

Built in Tripod Adapter

The built in tripod adapter of the SkyMaster Pro 15x70 allows the binocular to be attached to a tripod for added stability during longer viewing sessions and also allows a red-dot finder to be attached to it utilizing the included RSR "Reflex Sight Ready" Rail. When properly aligned with the binocular, the red-dot finder will allow objects to be brought into view quickly.

RSR "Reflex Sight Ready" Rail

The tripod adapter included with the SkyMaster Pro not only allows the binocular to be attached to a tripod for added stability during longer viewing sessions, but also includes a removable rail for attaching a red dot finderscope. When properly aligned with the binocular, a red-dot finder helps you locate objects quickly and center them in the binocular.

Lightweight, Waterproof Construction

A polycarbonate and aluminum housing makes SkyMaster Pro durable and lightweight. The housing's protective rubber armor is extremely rugged and can stand up to tough use.

The fully waterproof housing for use in all weather conditions provides peace of mind when unexpected weather rolls in. The housing is also filled with dry nitrogen gas to prevent the internal lenses from fogging when moving between extreme temperatures or when using the binocular in damp conditions.

Extended Eye Relief

17 mm of eye relief allows for comfortable viewing for both eyeglass and non-eyeglass wearers. Eyeglass wearers can see the entire field of view while looking through the eyepiece with their glasses on. For those that do not wear eyeglasses, the rubber eyecup positions the users eye behind the eyepiece at the correct distance for optimal viewing.

Enhanced Magnification

Bring distant objects into view with 15x magnification great for observing celestial objects in greater detail, searching for wildlife in the brush or viewing a distant object on the horizon.

Part Number: F105325PM67

K-7356 COD Vials, 0-150 ppm (LR) Mercury-free, 150 vials by AquaPhoenix

All COD Kits require the use of a Digestor Block and the V-2000 Photometer, an A-7320 COD Photometer, or a spectrophotometer capable of accepting a 16 mm round cell. Photometers sold separately.

A fresh reagent ampoule blank must be prepared for each series of tests; therefore the number of samples that can be tested with each kit will vary.

Part Number: M1013200PN

Part Number: M101350PN

3175 Microcomputer Based Conductivity/TDS/Temperature Benchtop Meter by Jenco

Jenco EC3175 is a new conductivity meter with temperature readout, backlit LCD display, selectable cell constant and a streamlined look.

This benchtop meter is RoHS compliant.

• Clear, large LCD display with backlight
• Displays conductivity and temperature at same time
• Accepts 2-wire conductivity cells with adjustable k=0.1, k=1 and k=10 cell constants for improved flexibility and accuracy
• Convenient one point calibration
• Calibration data is stored in memory and is ready for use on power up
• Automatically selects one of three conductivity ranges to display readings
• Readings are automatically compensated for temperature (ATC)
• Meter automatically switches into manual compensation when temperature probe is not present
• Automatic lock mode is available to lock in stable readings
• Intuitive operation with membrane keypad with tactile and audio feedback.
• Splash resistant case is made with durable, reinforced plastic for added protection. protective covers for connectors are included
• Smaller case does not clutter valuable desk space
• 8pin DIN connector for conductivity cell & 10k thermistor
• AC adaptor or battery power

WD-35608-57 Conductivity/TDS Cell, Ultem Body, Steel Sensor, 10 ft Cable, K = 0.1 (Use with CON 400, CON 410, TDS 400, pH/CON 300 and pH/CON 510 meters) by Oakton

Feature built-in temperature compensation

• Ultem Cells with K = 1.0 have removable a probe guard for easy cleaning

Choose from three different cell constants:

• K = 1.0 for midrange conductivity measurements.
• K = 10.0 for high conductivity measurements (near or above 20 mS)
• K = 0.1 for low conductivity measurements (near or below 20 µS)

Each conductivity/TDS cell has a temperature range of 0 to 100°C.

94460-44 Traceable Memory-Loc™ Datalogging Thermometer with Calibration; 1 Stainless Steel Probe by Digi-Sense

Easily monitor temperatures overnight or for any time period - stores over 1 million temperature observations. Datalogger will stop recording when storage is full and will not overwrite recorded data. Memory can be cleared after downloading data and alarm events. Set high and low alarms in 1° increments; alarm sounds when temperature rises above or falls below set points. The alarm tracking feature stores data for up to 10 different alarm events detailing when the alarm state occurred, as well as when the unit returned within range. Alarm state indicator include audio alerts and flashing LCD segments. Transfer data recorded in a CSV format to any computer via a USB flash drive - no software is required. Unit continues to record data while downloading data. Sampling rate is 5 sec (10 sec for models 98768-55, -56, -59, and -60). Select logging interval ranging from 1 min to 24 hours. Other status indicators include low-battery, memory full, USB data transfer, and active alarm state. Probe is attached to a 10-ft (3 m) microcable that permits a door to close on it. Mount meter with included hook-and-loop strips, wall-mount slots, or use flip-open stand on benchtop.

Select from glycol-filled glass, or vaccine bottle probe(s), standard plastic Bullet™ probe(s), or stainless steel probe(s). Bottle probes contain nontoxic glycol solution which is considered GRAS (generally recognized as safe) by the FDA. The solution filled bottle simulates the temperature of other stored liquids and eliminates the rapid temperature fluctuation caused by opening the refrigerator/freezer door. Vaccine bottles are designed to fit vaccine trays. Use standard Bullet probe to measure air and liquid temperatures. Bullet probe sensor and cable may be completely immersed; sensor measures 3/4"L x 0.187" dia (19 x 4.75 mm). Durable stainless steel probes measure 6-1/4"L x 0.125" dia (159 x 3.18 mm) and withstand both low and high temperatures - ideal for measuring temperatures of air, liquids, and semi-solids.

Traceable® Products have an individually-numbered Traceable® 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.

Thermometer features a stainless steel probe.

Key Features

• Store up to 10 unique alarm events, memory can be cleared after downloading data
• Smart-Alarm™ with visual/audible alarm continues to alert even if the unit returns to nonalarm conditions
• Triple-display - shows high, low, and current temperature simultaneously
• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
• Thermometer logs 2 years of observations with a 1 minute logging interval. Device will stop recording when storage is full and will not overwrite recorded data. Data is unable to be deleted from memory once stored. Meter will store 1 million temperature observations

Includes

NIST-Traceable calibration certificate with data, stainless steel probe with 5-ft cable, magnetic strips, hook-and-loop strips, flip-open stand, and batteries.

Part Number: M197125LM4

600-0088-000 Butadiene, 5 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