$100 - $150

Enables unit to be worn either on a belt or with a shoulder strap.

90491-02 Adjustable Angle Bimetal Thermometer, 3" Dial, 4" 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

21035 Travel Scope 70 with Backpack by Celestron

This telescope was designed with traveling in mind while offering exceptional value. The Travel Scope is made of the highest quality materials to ensure stability and durability. All this adds up to a telescope that gives you a lifetime of pleasure with a minimal amount of maintenance. Featuring a compact and portable design with ample optical performance, the Travel Scope is ideal for terrestrial as well as casual astronomical observation.

• All coated glass optical elements for clear, crisp images
• Erect image diagonal so that your views are correctly oriented
• Smooth functioning altazimuth mount with easy pointing to located objects
• Preassembled aluminum full size photographic tripod ensures a stable platform
• Quick and easy no-tool set up
• The telescope and tripod fit inside the custom backpack for easy traveling and storage
• BONUS Astronomy Software download with a 10,000 object database, printable sky maps and 75 enhanced images

0554 2160 Handle Adapter for Connecting Testo 440 Air Flow Probes by Testo

• For connecting probe heads for air velocity probes or extendable telescope for air velocity probes to the universal handle with Bluetooth or cable

Includes:

Handle adapter for connection to air velocity probes with universal handle.

WD-35634-05 EcoTestr™ pH1 Waterproof Pocket Tester by Oakton

Automatically recognizes pH buffer standards

The economical, simple-to-use pH tester measures pH levels and temperatures quickly, displaying them both simultaneously on a large dual-line LCD. It has a pH range from 0 to 14 with an accuracy of ±0.1 pH. The tester features up to three pH calibration points with auto NIST and US buffer recognition.

Additional features include a long-lasting durable electrode with polymer reference electrolyte; status icons for measurement stability, calibration, and battery life; and self-diagnostics. The IP67-rated housing features an easy-to-grip design and floats if accidentally dropped in water when sensor cap is on. The tester, powered by four AAA batteries, can operate up to 400 hours continuously. The unit will auto power-off after 8 minutes of nonuse to conserve power.

• Large LCD dual-line display shows pH and temperature readings simultaneously
• Rugged IP67-rated housing is waterproof, dustproof, and floats in water
• Leakproof cap with fill line functions as a sample/calibration and hydrating cup
• Secure attach a lanyard to prevent losing or dropping in the field
• Auto shutoff extends battery life

WD-35634-68 Replacement ORP Sensor for Testr 30; DJ by Oakton

Replace electrodes when they break, no longer hold calibration, cannot be rehydrated, or are not compatible with your sample

• Choose from a variety of accessories for Oakton® meters

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

Measuring Range: -50 to +125 °C

90551-13 Adjustable Angle Bimetal Thermometer, 5" Dial, 6" 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).

• 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

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