$25 - $50

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

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

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

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

WD-35653-12 2764 µS Conductivity/TDS "Singles" Calibration Solution Pouch, 20 pouches each with 20 mL of solution by Oakton

Choose from economical 1-pint solution bottles or individually sealed Singles calibration pouches.

All OAKTON Conductivity/TDS calibration solutions are cross checked using different test methods, premixed, and ready to use.

OAKTON conductivity/TDS solution bottles are labeled with the name and CAS number for all ingredients to conform with Right-to-Know requirements, and includes an MSDS. Solutions come in one pint bottles. Dimensions: 7.75"H x 2.25" dia. Shpg wt: 1.1 lbs.

OAKTON Conductivity Singles pouches are convenient, air-tight pouches with high-precision calibration standards. Ideal for field use-take them to your test site for on-the-spot calibration. Pouches are labeled with equivalent values for ppm in KCl, NaCl and 442 and Conductivity values at 25°C and CAS numbers for Right-to-Know requirements. Each box contains twenty 20 mL pouches. Dimensions: 4.5"L x 5"W x 4.5"H (box). Shpg wt 1 lb per box.

• NIST traceable materials
• ±1% accuracy at 25°C

93585 PowerTank Glow 5000 Red Flashlight/Charger by Celestron

The PowerTank Glow 5000 is an essential for any amateur astronomer. This 2-in-1 device features a rechargeable handheld red LED flashlight with three brightness levels and a 5000 mAh 5V DC power bank to charge mobile devices. The PowerTank Glow 5000 attaches onto one of your telescope tripod legs or other convenient locations using one of the two included silicone straps so it is safe and out of the way. A wrist strap is also included for handheld use.

• A must-have 2-in-1 accessory for amateur astronomers: a red flashlight PLUS a USB power bank for charging mobile devices in the field.
• Red LED flashlight features three brightness levels to preserve your night vision.
• USB Type A output port charges smartphones, tablets, and other 5V DC electronics.
• Rechargeable 5000mAh 5V DC lithium-ion battery delivers a full recharge to smartphones.
• Silicone mount straps included to attach PowerTank Glow 5000 to your telescope tripod leg or other convenient locations.

Perfect astronomy flashlight

A red flashlight is one of the most beneficial accessories you can own as an amateur astronomer, no matter how occasional your night sky observations may be. The PowerTank Glow is the perfect astronomy flashlight as this will not compromise your vision at night with its red LED flashlight. This flashlight has three brightness levels that allows you to adjust the brightness depending on how dark your observing site is. When your flashlight needs power, no need to change out your batteries like traditional flashlights, just recharge the PowerTank Glow.

The perfect power solution for SkyPortal and other planetarium apps

Explore the Solar System with your phone or tablet without draining your battery. With hours of continuous use, planetarium apps like Celestron's SkyPortal can drain your smartphone's battery. What's more, your phone may not be at 100% when you begin observing. Those worries become a thing of the past with PowerTank Glow 5000. This compact power bank delivers a full charge to mobile devices with its 5000 mAh capacity, so you can use your smartphone confidently to scan the skies, capture images through the eyepiece, and share the experience with friends on social media.

High quality lithium battery technology you can trust

The power bank has an output port for charging 5V DC devices, including smartphones and tablets. The input port is used to recharge the internal lithium-ion battery. The battery has a minimum of 500x charge cycles, so it can serve your astronomy needs for years to come. The input/output ports have integrated covers to protect them when they are not in use. The PowerTank Glow 5000 has overcharge protection, so the battery cannot be damaged if inadvertently left recharging for an extended period.

Easy to use in the field

The PowerTank Glow 5000 has a single button that controls all its functions. Short presses of the button turn the red flashlight on, cycle through the three brightness levels starting with the dimmest, and then turn the flashlight off. Pressing and holding the button turns device charging on and off.

The flashlight can be used while the output port is charging an external device. Four red battery indicator LEDs indicate the battery charge status, while a green LED indicates when the PowerTank Glow 5000 is providing power to a device.

10-102-45 Carbon Monoxide Colorimetric Gas Detection Tube, 0.2 - 4% (10 Tubes / Box) by RAE Systems

RAE Systems colorimetric gas detection tubes enable quick, on-the-spot measurement of a wide range of toxic and combustible gases and vapors. RAE Systems tubes are easy to read, and provide a sharp, clear color change directly corresponding to the concentration of gas present. RAE Systems tubes are compatible with the RAE Systems piston hand pump, a reliable way to draw samples of an exact volume required for the most accurate measurements.

Key Features

• Wide assortment of tubes available to detect over 300 gases and vapors
• Easyto use, even in multiple layers of gloves
• Easy-to-read with sharp,clearcolorchange
• No calibration or other maintenance required

Applications

• Oil and gas
• Chemicals and petrochemicals
• Agriculture and pestcontro
• Food and beverage production
• Environmental protection
• Fire service
• HazMat response
• Nationalsecurity

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

9429000 Chlorine, Free Chemkey Reagents by AquaPhoenix

Free Chlorine Chemkeys, range 0.04 - 4.6 mg/L Cl2. For SL1000 Portable Parallel Analyzer (PPA). Box of 25.

USEPA accepted for reporting in drinking water analysis using Hach Method 10260.

Part Number: HU-SCREW

TT72P Class 7.2 TDG Label (Paper) by GHS Safety

Shipping Labels are essential for packages that contain dangerous goods. GHS labels are available in two materials. Paper for indoor applications and in vinyl for extended outdoor usage using a fade resistant ink. These labels meet the UN Recommendations on the Transport of Dangerous Goods.

Available in 500/roll formats.

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

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