$150 - $200

18771 PowerTank Lithium by Celestron

The new PowerTank Lithium keeps the charge going for the astronomer on the go. The Lithium Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries.

• Portable power pack for your computerized Celestron telescope using Lithium Iron Phosphate (LiFePO4) chemistry
• Smaller, lighter, safer, and easier to maintain than lithium-ion and sealed lead acid designs
• Up to 2000 charge cycles four times more than lithium-ion & 7 times more than sealed lead-acid designs.
• Un-recharged shelf life of up to 10 years 3 times better than lithium-ion and 10 times better than sealed lead-acid designs
• Evironmentally friendly Does not use toxic heavy metals

• The LiFePO4 has an un-recharged shelf life of 10 years compared to 3 years for the Lithium Ion and 6-9 months for a Sealed Lead-Acid battery.
• The battery performance of the PowerTank Lithium degrades at a much slower pace than other chemistries.
• The LiFePO4 can be charged and discharged 2000 times compared to only 500 for a Lithium Ion battery and 300 for sealed lead-acid designs.
• The batteries will last as long as the telescope you use it with!
• The LiFePO4 uses phosphates instead of environmentally hazardous elements like cobalt or lead commonly found in other rechargeable batteries.
• Can withstand higher temperatures than lithium-ion designs and will not be a fire danger if accidentally punctured.

This combined with it's rugged design make it the perfect outdoor power supply.

Keep your telescopes, smartphones, tablets, GPS systems, cameras and other USB-powered devices as active as you are with PowerTank Lithium the ideal outdoor portable-charging solution for your electronic gear.

Part Number: 34L-99-200

0563 0104 104 Folding, Waterproof Thermometer by Testo

The folding thermometer testo 104 measures food temperatures precisely at any time in production, storage and processing, in gastronomy, supermarket chains, food retail and wholesale, or in industrial areas. The testo 104 already begins measurement from a fold-out angle of 30°, and can therefore be used flexibly. After measurement, the probe can be simply folded away, and the instrument stored safely until the next measurement for example in a trouser pocket. The folding thermometer testo 104 is compliant with HACCP and EN 13485.

• The folding thermometer testo 104 is convenient for measurements of all kinds
• It is ideally suited to core temperature measurements thanks to a robust metal folding joint and a long, stable measurement probe.
• Protection class IP65, allows cleaning under running water and use under all conditions.
• The rubber-coated surface guarantees non-slip handling.
• The especially large, illuminated display allows fast and error-free readout of the measurement values.
• Thanks to the coloured strips included in delivery, the instrument can be allocated to individual persons or certain areas of work.
• It has automatic final value recognition thanks to Auto-Hold, and storage of min./max. values.
• It is the 1st thermometer which combines a folding mechanism and waterproofness.

600-0066-000 Propane, 100 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

BW Technologies Manual Aspirator Pump Kit with Probe (1 foot or .3 meters)

The BW Technologies Manual Aspirator Pump Kit with Probe is approximately 1 foot in length (or .3 meters). The durable and tough plastic hose ensures that there is no leakage and protects the accuracy of the device's measurements. The unit features a manual aspirator pump complete with an easy grip rubber bulb. The bulb and aspirator are manufactured with the highest safety standards and are sealed to prevent inaccuracy caused by leakage.

Part Number: MCAS01

Part Number: GD-HPCC-3

PP1085-K Potassium Phosphate Dibasic, ACS (Dipotassium Hydrogen Phosphate), 500gm by AquaPhoenix

• CAS No. 7758-11-4
• K2HPO4 FW=174.18

Specifications

• Grade: ACS
• Packaging Type: Poly
• Size: 500 gram

44ES-49-100 44 Liter Single Gas (100 PPM CO) Ecosmart Refillable Cylinder, Nitrogen Balance by Gasco

The NEW 44-liter refillable, portable cylinder that delivers 29% more calibration gas than the disposable 34-liter cylinders. 44-liter ecosmart cylinders hold pure and mixed gases and are interchangeable with the current 34-liter aluminum cylinders on the market.

Features & Benefits

• 44-liter
• Refillable
• 29% more capacity than the standard 34-liter cylinder
• Portable
• Lightweight
• Interchangeable with 34-liter disposable cylinders
• Increases efficiency
• Holds pure and mixed gases
• Eliminates disposal fees and regulatory paperwork

Part Number: CGTR341

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