$150 - $200

Part Number: F107950PA

Part Number: J197160LM2

BK-1000-P-PK Beaker, Plastic 1000mL - 3 pack by AquaPhoenix

Continuously use Nalgene™ PMP Griffin Low-Form Beakers at temperatures of 150°C with intermittent service to 175°C. These polymethylpentene beakers have the transparency of glass, excellent chemical resistance and heat tolerance. All sizes of beakers have easy to read, silk-screened graduations.

MA887 Digital Refractometer for Seawater Measurements by Milwaukee

The MA887 is an optical instrument that employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates.

The digital refractometer eliminates the uncertainty associated with mechanical refractometers and is easily portable for ship, shore or home use.

The MA887 refractometer is an optical device that is simple and quick to use. Samples are measured after a simple user calibration with distilled or deionized water. Within seconds, the refractive index and temperature are measured and converted into one of three popular measurement units; Practical Salinity Units (PSU), Salinity in parts per thousand (ppt), or Specific Gravity (S.G. (20/20)).

All conversion algorithms are based upon respected scientific publications using the physical properties of seawater (not sodium chloride). The temperature (in °C or °F) is also displayed on the large dual level display along with helpful message codes.

Key features include:

• Dual-level LCD
• Automatic Temperature Compensation (ATC)
• Easy setup and storage
• Battery operation with Low Power indicator (BEPS)
• Automatically turns off after 3 minutes of non-use.

MW101 Standard Portable pH Meter with 0.01 pH Resolution by Milwaukee

Standard portable meters with no frills! Milwaukee's durable meters for quick and reliable measurements.

Milwaukee's Standard meters are manufactured to be easy to use, practical and accurate. Ideal for the classroom, laboratory or for general field use.

MW101 performs pH measurements with a 0.01 pH resolution and with manual temperature compensation. The meter is supplied with pH electrode and calibration solutions.

610-0033-000 Carbon Dioxide, 2.5% (balance nitrogen), 34 Liters by RAE Systems

Green cylinder technology not only saves the environment, it also saves time and money.

• Gas cylinder size options 34, 58 and 116 liter
• Green Refillable cylinder
• "Strip and Ship" program for easy return of empty cylinders
• Small cylinder footprint
• Cylinder technology offers exceptional gas stability
• All gas cylinders use the same valve

Part Number: F107910PM4

Part Number: J10131VN

WD-17001-10 InnoCal NIST-Traceable Calibration; Thermocouple Probe (Probe Only) by Oakton

All calibration certificates contain as-found and as-left data, estimated measurement uncertainties (emu's) and test uncertainty ratios (TUR's) at no additional cost!

NIST-traceable calibration allows you to confirm that the specific asset you purchase does in fact meet the manufacturer's published specification. Receive your product calibrated and ready to use rather than sending it to a third-party or internal calibration lab and incurring additional delays. EPA, USDA, ISO and GLP/GMP standards require regular NIST-Traceable calibration of all test equipment being used in critical applications.

Calibrations on thermocouple probes are performed using direct comparison in high-stability liquid and dry baths using high-precision PRT's and SPRT's and displays. Measurements can be performed at four points between -197C and 1300C. Points are generally selected at standard ITS-90 points across the range of the probe but customer-specified points can be accommodated. This calibration is for the thermocouple probe only; if you want the probe calibrated with a meter as a system, see sku 17002-10.

• Provides traceability to NIST
• Lists the environmental conditions present at time of calibration
• Certificate lists actual values, uncertainties, and tolerances
• Regular calibration helps you meet ISO, EPA, GLPs/GMPs and other quality standards
• Not an accredited certificate

Includes

Calibration reports issued by InnoCal may not be reproduced, except in full, without written permission of InnoCal. The results stated in our reports relate only to the items tested or calibrated.

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

Old Part Number: Z1294400
New Part Number: Z1294400PA

Part Number: J197120LM2

MW700-WP Standard Portable Lux Meter with Waterproof Probe by Milwaukee

MW700 is a portable Lux meter designed to perform light measurements. MW700 with Faster Micro Processor, has a smaller, ergonomic and lighter case design. Other features include 100% larger and easier to read LCD Display and long battery life.

These handy and ergonomically designed portable meters are ideal for anyone working on a low budget and still requires fast and reliable measurements. These portable meters are suitable for a wide range of applications, such as Educational, Agriculture and Horticulture, as well as water and environmental analysis.

Both models are supplied with a light sensor connected to the meter that measures from 0 to 50000 Lux.

Average indoor lighting ranges from 100 to 1000 Lux and average outdoor sun lights about 50000 Lux. Lux is a unit that indicates the density of light that falls on a surface.

The light is necessary for the development of the plants. In fact, it is necessary a sufficient contribution of light in order to favor the photosynthesis and the closing of the plants.

The supplement of light by means of lamps electrical workers is the method simpler and economic in order to bring the necessary light to the plants.

The human eye is sensitive only to blue, green, and red light, so in calculating the Lux falling on an object, only the light that the human eye sees is counted. When only infrared light falls on an object, the Lux is counted as zero since our eyes see nothing. Mathematically, a spectral weighting function becomes convolved with the actual illumination spectrum to calculate Lux exactly.

This is the formal definition of Lux and it makes Lux an unusual unit of measure.