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WardsSci000554
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WardsSci000554
Catalog Number:
(470219-366)
Description:
The sound level sensor allows users to easily measure sound level in decibels (dB) in a variety of school settings. Simply connect and collect, as no background knowledge of sound-level weighting, response times, or the decibel scale is needed to use this sensor.
Catalog Number:
(470349-858)
Description:
Top Seller! Designed to bring simplicity to pH testing during the any process, the HI98100 Hanna Checker® Plus pH Tester is designed for direct measurement. A replaceable electrode extends the life of your digital pH tester.
Catalog Number:
(470219-314)
Description:
The Optical DO Probe Metal Guard protects the Vernier Optical DO Probe and the Go Direct Optical DO Probe cap when taking measurements in the field and helps weigh down the probe when submerged.
Catalog Number:
(470116-590)
Description:
The PAR (Photosynthetically Active Radiation) sensor reports the photosynthetic photon flux density (PPFD), which corresponds to micromoles of photons per meter squared per second (μmol m⁻² s⁻¹). This is the power of electromagnetic radiation in the spectral range that is used by plants for photosynthesis (400 - 700 nm). It features a waterproof sensor head and can be used to measure PPFD from sunlight and electric light sources. This sensor is ideal for experiments investigating photosynthesis and primary productivity and can be used in many agricultural and environmental science applications.
Catalog Number:
(76545-888)
Description:
The MDX-Series delivers digital accuracy and high-end features for specific applications. Digital seawater refractometers can be used to measure salinity in the aquatics industry.
Description:
Basic apparatus for providing contact, power supply and support to a germanium crystal on a circuit board in experiments on the Hall effect or on conductivity. Includes an integrated, adjustable constant current source to provide the current through the sample, a measuring amplifier with offset compensation for Hall voltages and heating to raise the crystal to as high as 170 °C, also featuring temperature regulation and a switchable display showing Hall voltage, sample current, sample voltage or temperature.
Catalog Number:
(470204-162)
Description:
Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation.
Catalog Number:
(470163-990)
Description:
This apparatus is used to Verifying the Boyle’s law when air is decompressed and compressed. A horizontally mounted acrylic tube having a graduated scale (0- 300cm3) along one side. A gas tap closes the tube. Pressure gauge is present next to gas tap. By changing the position of rubber stopper, the effective length of the tube can be selected. The scale measures volume and pressure by means of pressure gauze. Boyle’s law is investigated by changing position of the stopper.
Catalog Number:
(470004-758)
Description:
This three-in-one meter allows you, at the flick of a switch, to check soil pH, find out how much light a plant is receiving, and check to make sure your plants have enough water.
Catalog Number:
(470006-396)
Description:
Achieve an airtight seal with any bell jar using our economy vacuum plate. The plate measures 24×24 cm, is constructed of polyeythlene and has a rubber pad. The hose connector accommodates 6.4 mm (¼") standard tubing.
Catalog Number:
(470145-094)
Description:
This handy meter measures soil moisture at the root level to prevent over or underwatering. No batteries are needed, so there is nothing to replace or wear out. It includes an instruction booklet, watering guide, and special needs information for 15o plants that correspond to meter readings. Range: 0 (dry) to 10 (wet). Size: 4"L x 2 1/2"W x 1 1/2"H. Probe: 4 1/4"L.
Catalog Number:
(470112-962)
Description:
The High Current Sensor has a range of ±10 A. Current is measured with a Hall Effect sensor, which uses the magnetic field created by the current and therefore does not add a resistive element to the circuit. A metal shield over the Hall Effect chip reduces the influence of external magnets. A replaceable fuse protects the equipment and circuit.
Catalog Number:
(470163-928)
Description:
Comprises an inverted “U” tube with its ends closed by sintered discs. For use in experiments involving the measurement of cell EMF under conditions of forward, zero and reverse current flow. The bridge comprises an inverted “U” tube with its ends closed by sintered discs. This apparatus provides a more effective method of making reversible cells then the wet filter paper or agar gel methods. Dia. of arms 13mm, overall width 80mm, overall height 100mm.
Catalog Number:
(76545-894)
Description:
This digital urea (DEF) and battery acid refractometer has 3 scales. It measures urea (DEF), refractive index, and battery acid. It's used to ensure compliance with remissions for diesel fuel powered vehicles.
Catalog Number:
(470148-820)
Description:
Electrostatic charges are indicated by the deflection of a black plastic straw pivoted on a pin.<B> </B>The polished zinc plate on top is used to demonstrate photoelectric effect and various other electrostatic demonstrations. The metal case measures 14 cm in diameter. The scale is graduated in 10° increments in two quadrants.
Description:
These TPX jugs have a non-drip spout and excellent thumb grip on their handle making them perfect for every laboratory and classroom setting.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the
 is still displayed and you need assistance, please call us at 1-800-962-2660.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the
is still displayed and you need assistance, please call us at 1-800-962-2660.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email [email protected].
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Limited quantities of this product are available. To check availability or place an order, call Customer Service at 800-962-2660 or email [email protected].
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