$75 - $100

Part Number: H103540LA

WD-20250-51 Compact Digital Multimeter, Auto-Ranging with NIST-Traceable Calibration by Digi-Sense

Get quality instruments that deliver consistent, reliable measurements without depleting your budget. These durable, handheld multimeters are an economical alternative to higher-priced instruments on the market today.

Features

• Reliable measurements, guaranteed! Precalibrated to NIST-traceable standards
• Autoranging on select models, automatically selects the optimal measuring range for maximum resolution
• Stay safe and prevent damage with overload protection
• Increased durability with double-molded plastic housing

Three-in-One Digital Multimeter (20250-52)

• Three practical instruments in one: multimeter, noncontact voltage detector, and flashlight
• Permanently attached test leads so they don't get lost
• Diode check and continuity test included to check accuracy

Compact Digital Multimeters (20250-50, -51)

• CAT III-600 V designation for safety
• Available in manual ranging version
• Bright backlight display has 1.1" tall digits
• Model 20250-50 offers dedicated battery test function to check the quality of your 9 V and 1.5 V batteries

Industrial Digital Multimeters (20250-53, -54)

• CAT III-600 V and CAT III-1000 V ratings for safety
• IP67 rating for dustproof and waterproof protection
• Flashing red LED alerts you to presence of live voltage
• Model 20250-54 has True RMS for improved reading accuracy and an analog bar graph for viewing trends

Applications

• Electrical
• Industrial
• Laboratory
• HVAC
• R & D

Includes

Test leads (models 20250-50, -51, -52), carrying case (models 20250-50, -51) batteries, and NIST-traceable calibration report with data supplied by InnoCal.

90446-42 Probe Type-J 12" L Fiberglass TCPl by Digi-Sense

Magnesium Oxide insulated thermocouples, commonly referred to as MgO thermocouples, are used in many process and laboratory applications. Many desirable characteristics make them an excellent choice for general and special purpose applications. They are available in all thermocouple element types, single or dual elements, a wide variety of sheath diameters / materials, rugged in nature, bendable, and have fairly high temperature ratings.

• 316 stainless steel sheath

93450 Ultima Edge - 10mm Flat Field Eyepiece - 1.25" by Celestron

See the whole picture with Ultima Edge. These flat-field eyepieces were designed to provide an ultra-sharp, ultra-clear, crisp image from the center all the way to the edge of the field of view. The 10mm Ultima Edge eyepiece features fully multi-coated optics and a 5-element lens design, maximizing light transmission.

The Ultima Edge 10mm has a generous 60° field of view, perfect for viewing planets, stars and the Moon's surface. This eyepiece provides high power magnification, perfect for those times when you want to get up close to smaller objects.

Body

The 10mm Ultima Edge eyepiece's main housing is machined from high grade aluminum with a black anodized outer surface.

Its 1.25" mounting barrel is internally threaded to accept threaded to accept standard 1.25" filters and adapters. It is compatible with 1.25 star diagonals and focusers. On the exterior of the eyepiece, you will find a uniquely designed, molded rubber grip ring for non-slip handling during observing sessions, even if you have gloves on.

Viewing through the 10mm Ultima Edge eyepiece is comfortable for both eyeglass wearers and non-eyeglass wearers alike, thanks to the fold-down rubber eyecups and long eye relief of 16mm.

Convenient Parfocal Design

Spend more time observing and less time focusing! When you buy more than one Ultima Edge eyepiece, you can switch between them without refocusing thanks to their parfocal design. With a set of Ultima Edge eyepieces in your kit, you'll be able to enjoy a wide range of high and low power views–and switch between them quickly and easily. That means you can get more out of every observing session.

NOTE: Ultima Edge 24mm is not a parfocal eyepiece. Ultima Edge eyepieces are only parfocal within the line and do not maintain focus when swapped with parfocal eyepieces from other brands or series.

• 10mm parfocal Ultra Flat Field eyepiece designed for 1.25" focusers
• Incredibly crisp views from center to edge of field
• Fully multi-coated, 5-element lens design for excellent light transmission
• Wide 60° apparent field of view allows you to see more of the night sky
• Generous 16mm eye relief and fold-down rubber eyeguard for comfortable viewing with or without eyeglasses
• Molded rubber grip ring for non-slip handling

H-10-143-10 Diesel & Jet Fuel Colorimetric Gas Detection Tube, 0.5 - 25 ppmv (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

WD-00653-11 Buffer Solution, pH 6.86; 5 x 60 mL Bottles/Pk by Oakton

• Oakton pH Buffer Solutions have pH/temperature tables printed on the labels for accurate calibrations (not on 60-mL, but included as insert)
• Manufactured under ISO 9000 quality guidelines and traceable to NIST standards
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days
• Buffer Options: pH 1.68 buffer available in clear, pH 4.01 buffer available in red, pH 6.86 buffer available in clear, pH 7.00 buffer available in yellow, pH 9.18 buffer available in clear, pH 10.01 buffer available in blue, pH 12.46 buffer available in clear

Convenient 60-mL bottles come in a pack of five - ideal for field use. Grab one when you're on the go! Standardized against NIST-traceable pH references for meters with 0.01 resolution.

Store buffers away from direct sunlight.

• All Oakton pH buffers are traceable to NIST standard reference materials
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• If unopened, shelf life is 2 years
• NIST buffer value of pH 6.86

WD-00653-12 Buffer Solution, pH 9.18; 5 x 60 mL Bottles/Pk by Oakton

• Oakton pH Buffer Solutions have pH/temperature tables printed on the labels for accurate calibrations (not on 60-mL, but included as insert)
• Manufactured under ISO 9000 quality guidelines and traceable to NIST standards
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days
• Buffer Options: pH 1.68 buffer available in clear, pH 4.01 buffer available in red, pH 6.86 buffer available in clear, pH 7.00 buffer available in yellow, pH 9.18 buffer available in clear, pH 10.01 buffer available in blue, pH 12.46 buffer available in clear

Convenient 60-mL bottles come in a pack of five - ideal for field use. Grab one when you're on the go! Standardized against NIST-traceable pH references for meters with 0.01 resolution.

Store buffers away from direct sunlight.

• All Oakton pH buffers are traceable to NIST standard reference materials
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• If unopened, shelf life is 2 years
• NIST buffer value of pH 9.18

Part Number: H197140LA

TK1080-Z Neutralizing Amine Test Kit by AquaPhoenix

1 drop = 4, 5, or 6 ppm

EndPoint ID test kits are packaged in a durable plastic case and include all reagents, equipment and instruction card to complete approximately 60-75 tests. Color coded reagent caps match the color bar on the instruction card for easy identification when running multiple tests and our photographic, step-by-step instructions keep testing simple and help users easily identify color changes.

Old Part Number: HP10725
New Part Number: H10725VN

Old Part Number: HP107204
New Part Number: H1072.4VN

MW14 Iron (High Range) Mini-Colorimeter by Milwaukee

The revolutionary new range of Milwaukee handy photometers are compact and easy to use, have a modern design, and measure Free Chlorine (MW10); Total Chlorine (MW11); Phosphate (MW12); Iodine (MW13) and Iron (MW14). Their main advantages are the small size, and the real simplicity when doing measurements on the spot. Within a few minutes you can get the required result on the LCD and the instrument directly displays the concentration of the specific component in ppm. The meter automatically turns off after 2 minutes in order to save the battery.They work exactly the same way as the other Milwaukee photometers:

When specific reagents are added, the water sample takes on a degree of coloration that is proportional to the concentration of the parameter being measured. The photometer measures this coloration. When a light beam passes through the coloured sample, energy with a specific wavelength is absorbed by the test substance. The photometer determines the coloration of the sample by measuring the transmission or absorption of light of this wavelength. The photometer then uses a microprocessor to calculate the concentration and displays the result.

The field of application is really wide including agriculture, drinking water analyses, aquariums, swimming pools or fish farms. As a result of this versatility and the affordable price it is undoubtedly worth using these products.

K-9520B Sulfide HR CHEMets® Test Kit (125-1250 ppm) by AquaPhoenix

The K-9520B Sulfide HR CHEMets® Test Kit (125-1250 ppm) comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): HR CHEMets® Refill, Flat Comparator, 25 mL sample cup, sample cup top, 200 uL fixed volume pipet, pipettor tips, sulfide activator solution, and instructions.

Old Part Number: HP107218
New Part Number: H107218VN

Part Number: H1971100PA

Measuring Range: -50 to +205 °C

EFS Stand Adjustable Stand for MiScope MP2 Extended Field by Zarbeco

The MiScope extended field stands are an affordable way to adjust the height on your MiScope Megapixel, lower the magnification and increase the field of view.

When used with the extended field of view MiScope-MP2EF (or MiScope-MP2EF-WUVIR) the EFS stand allows for an adjustable field of view as large as 2.25 inches across at 5x magnification. The EFLstand allows for an adjustable field of view as large as 3.5 inches across at 3.5x magnification.

When used with the MiScope Megapixel 2 the EFSstand and the EFLstand allow for an adjustable field of view as large as one inch across at 12x magnification.

When using the EFSstand at the largest field of view, auxiliary lighting may be required. Our FLLamp below is a low cost solution to add auxiliary lighting when the MiScope Megapixel EF is imaging an object from a distance.

(MiScope Megapixel 2 microscope is not included and must be purchased separately).

When using MiScope MP2EF-WUVIR on a stand, do not use the UV or IR LEDs. Warning: Infrared light is harmful. Do not expose eyes or skin to rays.

Warning: Ultraviolet light is harmful. Do not expose eyes or skin to rays.

Part Number: H197150LM9