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Test Tube Rack
Blue plastic test tube rack, about 8" long x 2-1/2" wide x 3-1/4" tall OA. It has a plate with (6) holes for full test tubes, the end two being 1-1/16" dia the others 3/4" dia. In front of this are (6) pegs to hold clean inverted test tubes. It of course can be used to hold tools, drying pasta or other, non-lab objects.
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89323 TEST TUBE RACK |
Metric Triple Beam Balance
Easy to use, and with 0.1 gram sensitivity the O'haus triple beam balance is perfect for measuring chemicals, biological specimens or the rutabaga for tonight's supper. Parallax free, the balance is damped by a pair of alnico magnets in the end post for friction free use. The three notched and tiered beams (100-500 grams, 10-100 grams, 0-10 grams) have center reading sliding poises. 610 gram capacity (standard) can be increased to 2610 grams by the use of attachment weights, available as an accessory. (Accessory weight kit includes (1)-500 gram and (2)-1000 gram weights.) Base is contoured to store weights and the balance is equipped to accept specific gravity Rod and Clamp. Stainless steel 6" dia. platform. 18" x 6" x 6".
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41766 ACCESSORY WEIGHT KIT | |
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71695 BALANCE, TRIPLE BEAM |
Plastic Graduates
The Graduate devotee knows the importance of plastic. To fill the need we offer these fine cylinders of the hard milky white polypropylene persuasion, to help you measure out your chemicals. With a large bases for stability and spouts for pouring, they are just like their glass cousins, except these are cheaper and not heat-resistant (each is marked 20° C ?!). The graduation increments and total volume are shown as increment/total in milliliters.
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91175 PLAS. GRAD., 0.2/10ML | |
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91176 PLAS. GRAD., 1/50ML | |
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91177 PLAS. GRAD., 2/250ML | |
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91178 PLAS.GRAD., 10/1000ML |
Scope Your Stethos!!
Stethos is Greek for chest. Indeed you can scope your stethos with this stethoscope, or your friend's or your dog's. But it works equally well for picking up any sound being transmitted through a solid medium. Listen to the air flowing through the heating ducts, the water in the pipes, the sounds of machinery, the termites munching on the floor joists!! The color does vary so we will select from what's currently available. We've had blue, teal, red, black, burgandy, green and purple, but there may be other colors yet to be seen! A great discovery device whether for biology or other pursuits. Not of professional quality, but not just a toy.
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11077 STETHOSCOPE |
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The Paragon
...is an inspection and dissection binocular microscope. The manufacturer says it's "perfect for industrial, agricultural, biological and educational uses." We heartily concur, which is why we're stocking this shiny new non-surplus item. "The Paragon" is 15" high, sturdy, easy to use, and has an acid and reagent resistant finish. At 10X and 30X magnification it's not for the weensiest microbes, of course, but if your work is on the scale of distinguishing weevil species, this is what you want. The 95mm dia stage plate reverses white to black for contrast, and the rack and pinion pole mount lets you view samples up to 17 cm in height. The binocular head is inclined for comfortable viewing, rotates 360°, Wide field 10X eyepieces adjust to 55 -75mm interpupillary distance. 1X and 3X objectives are turret-mounted. With the 1X objective, you get a 19mm field of view, with the 3X, a 9.5mm field. In either case the working distance is 95mm. Don't do entomology without it.
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90313 DISSECTING 'SCOPE |
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Brass Mass Set
This (10) piece set of weights are brass cylinders topped with knobs. The weights are stamped on the top. There are (2) each of 1, 2, 5 and 10 grams, plus (1) 20 and (1) 50 gram weight. If you don't want to display them, they can be stored in their molded plastic holder. Our each is the full set.
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90070 BRASS WEIGHTS |
3X-50X Microscope
If you're looking for a good microscope with crisp stereoscopic images, but can't afford any frills, this is the one you want. The 3X-50X microscope comes with 0.3X, 0.5X, 1.0X, 2.0X and 3.3X objectives, and binocular eyepieces in 14x and 8x wide field and an 8X measuring eyepiece, all with high quality achromatic lenses. It has 56-72 mm interpupilary adjustment, +5 dioptric focusing on the left eyepiece, (1) scale reticle and (1) grid reticle. When your ship comes in and you can afford a few frills, consider our item #14388, a C-mount adapter that holds most video cameras. Two-year manufacturer's warranty.
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92069 STEREO MICROSCOPE |
Convertible Stethoscope
What a price for a Sprague Rappaport stethoscope! And the improved model, at that! The 30" long stethoscope can be easily configured for (5) different functions, replacing other styles. It comes with (1) large and (1) small diaphragm, (3) different sizes of bell-type chestpieces, (3) sizes of eartips, and instructions for use. The interchangeable parts are in a compact, clear-plastic carrying case that fits into a pocket. Tubing will be assorted neon colors (our choice).
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92083 S/R STETHOSCOPE |
Plastic Beakers
Hard polypropylene beakers, milky white with a fine pouring spout. No good for flames, but great for low-temp lab applications. Also useful in the kitchen, the garage, or (the big one especially) as a plant watering can.
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91182 PLASTIC BEAKER, 1000ML | |
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91180 PLASTIC BEAKER, 100ML | |
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91181 PLASTIC BEAKER, 250 ML |
What's a Newton?
Even if you don't care a fig, we should tell you that these little hand-held or hangable spring scales are marked in gram and Newton increments. Ours measures up to 100 grams or 1 Newton in 1g or .01 Newton increments. All are plastic and metal, approx 6" long OA.
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92763 100 G SCALE | |
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92764 1000 G SCALE |
Measuring pH
This handheld pH meter from Hanna Instruments measures 0-14 pH to 0.01 resolution, accurate to +/- 0.2. Calibration screw for 7.01, and another for 4.01 or 10.01 pH. The unit is 6-3/4" X 2" X 15/16" OA, with a 4-digit 1-1/8" X 1/2" LCD readout, and a replaceable 4-1/8" long x 9mm dia probe that screws into the case. Comes with a tip cover for the probe and (2) button-cell batteries. Don't forget to order the 20mL foil packs of pH 7.01 Buffer Solution, with a chart listing the specific pH of the solution at various temperatures. Made for laboratory or industrial use only, it has a tolerance of +/-0.01 pH at 77°F. Also from Hanna Instruments.
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93009 BUFFER SOLUTION | |
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92999 PH METER |
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