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5-Amino-2,3-dihydro-1, 4-phthalazinedione (luminol) -1g
Medium-5XL
5-Point Breakaway Public Safety Vest (Class 2)5-Point Breakaway Public Safety Vest (Class 2)
5-Point Breakaway Public Safety Vest (Class 2)
SS484P-M

ANSI 207 PSV Breakaway Public Safety Vest with polyester tricot front panel and mesh back panel. One interior open pocket and 4 pen pockets. Adjustable hook & loop front closure. Mic tabs. 2" AwareLite reflective trim.

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From $15.95 Each
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5-Point Breakaway Public Safety Vest (Class 2)(Blue) M/XL5-Point Breakaway Public Safety Vest (Class 2)(Blue) M/XL
5-Point Breakaway Public Safety Vest (Class 2)(Blue) M/XL
SS485P

PSV 207. 5 point breakaway. Expandable. Polyester blue mesh on top, hi-viz lime solid fabric on bottom. Hook & loop front closure. One pen pocket on left front chest. 2 large int. waist pocket with hook & loop closure. Mic tabs.

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$28.50 Each
50 mm Convex Mirror
50 mm Convex Mirror
12001

Unmounted, high-quality silvered glass. Focal length 150 mm.
Unmounted, high-quality silvered glass. Focal length 150 mm.

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$2.20 Each
50 mm Lens Set
50 mm Lens Set
12004

Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.
Unmounted, high-quality optical glass with ground edges. Set includes 6 lenses: 1. Double convex 2. Plano convex 3. Concave/convex 4. Double concave 5. Plano concave 6. Convex/concave.

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$12.95 Set
58" Folding Vented Umbrella58" Folding Vented Umbrella
58" Folding Vented Umbrella
SS404P

Red and White umbrella with automatic opening and 58" Large vented nylon canopy. Umbrella case includes a shoulder strap. Sturdy 2-section hexagonal folding metal shaft. Fiberglass ribs. Gentle foam handle with wrist strap.

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$30.95 Each
58" Folding Vented Umbrella w/ Crossing Guard Emblem58" Folding Vented Umbrella w/ Crossing Guard Emblem
58" Folding Vented Umbrella w/ Crossing Guard Emblem
SS405P

Red and White umbrella with CROSSING GUARD emblem, automatic opening and 58" Large vented nylon canopy. Umbrella case includes a shoulder strap. Sturdy 2-section hexagonal folding metal shaft. Fiberglass ribs. Gentle foam handle with wrist strap.

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$32.95 Each
58-Piece Metric Weight Set
58-Piece Metric Weight Set
16540

Set contains twenty each of 1 g and 5 g, ten 10 g, four 20 g, two 100 g, and one each of 500 g and 1000 g weights. Stackable, color-coded weights come in a plastic storage box. Ages 8-13.

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$29.95 Set
6 Volt Battery
6 Volt Battery
11426

6 Volt battery
6 Volt battery

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$8.95 Each
6" Reflective Cone Collar6" Reflective Cone Collar
6" Reflective Cone Collar
SA536P

For 18" and 28" cones. Reflective high tack adhesive backed cone collars made from tough, durable, and flexible UV stabilized polyester sheeting. Three times brighter than previous cone collars and comply with FHA requirements. Cone not included.

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$7.50 Each
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A-Plus Deluxe Message Board
A-Plus Deluxe Message Board
SS651D

Ready2Use Next Generation Folding, Rolling, Quick Loading, A-frame Sandwich Board Style Sidewalk Sign with changeable message boards. Patented and patent pending features for unmatched user friendliness, portability, and affordability. Displays curved sign panels for maximum visibility and includes Side Support Arms to keep unit from spreading open or closing in high winds. Water filled for stability; can withstand freezing. Just Grip-Tip-Roll to move in or out without lifting/carrying to keep user clean and dry; can be moved folded or open. Resists winds up to 30mph. Displays up to 7 lines of copy on each side.

Includes
2 - /24"x36"x4mm white sign panels with tracks on one side of each board
314-4" letters, numbers, and symbols
22  - 8"numbers
2-9" SALE/Special headers

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$249.00
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A-Plus Message Board
A-Plus Message Board
SS650D

Ready2Use Next Generation Folding, Rolling, Quick Loading, A-frame Sandwich Board Style Sidewalk Sign with changeable message boards. Patented and patent pending features for unmatched user friendliness, portability, and affordability. Displays curved sign panels for maximum visibility and includes Side Support Arms to keep unit from spreading open or closing in high winds. Water filled for stability; can withstand freezing. Just Grip-Tip-Roll to move in or out without lifting/carrying to keep user clean and dry; can be moved folded or open. Resists winds up to 30mph. Displays up to 7 lines of copy on each side.

Includes
2 - /24"x36"x4mm white sign panels with tracks on one side of each board
314-4" letters, numbers, and symbols (Black letters and Red Numbers)

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$239.00
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AC Adapter For Ohaus Scout Scales
AC Adapter For Ohaus Scout Scales
12624

AC Adapter For Ohaus Scout Scales
AC Adapter For Ohaus Scout Scales

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$37.56 Each $46.95 Each
Acme Thunderer Metal Whistle
Acme Thunderer Metal Whistle
GE121P

Acme official's brass whistle. Very durable top quality. 1 3/4" long.

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$11.95 Each
Acme Thunderer Plastic Whistle - Black
Acme Thunderer Plastic Whistle - Black
GE122P

Acme Thunderer Whistle is compressed, molded plastic for great durability.

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$3.95 Each
Acrylic Ball
Acrylic Ball
15896

25 mm diameter
25 mm diameter

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$5.50 Each
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Acrylic Burette - 100ml (835mm Long)
Acrylic Burette - 100ml (835mm Long)
16059

This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.

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$18.36 Each $22.95 Each
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Acrylic Burette - 25ml (570mm Long)
Acrylic Burette - 25ml (570mm Long)
16057

This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.

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$15.16 Each $18.95 Each
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Acrylic Burette - 50ml (735mm Long)
Acrylic Burette - 50ml (735mm Long)
16058

This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.
This burette has a clear acrylic body and leak proof stopcock with a self lubricating PTFE plug. Each burette is individually calibrated for maximum accuracy. Acrylic body is resistant to dilute mineral acids and bases except Hydrofluoric Acid and Ammonium Hydroxide. It can be used with pHs ranging from 1 to 14 and with up to 5% weight per weight of acids or 30% of bases. Graduations are at 0.1 ml.

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$15.96 Each $19.95 Each
Acrylic Cylinder
Acrylic Cylinder
15897

25 mm diameter x 25 mm height.
25 mm diameter x 25 mm height.

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$5.95 Each
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Adam Triple Beam Scale - 2610g Capacity
Adam Triple Beam Scale - 2610g Capacity
16228

Capacity: 2610 Grams Sensitivity: 0.1 Grams Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g Adam's Triple Beam is today's best value for teaching mass measurement concepts from a brand scientists worldwide have trusted for over thirty years. It offers the functions and durability you need in a generous 2610g capacity plus an array of special classroom features that you will appreciate. With a larger overall body than other triple beam balances, it's the sturdiest choice for the classroom. Quality construction with strong metal housing and a stainless steel pan. Innovative built-in tripod legs allow you to do density demonstrations wherever you want (without the inconvenience of having to clamp onto a table.)
Capacity: 2610 Grams. Sensitivity: 0.1 Grams. Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g. Created to withstand daily student use, Adam Equipment's patented TBB triple beam mechanical balance offers a superb value for teaching mass measurement concepts. With rugged construction and security slot to prevent theft, the durable TBB is ideal for classroom environments. Sturdy metal housing and a grade 304 stainless steel pan help the balance withstand daily student use. Other features include tripod legs for density measurement, weigh-below hook, magnetic damping for faster stability, notched and tiered graduated beams with center reading, and holders for storing extra weights.

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$127.20 Each $159.00 Each
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Adam Triple Beam Scale - 2610g Capacity + 225g Tare Capacity
Adam Triple Beam Scale - 2610g Capacity + 225g Tare Capacity
16229

Capacity: 2610 Grams Sensitivity: 0.1 Grams Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g Adam's Triple Beam is today's best value for teaching mass measurement concepts from a brand scientists worldwide have trusted for over thirty years. It offers the functions and durability you need in a generous 2610g capacity plus an array of special classroom features that you will appreciate. With a larger overall body than other triple beam balances, it's the sturdiest choice for the classroom. Quality construction with strong metal housing and a stainless steel pan. Innovative built-in tripod legs allow you to do density demonstrations wherever you want (without the inconvenience of having to clamp onto a table.)

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$126.40 Each $158.00 Each
Adam Triple Beam Scale - 610g Capacity
Adam Triple Beam Scale - 610g Capacity
16346

Capacity: 610 Grams Sensitivity: 0.1 Grams Calibrations: Front Beam - 10g x 0.1g, Center Beam - 500g x 100g, Rear Beam - 100g x 10g Adam's Triple Beam is today's best value for teaching mass measurement concepts from a brand scientists worldwide have trusted for over thirty years. It offers the functions and durability you need in a generous 2610g capacity plus an array of special classroom features that you will appreciate. With a larger overall body than other triple beam balances, it's the sturdiest choice for the classroom. Quality construction with strong metal housing and a stainless steel pan. Innovative built-in tripod legs allow you to do density demonstrations wherever you want (without the inconvenience of having to clamp onto a table.)

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$112.00 Each
Additional Student Charts and Mineral Samples for 12044
Additional Student Charts and Mineral Samples for 12044
12045

Set of 10 additional student charts and mineral samples for use with the What Mineral Is It? classroom project (Item # 12044).

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$41.95 Set