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Cone Sign Kit - SLOW (yellow)
Cone Sign Kit - SLOW (yellow)
SA796M

This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".

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$54.50 Each
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Ohaus School Balance
Ohaus School Balance
14312

It is the ideal teaching tool to introduce elementary and middle school students to the science of meteorology and has a pivoting beam that provides accuracy to 0.5 gram divisions. The interchangeable red square pans are easily removable for pouring, cleaning, and storage. With a capacity of 2000 grams, mass measurements can be achieved for small items such as paper clips, marbles and coins as well as heavier objects such as books. Pan dimensions: 5.5" (14cm)W x 5.5" (14cm)H
It is the ideal teaching tool to introduce elementary and middle school students to the science of meteorology and has a pivoting beam that provides accuracy to 0.5 gram divisions. The interchangeable red square pans are easily removable for pouring, cleaning, and storage. With a capacity of 2000 grams, mass measurements can be achieved for small items such as paper clips, marbles and coins as well as heavier objects such as books. Pan dimensions: 5.5" (14cm)W x 5.5" (14cm)H

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$56.80 Each $71.00 Each
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pHep 5
pHep 5
16761

Accuracy: ±0.05pH Resolution: 0.01pH The pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing. Supplied with protective cap, electrode removal tool, batteries and instructions.
Accuracy: ±0.05pH Resolution: 0.01pH The pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing. Supplied with protective cap, electrode removal tool, batteries and instructions.

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$88 Each $110.00 Each
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Hooked Weight Set
Hooked Weight Set
14952

These weights feature flat countersunk bottoms, with a double-ended hooked rod through the middle. They can be used on balance pans, as well as hooked in tandem for lever arm studies. Set 9 weights consisting of 1 each 10g, 50g, 500g, 1,000g, and 2 each 20g, 200g weights. Weights are made of polished brass and come in a storage block.
These weights feature flat countersunk bottoms, with a double-ended hooked rod through the middle. They can be used on balance pans, as well as hooked in tandem for lever arm studies. Set 9 weights consisting of 1 each 10g, 50g, 500g, 1,000g, and 2 each 20g, 200g weights. Weights are made of polished brass and come in a storage block.

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$88 Set $110.00 Set
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Distilling Apparatus
Distilling Apparatus
16074

Consist of a 300 mm Leibig Condenser, Kjeldahl Bulb 50mm diameter, 500 ml boiling flask, a cast iron base with support rod, clamp, cast iron tripod, wire gauze and a 500 ml Erlenmeyer flask. Instructions provided.

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$68 Set $85.00 Set
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Dune Compact Scale - DCT 5000
Dune Compact Scale - DCT 5000
16433

Capacity - 5000g Readability - 2g Pan Size - 14.5cm x 14.5cm Weighing Units - g, oz, lb The Dune series offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. It's simple to use with only 3 buttons; on/off, unit, and tare. The positive push button feel provides trouble free operation. Weighing units can be changed quickly and the indicator shows which unit you are using. With a choice of power options you can use either the included AC adapter or 6 x AA batteries. An auto-off function saves battery life and helps reduce power consumption.
Capacity - 5000g Readability - 2g Pan Size - 14.5cm x 14.5cm Weighing Units - g, oz, lb The Dune series offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. It's simple to use with only 3 buttons; on/off, unit, and tare. The positive push button feel provides trouble free operation. Weighing units can be changed quickly and the indicator shows which unit you are using. With a choice of power options you can use either the included AC adapter or 6 x AA batteries. An auto-off function saves battery life and helps reduce power consumption.

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$77.56 Each $96.95 Each
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Dune Compact Scale - DCT 2000
Dune Compact Scale - DCT 2000
16432

Capacity - 2000g Readability - 1g Pan Size - 14.5cm x 14.5cm Weighing Units - g, oz, lb The Dune series offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. It's simple to use with only 3 buttons; on/off, unit, and tare. The positive push button feel provides trouble free operation. Weighing units can be changed quickly and the indicator shows which unit you are using. With a choice of power options you can use either the included AC adapter or 6 x AA batteries. An auto-off function saves battery life and helps reduce power consumption.
Capacity - 2000g Readability - 1g Pan Size - 14.5cm x 14.5cm Weighing Units - g, oz, lb The Dune series offers all of the necessary features for quick and easy weighing. Every Dune is equipped with an AC adapter, auto calibration through the keypad, low battery indicator, and overload indicator. With its alternate battery operation, splash-proof keypad, and sturdy plastic construction throughout, the Dune delivers accurate readings in the lab or in the field. It's simple to use with only 3 buttons; on/off, unit, and tare. The positive push button feel provides trouble free operation. Weighing units can be changed quickly and the indicator shows which unit you are using. With a choice of power options you can use either the included AC adapter or 6 x AA batteries. An auto-off function saves battery life and helps reduce power consumption.

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$77.56 Each $96.95 Each
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Demonstration Scale - 50N Capacity
Demonstration Scale - 50N Capacity
14978

This scale offers a large faceplate for easy viewing. A versatile and inexpensive way to measure a variety of materials in classrooms and laboratories. Sturdy aluminum scales have giant numbers that will be visible from anywhere in the classroom. 8 1/2 inch diameter. 50N capacity, 2N readability
This scale offers a large faceplate for easy viewing. A versatile and inexpensive way to measure a variety of materials in classrooms and laboratories. Sturdy aluminum scales have giant numbers that will be visible from anywhere in the classroom. 8 1/2 inch diameter. 50N capacity, 2N readability

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$68 Each $85.00 Each
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Demonstration Scale - 20hg Capacity
Demonstration Scale - 20hg Capacity
14976

This scale offers a large faceplate for easy viewing. A versatile and inexpensive way to measure a variety of materials in classrooms and laboratories. Sturdy aluminum scales have giant numbers that will be visible from anywhere in the classroom. 8 1/2 inch diameter. 20hg capacity, 0.5hg readability
This scale offers a large faceplate for easy viewing. A versatile and inexpensive way to measure a variety of materials in classrooms and laboratories. Sturdy aluminum scales have giant numbers that will be visible from anywhere in the classroom. 8 1/2 inch diameter. 20hg capacity, 0.5hg readability

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$60.80 Each $76.00 Each
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Chalkboard Drawing Set
Chalkboard Drawing Set
14928

Durable, lightweight plastic instruments, designed for whiteboards/chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic, and accommodates most dry erase and magic markers. Set of 5 instruments, in reusable cardboard storage.

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$71.20 Set $89.00 Set
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Slotted Weight Set
Slotted Weight Set
14951

Set of 10 slotted weights consisting of 1 each 10g, 2 each 20g, 1 each 50g, 5 each 100g and 1 each 500g weights. Weights are made of brass. Set comes with metal rack.
Set of 10 slotted weights consisting of 1 each 10g, 2 each 20g, 1 each 50g, 5 each 100g and 1 each 500g weights. Weights are made of brass. Set comes with metal rack.

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$55.96 Set $69.95 Set
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Magnetic Stirrer
Magnetic Stirrer
13887

All components are rigidly mounted on a molded casing covered with a reinforced colored ABS plastic plate. Minimal vibration and well-balanced rotating arm give years of trouble-free operation. Max stirring capacity 1 liter. Minimum speed: 100rpm. Maximum speed: 800 to 100 rpm. 110/115V, 50/60 Hz power supply. 5.4"diameter x 2" height. Each stirrer comes with 1" long x 3" diameter Teflon coated magnetic stir bar and instruction manual.
All components are rigidly mounted on a molded casing covered with a reinforced colored ABS plastic plate. Minimal vibration and well-balanced rotating arm give years of trouble-free operation. Max stirring capacity 1 liter. Minimum speed: 100rpm. Maximum speed: 800 to 100 rpm. 110/115V, 50/60 Hz power supply. 5.4"diameter x 2" height. Each stirrer comes with 1" long x 3" diameter Teflon coated magnetic stir bar and instruction manual.

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$98 Each $122.50 Each
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Laboratory Jack
Laboratory Jack
14295

Strong, excellent quality laboratory support jack, made of aluminum and stainless steel. Vertical height to 26cm. 15cm x 12cm top and base plates.
Strong, excellent quality laboratory support jack, made of aluminum and stainless steel. Vertical height to 26cm. 15cm x 12cm top and base plates.

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$60.80 Each $76.00 Each
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Hand Driven Centrifuge - for 2 tubes
Hand Driven Centrifuge - for 2 tubes
14541

Single speed. This centrifuge consists of a substantial cast-iron body enclosing a steel pinion and worm drive fitted with a ball-thrust race. It comes with a removable crank handle and one thumb screw clamp to clamp the machine to a table. The head has captive union rings to accommodate 15 ml buckets. The body is baked in a hammertone finish. Complete with plastic buckets and glass centrifuge tubes.
Single speed. This centrifuge consists of a substantial cast-iron body enclosing a steel pinion and worm drive fitted with a ball-thrust race. It comes with a removable crank handle and one thumb screw clamp to clamp the machine to a table. The head has captive union rings to accommodate 15 ml buckets. The body is baked in a hammertone finish. Complete with plastic buckets and glass centrifuge tubes.

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$60 Each $75.00 Each
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Weights for Triple Beam Balance (2000g)
Weights for Triple Beam Balance (2000g)
46892

Hanging metric weights used to extend scale capacity of Ohaus 750-S0 and 750-SW metric triple-beam balances (not included). Cast iron construction has durability and long life. The set of three attachment weights includes two 1,000g weights and one 500g weight.


Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight.


Hanging metric weights used to extend scale capacity of Ohaus 750-S0 and 750-SW metric triple-beam balances (not included). Cast iron construction has durability and long life. The set of three attachment weights includes two 1,000g weights and one 500g weight. Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight.

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$64 Each $80.00 Each
Made in the USA
Cone Sign Kit - PARKING (Left Arrow) (yellow)
Cone Sign Kit - PARKING (Left Arrow) (yellow)
SA778M

This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".

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$54.50 Each