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48 Products

Calibration Solutions for Chemistry Sensors

20 mL

500 mL

1 Gal.

Maintain the accuracy of chemistry sensors.

20 ml
For Calibrating	Concentration Range		Pkg.
Chlorine	1 ppm	000000000	000000
			Each
500 ml
Salinity	0.3 g/L	000000000	00000
Salinity	3.0 g/L	000000000	00000
pH	4.0 pH	000000000	00000
pH	7.0 pH	000000000	00000
pH	10.0 pH	000000000	00000
Conductivity, Total Dissolved Solids (TDS)	84 µS, 40.38 ppm	000000000	00000
Conductivity, Total Dissolved Solids (TDS)	1,413 µS, 745 ppm	000000000	00000
Conductivity, Total Dissolved Solids (TDS)	2,764 µS, 1,382 ppm	000000000	00000
Conductivity, Total Dissolved Solids (TDS)	12,880 µS, 7,447 ppm	000000000	00000
Oxidation Reduction Potential (ORP)	240 mV	000000000	00000
1 gal.
pH	4.0 pH	000000000	00000
pH	7.0 pH	000000000	00000
pH	10.0 pH	000000000	00000
Conductivity	1,413 µS	000000000	00000
Conductivity	12,880 µS	000000000	000000

Calibration Solutions for Chemistry Sensors with Analysis Certificate

500 mL

1 Gal.

Ensure accurate calibration results with these solutions that come with an analysis certificate traceable to NIST that states they’ve passed a test for concentration.

500 ml
For Calibrating	Concentration Range		Each
pH	4.0 pH	0000000	000000
pH	7.0 pH	0000000	00000
pH	10.0 pH	0000000	00000
Conductivity	84 µS	0000000	00000
Conductivity	1,413 µS	0000000	00000
Conductivity	12,880 µS	0000000	00000
Total Dissolved Solids (TDS)	1,382 ppm	0000000	00000
1 gal.
pH	4.0 pH	0000000	00000
pH	7.0 pH	0000000	00000
pH	10.0 pH	0000000	00000

Burettes

More precise than pipettes, burettes have a stopcock that allows you to release liquids in tiny drops. They’re often used when the volume of liquid that needs to be dispensed is unknown, such as in titration.

Fill Style A burettes by pouring your sample in the connected reservoir bottle and screwing the cap back on to secure. To transfer your sample to the burette, squeeze the sides of the bottle to feed the sample through the reservoir tube. Release the sides of the bottle when the burette reaches the capacity you want.

	Capacity, ml	Capacity Tolerance, ml	Graduation Marks	Reservoir Capacity, ml	Base Dia.	Ht.	Burette Material	Burette Color	Reservoir Material	Reservoir Color	Seal Material	Spout Material		Each
A	10	-0.03 to +0.03	0.05 ml	500	4 5/8"	22"	Borosilicate Glass	Clear	Polyethylene Plastic	Semi-Clear White	Latex Rubber	Polypropylene Plastic	000000	0000000
A	25	-0.05 to +0.05	0.1 ml	1,000	5 3/8"	25 1/2"	Borosilicate Glass	Clear	Polyethylene Plastic	Semi-Clear White	Latex Rubber	Polypropylene Plastic	000000	000000
A	50	-0.08 to +0.08	0.1 ml	1,000	5 3/8"	36 1/4"	Borosilicate Glass	Clear	Polyethylene Plastic	Semi-Clear White	Latex Rubber	Polypropylene Plastic	000000	000000

Burettes with Digital Readout

Reduce errors and increase accuracy--these burettes have a digital readout, so you don't have to calculate how much liquid you've dispensed. Often used when you aren't sure how much liquid you need to dispense, such as in titration, these burettes release liquid drop by drop. Turn the precision knobs on the side to lower the plunger and dispense your liquid. To draw liquid in, turn the knobs in the opposite direction. The burette detects your turn direction, so it only displays the volume you’ve dispensed, not the volume you’ve drawn in. You can adjust the titrating tube vertically and horizontally to fit different bottle sizes or if you need to make room for an additional instrument, such as a magnetic stirrer. Easily take them apart to clean, change inspection windows, and replace batteries.

They come with both clear and amber inspection windows. Use the amber window to protect UV-sensitive liquids. To fit on some of the most common laboratory bottles, they also come with thread adapters.

Burettes with an RS-232 communication protocol can transmit data to your PC with the included USB cable.

Burettes
Capacity, ml	Capacity Tolerance, ml	Droplet Size	For Bottle Thread Size	Intake Tube Lg., mm	Ht.	Burette Material	Burette Color	Spout Material	Batteries Included	Features	Includes		Each
10	-0.01 to 0.01	20 µL	GL-45	170 to 330	9 3/4"	Borosilicate Glass	Clear	PTFE Plastic	Yes	Adjustment Knob, Adjustable Titrating Tube	Two Clear Inspection Windows, Two Amber-Colored Inspection Windows, GL-32 Thread Adapter, S-40 Thread Adapter, NS-29/32 Thread Adapter, Power Cord	0000000	000000000
25	-0.02 to 0.02	20 µL	GL-45	170 to 330	9 3/4"	Borosilicate Glass	Clear	PTFE Plastic	Yes	Adjustment Knob, Adjustable Titrating Tube	Two Clear Inspection Windows, Two Amber-Colored Inspection Windows, GL-32 Thread Adapter, S-40 Thread Adapter, NS-29/32 Thread Adapter, Power Cord	0000000	00000000
50	-0.03 to 0.03	20 µL	GL-45	170 to 330	9 3/4"	Borosilicate Glass	Clear	PTFE Plastic	Yes	Adjustment Knob, Adjustable Titrating Tube	Two Clear Inspection Windows, Two Amber-Colored Inspection Windows, GL-32 Thread Adapter, S-40 Thread Adapter, NS-29/32 Thread Adapter, Power Cord	0000000	00000000
Burettes with RS-232 Communication Protocol
10	-0.01 to 0.01	20 µL	GL-45	170 to 330	9 3/4"	Borosilicate Glass	Clear	PTFE Plastic	Yes	Adjustment Knob, Adjustable Titrating Tube	Two Clear Inspection Windows, Two Amber-Colored Inspection Windows, GL-32 Thread Adapter, S-40 Thread Adapter, NS-29/32 Thread Adapter, Power Cord	0000000	00000000
25	-0.02 to 0.02	20 µL	GL-45	170 to 330	9 3/4"	Borosilicate Glass	Clear	PTFE Plastic	Yes	Adjustment Knob, Adjustable Titrating Tube	Two Clear Inspection Windows, Two Amber-Colored Inspection Windows, GL-32 Thread Adapter, S-40 Thread Adapter, NS-29/32 Thread Adapter, Power Cord	0000000	00000000
50	-0.03 to 0.03	20 µL	GL-45	170 to 330	9 3/4"	Borosilicate Glass	Clear	PTFE Plastic	Yes	Adjustment Knob, Adjustable Titrating Tube	Two Clear Inspection Windows, Two Amber-Colored Inspection Windows, GL-32 Thread Adapter, S-40 Thread Adapter, NS-29/32 Thread Adapter, Power Cord	0000000	00000000

Electronic Multi-Channel Adjustable-Volume Pipettors

8 Channels

12 Channels

Transfer eight or more equal samples at once with the push of a button. Compared to manual pipettors, these pipettors dispense using a motor to improve accuracy and reduce fatigue. With an adjustable finger rest and a shape that fits easily in your hand, they’re designed to keep your hand from getting tired. They use air displacement to draw in and push out samples in precise amounts. They’re often used to fill every well on a well plate and for other repeat tasks.

Use the buttons and LCD display to adjust the dispensing volume and select from a variety of functions. You can set these pipettors to mix samples, handle thick and foamy samples, and change speed to slowly dispense gels. When you’re done, tap the ejector button to discard the tip without having to touch it.

Use with universal-fit pipette tips.

Pipettors
Capacity									Replacement Batteries
µL	ml	Overall Lg.	Body Material	Batteries Included	Includes	Autoclavable		Each		Each
8 Channels
0.5 to 10	0.0005 to 0.01	10 1/2"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	0000000	0000000	000000
1 to 20	0.001 to 0.02	10 1/2"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	000000	0000000	00000
5 to 100	0.005 to 0.1	10 1/4"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	000000	0000000	00000
10 to 200	0.01 to 0.2	10 1/4"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	000000	0000000	00000
15 to 300	0.015 to 0.3	10 1/4"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	000000	0000000	00000
50 to 1,250	0.05 to 1.25	10 5/8"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	000000	0000000	00000
12 Channels
0.5 to 10	0.0005 to 0.01	10 1/2"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	00000000	0000000	00000
1 to 20	0.001 to 0.02	10 1/2"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	00000000	0000000	00000
5 to 100	0.005 to 0.1	10 1/2"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	00000000	0000000	00000
10 to 200	0.01 to 0.2	10 3/8"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	00000000	0000000	00000
15 to 300	0.015 to 0.3	10 1/4"	Polypropylene Plastic	Yes	96 Pipette Tips, Power Cord, Reagent Reservoir, Stand	Yes	0000000	00000000	0000000	00000
50 to 1,250	0.05 to 1.25	10 5/8"	Polypropylene Plastic	Yes	192 Pipette Tips, Power Cord, Reagent Reservoir, Shelf-Mounting Bracket	Yes	0000000	00000000	0000000	00000