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High-Quality Laboratory Instruments for Reliable Research

At MIDSCI™, we offer products designed to meet your lab’s evolving needs. This includes a robust selection of laboratory instruments to support research across the life sciences.

MIDSCI™ offers a comprehensive selection of laboratory instruments designed to keep your research accurate, efficient, and compliant. From pH meters, microscopes, and spectrophotometers to balances, refractometers, and thermal cyclers, our products support workflows in cell culture, microbiology, chromatography, and pharmaceutical development. Every instrument is backed by quality assurance and expert support to help your lab run smoothly.

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The OHAUS High-Performance pH Meter for Standard Lab Applications (30058489) has been discontinued.

A replacement model (AB23PH-F) can be found here.

OHAUS pH Meters
 

ST2100-E

After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in a line of benchtop pH meters. Starter 2100 is the economical choice for applications requiring simple pH measurement.

Applications
pH, oxidation-reduction potential (ORP) measurement

Display
Liquid crystal display (LCD)

Operation
AC adapter (included)

Communication
N/A

Construction
ABS housing, built-in electrode holder

Design Features
Auto buffer recognition, two-point calibration, quick reference guide

 

ST3100-F

Starter 3100 has many smart features that make it as intuitive as it is accurate for standard pH measurement.

Applications
pH, oxidation-reduction potential (ORP) measurement

Display
Backlit liquid crystal display (LCD)

Operation
AC adapter (included)

Communication
RS232 (included)

Construction
ABS housing, standalone electrode holder, replaceable in-use cover

Design Features
99 measurement memory, automatic and manual endpoint functions, automatic and manual temperature compensation, quick reference guide

 

ST5000-F

Starter 5000 provides accurate pH and ORP measurement for high-level experiments and research. Enhanced features, advanced technology, and high performance have been combined to support complex laboratory tasks requiring pH measurement.

Applications
pH, oxidation-reduction potential (ORP) measurement

Display
Backlit liquid crystal display (LCD), touchscreen

Operation
AC adapter (included)

Communication
RS232 and USB (included). GLP/GMP data output with real-time clock.

Construction
ABS housing, standalone electrode holder, replaceable in-use cover

Design Features
3 endpoint modes, continuous measurement mode, up to 9-point calibration, 1,000 measurement memory

 

Specifications

 Item No.

30057495

30058489

30129896

 Model

ST2100-E

ST3100-F

ST5000-F

Measurement Range

-2.00 to 16.00 pH; 
-1999 to 1999 mV; 
0 to 100°C

-2.00 to 16.00 pH;
-1999 to1999 mV; 
-5°C to 110°C

-2.00 to 20.00 pH;
-2000.00 to +2000.00 mV; 
-30 to 130°C

Accuracy

±0.01 pH;  ±1 mV; 
±0.5 °C

±0.01 pH;  ±1 mV; 
±0.5 °C

± 0.03% mV;  ± 0.002 pH; 
± 0.1 °C

Measurement Resolution

0.01 pH;  1 mV; 
0.1 °C

0.01 pH;  1 mV; 
0.1 °C

0.001 pH;  0.01 mV; 
0.1 °C

Display

LCD

LCD with backlight

N/A 

ATC

 N/A

N/A

Yes

Electrode

ST210 (Included)

ST310 (Included)

ST350 (Included)

Accuracy ± (mV)

1 mV

1 mV

0.03 mV

Accuracy ± (Temperature)

0.5 °C

0.5 °C

0.1 °C

Battery Life

Not Applicable

Not Applicable

N/A 

Calibration

2 Point

3 Point

9 Point

Meter Type

 N/A

N/A

pH;  ORP

Dimensions

3.07 in x 8.66 in x 6.89 in
(78 mm x 220 mm x 175 mm)

3.07 in x 8.66 in x 6.89 in
(78 mm x 220 mm x 175 mm)

N/A 

In-use cover

No

Included

Included

Measurement Range (Temperature)

0°C to 100°C

-5°C to 110°C

-30°C to 130°C

Measurement Range

-1,999 mV to 1,999 mV

-1,999 mV to 1,999 mV

 N/A

Net Weight

1.65 lb (0.75 kg)

1.65 lb (0.75 kg)

19.5 oz (550 g)

Parameter

pH / ORP

pH / ORP

pH / ORP

pH accuracy (±)

0.01

0.01

0.002

pH measuring range

-2 to 16

-2 to 16

-2 to 20

pH resolution

0.01

0.01

0.001

Power

AC Adapter (Included)

AC Adapter (Included)

AC Adapter (Included)

Resolution (Voltage)

1 mV

1 mV

N/A 

Temperature Display

 N/A

N/A

Yes

Temperature Compensation

Yes

Yes

Automatic

Temperature Resolution

0.1°C

0.1°C

0.1°C

Temperature Sensor

30 KΩ NTC

30 KΩ NTC

30 KΩ NTC

Working Environment

41°F to 104°F, 80%RH, non-condensing (5°C to 40°C, 80%RH, non-condensing)

41°F to 104°F, 80%RH, non-condensing (5°C to 40°C, 80%RH, non-condensing)

50°F to 104°F, 85%RH, non-condensing (10°C to 40°C, 85%RH, non-condensing)

Protection Rating

 N/A

N/A

IP54
Item#:
ASPHMETEROHAUS


Heathrow Scientific® Lab Dial Thermometers

 

Accurate temperature measurement.

 

Heathrow Scientific® Lab Dial Thermometers are designed for precision and durability in laboratory and industrial applications. Featuring an 8 In. stainless steel stem, a large glass dial face, and a secure attachment clip, this thermometer ensures reliable temperature readings across a wide range of scales.

 

Ideal for food and beverage quality control, general laboratory use, and asphalt/concrete testing, this thermometer combines robust construction with ease of use. Choose from multiple temperature scales to meet your specific requirements.


Main Attributes

  • 8 In. stainless steel stem for durability and accuracy
  • Large glass dial face for easy reading
  • Includes attachment clip for secure placement
  • Available in a wide range of temperature scales

Specifications

Item #Temperature RangeSubdivisionsAccuracyDial Diameter
82110-10 to 110°C1°C±1°F1.75 In.
8212525 to 125°F1°F±1°C1.75 In.
822200 to 220°F2°F±2°F1.75 In.
8255050 to 550°F5°F±5°F1.75 In.
82550DG50 to 550°F / 10 to 290°C2.5°F / 5°C±2.5°F / ±5°C2 In.


Item#:
ASDIALTHERM1752DI


Heathrow Scientific® Serialized Glass Thermometers

 

Heathrow Scientific® Serialized Glass Thermometers are crafted from premium borosilicate glass for exceptional durability and accuracy. Each thermometer features a clear, permanently etched scale and a safety blue fill against a white background, ensuring easy-to-read measurements in any setting.

 

Available in a wide range of temperature ranges, these thermometers are ideal for scientific research, industrial processes, and educational applications.

 

Main Attributes

  • Safety blue fills for enhanced visibility
  • Premium borosilicate glass construction
  • 12-inch length for convenient handling
  • Multiple temperature ranges available
  • Approximate Length 12 In. (80905 and 80910 are 15.375 In.) 

Designed for precision and reliability, these serialized thermometers deliver accurate temperature readings you can trust.
 

Item#:
ASSTERIALIZGLATHE


Heathrow Scientific® Pocket Dial Thermometers

 

Compact and accurate.

 

Heathrow Scientific® Pocket Dial Thermometers are the perfect solution for on-the-go temperature measurement in food and beverage quality control, general laboratory use, and asphalt/concrete testing. Its compact design features a small stem and dial face that fit easily into a shirt pocket or holder, making it convenient for field and lab work.

 

Each thermometer includes a protective stem cover for safe transport and storage. Built with a durable polycarbonate lens, it withstands frequent use and harsh conditions. Available in a wide range of temperature scales to meet diverse application needs.

 

Main Attributes

  • Small stem fits into cover for secure pocket attachment
  • Compact design for portability and ease of use
  • Durable polycarbonate lens for long-lasting performance
  • Includes stem cover for safe transport and storage
  • Wide variety of temperature ranges available 

Specifications
 
Item #Temp. RangeTemp. ResolutionDial DiameterStem LengthStem Cover
81070-40 to 70°C1°C1 In. | 25 mm5 In. | 127 mmYes
81110-10 to 110°C1°C1 In. | 25 mm5 In. | 127 mmYes
8112525 to 125°F1°F1 In. | 25 mm5 In. | 127 mmYes
8155050 to 550°F5°F1 In. | 25 mm5 In. | 127 mmYes
 

Item#:
ASDIALTHERM1INDI


Heathrow Scientific® Hydrometer Cases

 

Durable PVC protection for your hydrometers.

 

Keep your hydrometer safe and secure with Heathrow Scientific® Hydrometer Cases. Crafted from high-quality polyvinyl chloride (PVC), these protective cases are designed to prevent damage during storage or transport. Each case features a foam or felt padded insert, plus a padded bottom and cap for extra cushioning. Ideal for laboratories, breweries, and any environment where hydrometers are used, these cases ensure long-lasting protection and convenience when your hydrometer is not in use.

 

Specifications
 
Item #MaterialStyleLength
66CS-8PVCStandard8.5 In. | 216 mm
66CS-8FPVCShort8.5 In. | 216 mm
66CS-13PVCStandard13.5 In. | 343 mm
66CS-13JPVCWide Body13.5 In. | 343 mm
66CS-16PVCStandard16.5 In. | 420 mm
 

Item#:
ASHYDROMET


Heathrow Scientific® Sodium Chloride Refractometers

 

Accurate NaCl measurement.

 

The Heathrow Scientific® Sodium Chloride Refractometer is engineered for precise NaCl concentration measurements in industrial and laboratory settings. Featuring large, high-contrast display scales, this refractometer ensures easy readability with sharp figures and clear screen shading.

 

Includes automatic temperature error reduction via a tactical rubber grip, which prevents heat transfer from hands. A high-quality optical glass prism mounted in an all-metal housing allows for rapid temperature equilibrium for consistent results. A non-roll stand feature is included for stability on flat surfaces.

 

Each unit includes

  • Zippered vinyl carrying case
  • Plastic transfer pipette
  • Instruction manual
  • 5-year warranty 

Main Attributes

  • Industrial-grade construction for long-lasting performance
  • Large, sharp display scales with excellent contrast
  • High-quality optical glass for accurate readings
  • Non-slip rubber grip to minimize temperature effects
  • Prism encased in a metal housing for quick thermal balance
  • Maximum sample temperature: 90°C (194°F)
  • Backed by a five-year warranty

Ideal for food processing, chemical analysis, and quality control applications.
 

Item#:
ASSODIUREFRAC


Heathrow Scientific® MDX Digital Refractometers

 

The MDX-Series Digital Refractometers deliver compact, durable, and highly accurate performance, making them ideal for both laboratory and field applications. With IP65/67 ratings, these refractometers are built to withstand challenging environments while providing quick, reliable digital readings.

 

Main Attributes

  • Automatic Temperature Compensation (ATC) for precise results
  • Continuous loop average readings for improved accuracy
  • Switchable °C/°F temperature display
  • Large, easy-to-read LCD screen for intuitive operation
  • Simple cleaning with removable prism cover and rubber grip
  • 1-Year Warranty

How It Works

Place 4 to 5 drops of your sample into the well, close the prism cover, and press READ for instant results. Designed for ease of use, fast cleaning, and dependable performance, the MDX-Series is perfect for food and beverage testing, industrial applications, and scientific research.
 

Item#:
ASDIGIREFRACT


Heathrow Scientific® Handheld Brix Refractometers

 

The Heathrow Scientific Handheld Brix Refractometers deliver industrial-grade precision with the largest, easiest-to-read scale available. Featuring sharp figures, screen shading, and high contrast, these refractometers ensure accurate readings, even when used by multiple operators. The optical glass prism is mounted in an all-metal housing, allowing the sample and prism to reach temperature equilibrium quickly for reliable results.

 

Designed for convenience and durability, these refractometers include a non-roll stand to prevent accidental falls and a rubber grip that blocks heat transfer from the hand, reducing temperature errors. Each unit comes with a zippered vinyl carrying case, plastic transfer pipette, and instruction manual, backed by a five-year warranty.

 

Main Attributes

  • Industrial-grade quality for consistent performance
  • Large, high-contrast display scale for easy reading
  • High-quality optical glass prism for accurate measurements
  • Non-roll stand for secure placement on flat surfaces
  • Rubber grip minimizes temperature interference
  • Prism encased in all-metal housing for quick temperature equilibrium
  • Maximum sample temperature: 90°C (194°F)
  • Includes carrying case, pipette, and manual
  • Five-year warranty 

Perfect for food and beverage testing, industrial applications, and laboratory use.
 

Item#:
ASHANBRIXREFRAC


Heathrow Scientific® Honey Refractometers

 

Accurate honey quality testing.

 

Heathrow Scientific® Handheld Honey Refractometers are designed for fast, precise honey analysis. Ideal for beekeepers, honey producers, and quality control labs, this refractometer measures honey moisture content, Brix, and Baume with exceptional accuracy. Featuring Automatic Temperature Compensation (ATC), it ensures reliable readings in varying conditions.

 

Built with high-quality optical glass and a durable, industrial-grade design, this refractometer offers long-lasting performance. Its non-roll stand feature keeps the unit secure on flat surfaces, while the tactical rubber grip minimizes heat transfer from hands, reducing temperature-related errors. The all-metal prism housing allows quick temperature equilibrium for consistent results.

 

Each unit includes

  • Vinyl carrying case
  • Plastic transfer pipette
  • Calibration screwdriver
  • Operation manual 

Main Attributes

  • Large, sharp display scales with high contrast for easy reading
  • Measures honey moisture, Brix, and Baume
  • Automatic Temperature Compensation (ATC)
  • Non-slip rubber grip for stability and accuracy
  • Prism encased in metal housing for fast temperature balance
  • Maximum sample temperature: 90°C (194°F)
  • Backed by a 5-year warranty 

Perfect for professional honey testing and quality assurance.
 

Item#:
ASHONEYREFRAC

Enterprise 350 pH Meter

  • Simultaneous pH and temperature display
  • Storage of up to 32 results
  • Automatic or manual calibration 500 hours battery life
  • Application specific electrodes and consumables

The 350271 is a general purpose portable pH meter offering 1 or 2 point pH calibration and automatic buffer recognition with manual override. It simultaneously displays both the temperature compensated pH readings and the manually set temperature.

Specifications

 350271370271
pH range-2 to 16-2 to 16
pH resolution0.010.01
pH accuracy± 0.02± .02
Automatic buffer recognition4, 7, 9.22, 10 (with manual override)4, 7, 9.22, 10 (with manual override)
CalibrationUser selectable 1 or 2 pointUser selectable 1 or 2 point
mV range-----± 1999 mV (absolute or relative)
mV resolution-----1 mV
mV accuracy-----± 1 mV
Temperature range-----10 to 105°C
Temperature resolution-----0.1°C
Temperature accuracy----± 0.5°C
Manual temperature range0 to 100 ° C0 to 100°C
ConnectorBNCBNC
Power2 AA batteries2 AA batteries
Battery life500 hours (typical)500 hours (typical)
Size (l X w x d)175 x 75 x 35 mm175 x 75 x 35 mm
Weight250 g250 g
Item#:
ASPHMETER2

Jenway pH Meter 3510

The 3510 is a versatile, simple to use pH, mV and temperature meter that is ideal for routine analysis. With up to three decimal place resolution and a choice of up to three calibration points the 3510 provides the user with added flexibility where future demands for enhanced performance may be required. A choice of pH calibration buffers to DIN, JIS and NIST standards can be used for automatic calibration, as well as manually entered buffer values.


Specifications include:

  • Simultaneous readout of pH and temperature
  • pH resolution to 3 decimal places
  • 1, 2 or 3 point calibration
  • Automatic or manual buffer selection
  • Storage of up to 32 results
  • RS232 connection to printer or PC via optional DataWay PC software
  • Warranty: 2 years

3510 pH/mV meter supplied with glass combination pH electrode, electrode stand and holder, ATC probe, BNC shorting plug, pH 4, 7 and 10 buffers and US power supply

Specifications:

Parameter3510
pH range-2.000 to 19.999
pH resolution0.001 / 0.01 / 0.1
pH accuracy± 0.003
CalibrationUser selectable 1, 2 or 3 point
Automatic buffer recognitionJenway (2.00, 4.00, 7.00, 9.20 and 10.00), DIN, NIST, JIS
mV range± 1999.9 mV
mV resolution0.1 / 1 mV
mV accuracy± 0.2 mV
Temperature range-10 to 105°C
Temperature resolution0.1°C
Temperature accuracy± 0.5°C
ATC range0 to 100°C
Alarm points-
GLP-
OutputsAnalogue and RS232
ConnectorBNC
Power9VAC (adaptor included)
Size (L x W x D)210 x 250 x 55 mm / 8.3 x 10 x 2.2 in.
Weight850g / 2 lbs.
Item#:
ASPHMETERGLASS

Accuris SmartReader™ UV-Vis Microplate Reader
 
The Accuris SmartReader™ UV-Vis Microplate Reader (model MR9610) has been designed with ease-of-use and fast results in mind. This instrument brings extensive capabilities to the lab bench and is designed for the busy lab with multiple users. The large touch screen command center is extremely user-friendly and allows for fast set up of new protocols, as well as modifying and running existing protocols.

  • Intuitive, 10-inch color touch screen control panel
  • Accepts both 96 & 384-well plates
  • Monochromator-based system
    • No filters required
    • Wavelength range from 200 to 1000 nm
  • Stand-alone design
    • No PC or special software required
    • USB port for flash drive data transfer


Monochromator technology … no filters needed

The monochromator-based optical system allows for precise selection of wavelengths from 200nm to 1000nm, with no filters required. This range makes the SmartReader UV-Vis™ useful not only for typical ELISA , Bradford Lowry, and turbidity assays but also for more advanced applications such as quantitation of nucleic acids and proteins. The SmartReader™ UV-Vis can be set for Endpoint, Kinetic and Spectral Scanning assays.

High Throughput Capability

The MR9610 is designed for efficient processing of multiple samples and
accepts standard 96 well plates as well as 384 well plates for high density
screening. The plate layout interface allows for a quick and intuitive setup of a plate well’s contents. Users can highlight and label multiple wells to save time. The display shows a graphical representation of the plate. Users can label each well as required for: “known standard”, “unknown sample”, “blank well” , “QC Control well”, “positive control”, “negative control”, and “empty”.

Optimized results with plate shaking and incubation

Controllable plate shaking and incubation allow for optimization of assay results. The shaking speed can be controlled at different intensities with options for timed and pulsed shaking before a reading, or in between readings when performing a kinetic assay. The linear motion efficiently and uniformly mixes all samples in both 96 and 384 well plates. Temperature can be controlled from ambient +5C up to 45C, allowing for the processing of enzyme kinetics, and bacterial growth assays.”


SmartDrop™ Accessory Plate

Absorbance measurements of exceptionally small volumes (<0.5ul) can be achieved using the SmartDrop™ Accessory Plate. The SmartDrop™ plate accommodates up to 16 samples and is ideal for checking nucleic acid concentrations and purity for Next Gen Sequencing, or protein concentrations.


 
 SmartReader™ UV-Vis Microplate Reader Specifications

Model

Accuris SmartReader™ UV-Vis

Plates Accepted

96-well and 384-well flat bottom

 Display

10-inch color touch screen

Controls

Touch screen and mouse

Light Source

Xenon Flash Lamp

Wavelength range

 200-1000nm

Wavelength Precision

± 2 nm

Wavelength Accuracy

 ± 2 nm

Wavelength selection

Monochromator

Read-out range

0 – 4.0 OD

Detector

Dual silicon photoelectric detectors for measurement and reference

Linearity  @ 450nm

R2 ≥ 0.999, [0.0 – 3.0]

Accuracy  @ 450nm

1.0% + 0.003 Abs (0 – 2.0]
2.0% (2.0 – 2.5 Abs]

Precision@450nm

CV < 0.5% or SD<0.003 (Precision mode); CV < 1.0% (Fast mode)

Stability@450nm

< 0.005A , (0.0 – 2.0]
< 2%   (2.0 – 2.5 Abs)

Measurement speed

96 well plate:  <6 seconds (fast mode); <25 seconds (precision mode)
384 well plate: <74 seconds (only precision mode available for 384)

Plate shaking

Linear; three levels of shaking speed

Incubator

From ambient + 5°C to 45°C

Temperature Uniformity

± 0.5°C @ 37°C

Storage

16G memory, more than 10,000 test records can be stored

Connection Ports

3 USB ports, for PC, printer and USB-flash drive

Power supply

DC24V  6.5A

Dimensions (WxDxH)

300 x 500 x 260mm | 11.8 x 19.7 x 10.25 inches

Weight

15.5kg | 34 Lbs

Item#:
ASUVVISREAD
 
Accuris SmartReader UV-Vis Product Information
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