Instruments

High-Quality Laboratory Instruments for Reliable Research

At MIDSCI, we offer over 40,000 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.

Need More Than Instruments? Shop now and explore our full catalog of chemicals, lab supplies, and equipment, or contact us today for personalized recommendations, assistance, and more. 

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AquaSearcher AB33EC Bench Meter

 

Highly reliable conductivity/TDS/salinity/resistivity benchtop meter for wide conductivity range.

 

The AquaSearcher AB33EC bench meter is designed with reliable measurement and user interface in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The 6.5 In. LCD display and touch keypad make changing the parameters, executing setup, and performing calibration as simple as using a smartphone.

Main Attributes 

  • Applications
    • Conductivity, Total Dissolved Solids (TDS), Salinity, and Resistivity with Temperature Measurements
  • Display
    • 6.5 In. Segment & Dot matrix LCD with backlight
  • Operation
    • Capacitive touch, ABS top housing, standalone electrode holder
  • Communication
    • RS232, USB Device (included)
  • Construction
    • AC adapter (included)
  • Design Features
    • i-Steward, Calibration due alarm, 1,000 measurement memory


Item#:
ASAB33ECAQSRCH


AquaSearcher AB33M1 Bench Meter

 

Easy-to-use and accurate multi-parameter benchtop meter.

 

The AquaSearcher AB33M1 multi-parameter bench meter is designed with reliable measurement and user interface in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The 6.5 In. LCD display and touch keypad make changing the parameters, executing setup, and performing calibration as simple as using a smartphone.

Main Attributes 

  • Applications
    • pH, Oxidation-Reduction Potential (ORP), Conductivity, Total Dissolved Solids (TDS), Salinity, and Resistivity with Temperature Measurements
  • Display
    • 6.5 In. Segment & Dot matrix LCD with backlight
  • Operation
    • Capacitive touch, ABS top housing, standalone electrode holder
  • Communication
    • RS232, USB Device (included)
  • Construction
    • AC adapter (included)
  • Design Features
    • i-Steward, Two Independent Channels, Calibration due alarm, 1,000 measurement memory


Item#:
ASAB33M1AQSRCH


AquaSearcher AB23PH Bench Meter

Designed with a large LCD Display and six instructional menu buttons, AB23PH is a simple pH meter. Auto buffer recognition and 3-point calibration capability ensure a reliable calibration result. Stand-alone holder increases the flexibility for routine experiments, and makes AB23PH a perfect space-saving bench meter for your lab. A 99-item memory for pH measurements ensures efficient data documentation.

Main Attributes 

  • Applications
    • pH, oxidation-reduction potential (ORP) with Temperature Measurements
  • Display
    • 5 inch segment LCD with backlight
  • Operation
    • AC adapter (included)
  • Communication
    • N/A
  • Construction
    • ABS housing, mechanical keys, built-in electrode holder
  • Design Features
    • Auto buffer recognition, two-point calibration, electrode condition icon  

Includes

  • Power Cord
  • AB23PH Benchtop Meter
  • ST322 pH Electrode
  • Stand-Alone Electrode Holder
  • pH Mini Buffer Kit (4 x 50 mL) 

 

Item#:
ASAQUAPHMETER


OHAUS MB92 Moisture Analyzer

 

High performance moisture analysis with advanced features for the most demanding application.


The MB92 features a redesigned housing, innovative carbon fiber heating, and upgraded load cell for enhanced durability and performance. Ideal for users demanding a higher level of performance on both the laboratory and production floor, offering greater data security and integrity with password protection.

Main Attributes 

  • Applications
    • Percent Moisture Determination, Percent Moisture Regain Determination, Percent Solid Determination, Weighing
  • Display
    • 4.3 In. capacitive touch screen
  • Operation
    • Internal power supply with power cord (included)
  • Communication
    • RS232, USB device, USB host
  • Construction
    • Carbon fiber heat source, PBT housing, die casting aluminum base, metal pan support, metal pan handler, in use cover
  • Design Features
    • Eight shut-off criteria (manual, timed, A10, A30, A60, A90, A160, free mg/s), four drying profiles (standard, fast, ramp, step), storage up to 20 methods and 200 results for all methods, 40 to 200ºC heating range, multiple operational languages 


Item#:
ASMB92MA


OHAUS Starter Portable pH Meter

 

After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a portable pH meter. This portable meter offers convenience, reliability and durability in one compact design.
 

Main Attributes

  • Applications
    • pH, oxidation-reduction potential (ORP) measurement
  • Display
    • Liquid crystal display (LCD)
  • Operation
    • 4 AAA batteries (included)
  • Communication
    • N/A
  • Construction
    • ABS housing, wrist strap
  • Design Features
    • Automatic and manual temperature compensation, auto buffer recognition, calibration icon

Ordering Information
 
830339618303396230219114
ST300-B, ST322 3-in-1 Plastic Gel pH Electrode,
and pH Buffer Powder Sachet
300 Meter with IP54 Sets, Electrode Clip, Wrist Strap and 4 AAA Batteries
(Electrode Not Included)
ST300-B, ST322 3-in-1 Plastic Gel pH Electrode, pH Buffer Powder Sachet
(4.01, 7.00, 10.01),
Portable Bag
 

Item#:
AS300PHMETER


OHAUS MB120 Moisture Analyzer

 

Faster, smarter, more efficient moisture analysis.

 

Accurate determination of the moisture content of samples is important. Equipped to handle routine and sophisticated measurements, our flagship moisture analyzer MB120 makes the whole process faster, easier, and more efficient. The MB120 allows you to analyze more samples, access saved data, and spend less time prepping and more time putting your results to work.
 

Main Attributes

  • Applications
    • Percent Moisture Determination, Percent Moisture Regain Determination, Percent Solid Determination, Weighing
  • Display
    • 4.3 In. TFT color touchscreen display
  • Operation
    • Power cord (included)
  • Communication
    • RS232 with GLP/GMP data output, USB Host and USB Device (included)
  • Construction
    • Metal base, ABS top housing, halogen heat source, stainless steel pan support, stainless steel pan handler, in-use cover
  • Design Features
    • Seven shut-off criteria (manual, timed, autofree %/s, autofree mg/s, A30, A60 and A90), four drying profiles (standard, fast, ramp and step), storage up to 100 methods and 1000 test results for all methods, user guide, 40°C to 230°C heating temperature range (1°C increments), 14 operational languages   


Item#:
ASMB120MA


OHAUS Starter Portable Waterproof pH Meters

 

Durable, Waterproof, Battery-Operated, pH Meters Ideal for Field Testing.

 

Starter 400 Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which makes them ideal for prolonged use in wet environments. Includes a rubber protective case fit for field testing. A rechargeable lithium battery ensures hours of trouble-free testing in the field. Intuitive software and an easy-to-view LCD allow for simple operation. A built-in USB port enables easy data transfer.
 

Main Attributes

  • Applications
    • pH, Oxidation-Reduction Potential (ORP) measurement
  • Display
    • Backlit Liquid Crystal Display (LCD)
  • Operation
    • Rechargeable lithium battery
  • Communication
    • Built-in micro-USB port
  • Construction
    • IP67 waterproof plastic housing, IP67 probes, rubber cover
  • Design Features
    • Data storage of up to 1000 items

Ordering Information
 
304689643046896530468966
400 Meter with IP67 Rubber Housing, Electrode Clip, Wrist Strap and 4 AAA Batteries
(Probes Not Included)
ST400-B with
ST320 IP67 3m Probe
ST400-F
with Portable Bag



Item#:
AS400PHMETER


OHAUS MB32 Moisture Analyzer

 

Perfect for routine moisture testing.

 

MB32 features a redesigned housing with stronger material, innovative carbon fiber heating technology, and an upgraded load cell for enhanced durability and performance.

Main Attributes 

  • Applications
    • Percent Moisture Determination, Percent Moisture Regain Determination, Percent Solid Determination, Weighing
  • Display
    • 4 In. LCD with 2nd line display
  • Operation
    • Internal power supply with power cord (included)
  • Communication
    • RS232, USB device
  • Construction
    • Carbon fiber heat source, PBT housing, die-casting aluminum base, metal pan support, metal pan handler, in-use cover
  • Design Features
    • Five shut-off criteria (manual, timed, Auto, A30, A90), two drying profiles (standard and fast), storage up to two methods, 40 to 180ºC heating range, multiple operational languages


Item#:
ASMB32MA


OHAUS MB23 Moisture Analyzer

 

Outstanding performance, flexible configuration, and reliable results.


The MB23 provides precise moisture content determination at an unbeatable value. With a large backlit LCD display, standard RS232 port, 110 g capacity with a readability of 0.01 g / 0.1%, and a non-glass infrared heating element, the MB23 offers moisture analysis for any budget.

 

Main Attributes 

  • Applications
    • Percent Moisture Determination, Percent Solid Determination, Weighing
  • Display
    • Backlit liquid crystal display (LCD)
  • Operation
    • Power cord (included)
  • Communication
    • RS232 (included)
  • Construction
    • Infrared heat source, ABS housing, metal pan support, metal pan handler, in-use cover
  • Design Features
    • 3 shut off criteria (manual, timed, or auto), 1 standard heating profile, 50°C to 160ºC heating range (5°C increments) 


Item#:
ASMB23MA


OHAUS MB62 Moisture Analyzer

 

Designed for durability and flexible performance in a variety of moisture applications.


MB62 features a redesigned housing, innovative carbon fiber heating, and upgraded load cell for enhanced durability and performance. With flexibility in method creation, settings, and data access, MB62 is suitable for a variety of moisture applications in numerous industries.

 

Main Attibutes 

  • Applications
    • Percent Moisture Determination, Percent Moisture Regain Determination, Percent Solid Determination, Weighing
  • Display
    • 5 In. LCD with 2nd line display
  • Operation
    • Internal power supply with power cord (included)
  • Communication
    • RS232, USB device
  • Construction
    • Carbon fiber heat source, PBT housing, die-casting aluminum base, metal pan support, metal pan handler, in-use cover
  • Design Features
    • Seven shut-off criteria (manual, timed, A10, A30, A60, A90, A160), four drying profiles (standard, fast, ramp, step), storage up to 20 methods and 100 results for all methods, 10 sample ID, 40 to 200ºC heating range, multiple operational languages

 

Item#:
ASMB62MA


OHAUS Starter Portable Multi-Parameter pH Meters

 

Durable, Waterproof Battery-Operated Multi-Parameter Meters Ideal for Field Testing.

 

Starter 400M Multi Parameter Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which are ideal for testing pH, conductivity, TDS, salinity and resistivity in wet environments. A rechargeable lithium battery ensures hours of trouble-free testing in the field. Intuitive software and an easy-to-view LCD allow for simple operation. A built-in USB port enables easy data transfer.
 

Main Attributes

  • Applications
    • pH, Conductivity, TDS, Salinity and Resistivity Testing
  • Display
    • Backlit Liquid Crystal Display (LCD)
  • Operation
    • Rechargeable lithium battery
  • Communication
    • Built-in micro-USB port
  • Construction
    • IP67 waterproof plastic housing, IP67 probes, rubber cover
  • Design Features
    • Data storage of up to 1000 items 

Ordering Information
 
304689903046899130468992
400M Meter with IP67 Rubber Housing, Electrode Clip, Wrist Strap and 4 AAA Batteries
(Probes Not Included)
ST400M-B with
ST320 IP67 3m and
STCON3 IP67 3m probes
ST400M-F
with
Portable Bag
 

Item#:
AS400MPHMETER


Heathrow Scientific® IRS Alcohol Hydrometers with NIST Certificate

 

Certified accuracy for distilleries.

 

Ensure compliance and precision with Heathrow Scientific® IRS Alcohol Hydrometers, Three-Point Certified to IRS standards for proof and tolerances, and fully traceable to NIST. These certified hydrometers are essential for distilleries and laboratories that require official calibration for alcohol content verification.

 

Each certified hydrometer package includes:

  • Alcohol Hydrometer – Calibrated for accurate proof measurement
  • Certificate of Calibration – Traceable to NIST for regulatory compliance
  • Protective Case – For safe storage and transport

Certification Details:

  • Ordered with the hydrometer
  • Requires 10–15 business days for delivery

Perfect for distilleries, quality control labs, and any application requiring certified alcohol measurement.
 

Item#:
ASIRSALCHHYDRONST
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