Selectra ProS

Compact fully automated benchtop solution. The Selectra ProS™ benchtop system is the ideal choice for a small or satellite clinical chemistry laboratory seeking a compact fully automated and reliable solution to increase capacity and produce results you can trust.

Together with a broad menu of ready-to-use, liquid-stable reagents, the Selectra ProS provides a fully integrated chemistry solution for smaller laboratories. With random access and a typical throughput of up to 133 tests per hour, the ProS system is the ideal benchtop workhorse for primary, STAT or backup testing needs. Selectra Pro S offers minimal maintenance and effective use of consumables to truly reduce operational costs.

  • Fully-automated clinical chemistry analyzer
  • Typically 133 photometric tests/hour, plus optional dry ISE
  • Broad test menu
  • Best-in-class operator interface
  • Productivity and error reducing capabilities
  • Automated reagent management
  • Annual ProActive Maintenance Kit

Delivering trouble-free results laboratories can trust!

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Processing Center

Single probe streamlines operation

  • Liquid sensor detection
  • Collision protection
  • Precision metering

Optimized test environment ensures accurate results

  • Unique ‘vortex’ mixing
  • Temperature controlled, 37°C

Disposable cuvette rotor with automated onboard wash

  • 10,000 tests / cuvette rotor

Combined reagent and sample rotor with integrated cooling

  • Enables 28 day onboard stability for most reagents
  • 30 reagent positions
  • Ready-to-use, liquid-stable reagents
  • Methodologies referenced to industry standards

Barcoded for easy loading and tracking

  • Bottle barcode loads assay ID, expiration date, lot number, bottle size, test count
  • Test parameters, calibration, and control values also loaded via barcode

Combined reagent and sample rotor with Positive Sample Identification (PSID)

  • Increases productivity and reduces errors
  • Accommodates 25 samples
  • Primary tubes (13 x75 mm) and sample cups

Dry ISE Technology

Patented dry Ion Selective Electrodes (ISE) technology

  • Reduces reagent waste and operating costs
  • Long onboard stability from 3 months – 2 years
  • Longer linear range

Command Center

New best-in-class operator interface with Selectra Touch Pro software

  • Touch screen monitor with next generation software navigation
  • Intuitive color icons guide the operator through daily workflow
  • Rapid access to key operations at a touch

Powerful software capabilities simplify operation

  • Automated sample programming with optional host query LIS interface and PSID
  • Real time tracking to plan and manage on-board inventory
  • 40 configurable result checks enable auto validation
  • Automated programming of assays, calibrators and control values using barcodes
  • Maintenance tasks can be scheduled to run automatically when chemistry analyser is not in use
  • Powerful reporting and back up functionality


  • Up to 133 tests/hou
  • Up to 266 ISE tests/hour

Reagent and Sample System

  • One rotor combining sample and reagent positions
  • Inner rotor ring:
    • 30 refrigerated reagent positions for 10 mL, 25 mL and 50 mL reagent bottles
    • Cooled to 10°C +/- 4°C at normal laboratory conditions
    • All reagent positions can be assigned as R1, R2 and R3.
  • Outer rotor ring:
    • 25 barcode readable positions
    • All positions fit 13×75 mm primary and secondary tubes and pediatric cups
  • All positions can be used for calibrators, controls, normal, pediatric and STAT samples.

Pipetting System

  • R1 volume 110-400 µl
  • 1000 µl reagent syringe:
    • R2 volume 0-180 µl
    • R3 volume 0-180 µl
    • Programmable in 1 µl steps
    • Sample volume 1-30 µl
  • 100 µl sample syringe:
    • Programmable in 0.1 µl steps
  • Programmable dilution ratios 1:5 up to 1:100 in one step increments with 3 possible diluents
  • Pre-heated probe with level detection, collision protection and integrated mixer.

Cuvette Rotor

  • Cost effective, semi-disposable cuvette rotor with 48 cuvettes
  • 10,000 tests per rotor
  • Typical reagent consumption 250 µl per test
  • Measurement temperature 37°C, controlled by Peltier elements.

Light Source

Quartz-iodine lamp 12V-20W.

Wavelength Range

  • Optical unit with 8 position filter wheel
  • 340, 405, 505, 546, 578, 620, 660, 700 nm standard wavelengths
  • Other wavelengths available on request.

Photometric Range

  • 0.1 to 3.0 Absorbance
  • Resolution 0.001 Abs.

Analytical Modes (Single, Dual and Triple reagent system)

  • Kinetic measurement with linearity check
  • Mono- and bichromatic end point measurement with or without bichromatic reagent blank and/or sample blank correction
  • Two point measurement; with or without slope blank
  • Graphic plot of all measuring points
  • Predilution and automatic reflex dilution as needed
  • Non-linear calibration curves
  • Prozone check for immunology tests
  • Cut-off declaration
  • Calculated tests.

Quality Control

  • Up to 15 controls can be defined, 3 per test
  • Westgard or Basic QC rules
  • Levey-Jennings plots
  • Quality control statistics.

Water Consumption

~950 mL per hour when fully operating.

Standards and Regulations

  • CB
  • FDA 510(k) cleared
  • UL (selected versions)


  • 90 x 75 x 60 cm (W x H x D)
  • 36 x 30 x 24 in (W x H x D)
  • Weight: 75 kg (165 lbs).


  • State of the art Host-Query interface available;
  • Host: RS 232 or Ethernet (TCP/IP) through LIS-2A protocol.

Environmental Conditions

  • Temperature: 15 – 32 °C (59 – 90 °F)
  • Humidity: 15 – 85% RH
  • Altitude: up to 2000 m
  • Plumbing: No dedicated water or drain required
  • Electrical:
    • Voltage: 100 – 240 Vac
    • Frequency: 50 – 60 Hz
    • Power (max): 350 VA .

Integrated PC

  • Touch screen navigation
  • Operating system: Windows™ Embedded


Barcode Reader

Hand held CCD barcode reader used for reagent identification and automated programing of assays, controls, and calibrators.

Dry ISE Module

  • Patented Solid State Electrode Technology
  • Indirect Measurement
  • Dilution 1:14
  • Measures Sodium, Potassium, Chloride and CO2.

Positive Sample Identification

Positive Sample Identification (PSID) reads all popular barcodes.


Printer supported by MS Windows™.

ProActive Maintenance Kit

Complete parts kit for annual preventive maintenance.


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