N˚	Devices	Technical specifications	Reading techniques			Principle		Benefits	Disadvantages
01	ELISA reader	Wavelength: 400 to 700 nm and 340 to 700 nm for those working in the ultraviolet.	Enzyme Immunoassay			Detection of an antibody or antigen captured on a solid surface using direct or secondary labeled antibody. This results in an enzymatic reaction whose product can be read with a spectrophotometer.		Ø Very sensitive device. Ø Specific device. Ability to perform a large number of tests at the same time.	Ø Relatively higher costs when small numbers of samples are involved. Ø The slightest trace of dirt can bias the results. Ø Longer handling time. The enzymatic reaction makes the technique temperature dependent.
02	MINI VIDAS	Analytical module with 12 test positions/2 independent compartments of 6 tests. Simultaneous processing of different parameters. No inter-reagent or inter-sample contamination. Up to 36 tests per hour.	Immunofluorescence			Based on ELFA (Enzyme Linked Fluorescent Assay) technology. Detection of an antibody or antigen captured on a solid surface using direct or secondary labeled antibody. This results in a fluorescent reaction whose product can be read with a spectrophotometer.		Ø Sturdy and resistant device in spite of the duration. Ø Sensitive and specific device Ability to handle multiple samples at once.	Ø Higher reading time than fast readers. Ø Results very dependent on the temperature of the room. Ø High cost of equipment and cartridges. Boxes not always available in Benin.
03	Architecht i1000sr	Wavelength: 400 to 700 nm Up to 100 tests/hour Up to 50,000 stored results. Equipped with an automatic dilution system. Potential for contamination of the sample needle ≤ 0.1 parts per million. Stability of reagents on board: 14 to 30 days. Ability to detect samples, clots or bubbles. Possibility to control the pressure of the reagents Possibility of measuring the interference of the sample. Equipped with a PC with touch screen, keyboard and mouse. Robotic sample transfer system (RSH).	Chemiflex			Architect i1000sr meets high laboratory standards by providing STAT results with a flexible protocol that improves workflow and allows results to be reported with confidence.		Ø Up to one hundred (100) tests per hour. Ø Used for several types of samples (Serum, Plasma, Whole Blood, Urine). Ø Possibility of automatic dilution. Ø Clot and bubble detection capability. Ø Online help available.	Ø High cost of equipment and reagents.
04	VEDALAB EASY Reader+	Adaptable system: multilingual. Software update via internet. Usable with batteries. Profitability: reasonable price, currently usable on more than 36 parameters…	Immunochromatography		Based on the reflection of light by surfaces and interfaces to measure characteristics such as color intensity and refractive index or some blood parameter concentrations (Reflecto pho tometry). The method is based on the unique combination of colloidal gold-labeled monoclonal antibodies and polyclonal antibodies on solid phase. As the sample migrates on the absorbent paper, the colloidal gold-labeled conjugate binds to the desired element forming anantigen-antibody complex. This complex binds to the solid phase antibodies in the T reaction zone producing a pink band. In the absence of the desired element, no band appears in the T reading zone. The mixture continues its migration along the membrane. The free conjugate is then immobilized in the control zone C to give a pink band indicating that the test has been performed correctly.			Ø Lightweight and easy to carry. Ø Relatively low cost of cassettes. Ø Low influence of temperature on the results.	Ø Longer time to handle a large number of samples. Impossibility to manipulate certain parameters such as toxoplasmosis and rubella.
05	Getein 1100	Data storage: 10,000 data (Max) Advanced fluorescence immunoassay with multiple quality control. One-step test with 3 - 15 min per test, 5 sec/test for multiple tests. RFID card calibration, keyboard and mouse connectivity via USB port, handwritten input now available, continuous testing for 3 hours with a lithium battery.	Immunofluorescence		The biological fluid is transferred to the appropriate test strip (test reagent). This test strip is inserted into the test channel of the Getein 1100 immuno-fluorescent analyzer and after 3 to 15 minutes, depending on the element tested, the test result is displayed on its 8" LCD touch screen.			Ø Fast results with the possibility of handling one or few samples in record time. Ø Low influence of temperature on the results. Ø Lightweight and easy to carry Relatively low cost of playback cassettes.	Ø Longer time to handle a large number of samples. Impossibility to manipulate certain parameters such as toxoplasmosis and rubella.
06	Finecare	Reading between 470 and 525 nm. Good correlation with the CLIA method. Results available in 3 to 15 minutes. Direct connection to LIS/HIS Automatic reading of batch number and calibration information in the identification chip. Sampler specially designed for small specimen volumes	Immunochromatography	The biological fluid is transferred to the appropriate test strip (test reagent). This test strip is inserted into the test channel of the Finecare FIA Meter Plus (FS-113) and after 3 to 15 minutes, depending on the item being tested, the test result is displayed on the 8” LCD touch screen.			Ø Quick results. Ø Ability to handle one or few samples in a short time (3 to 5 minutes per sample). Ø Reliability of results is not dependent on temperature. Ø Lightweight device, therefore easy to carry.		Ø Only one sample to be handled at a time. Ø Inability to manipulate certain parameters such as toxoplasmosis and rubella.