10.1.2017: New invoicing and delivery adress
Firm has moved to new place of business since New year. Now we can offer better service for our customers thanks to better dispositions of building. Billing and invoicing address has changed too.

22.2.2013: New product - MPH81
After two years of development we finished work on our new product - cobined conductometer, pH/mV ion meter, with possibility of external temperature sensor connection. Instrument was developed as highly portable, what means that it has very low power consumption and possibility of battery operation. In addition, it has a USB connection, so it is possible to connect it to a PC. Communication protocol is very similar to MPH71 one, what means that you can use already existing applacations for MPH71.

22.6.2011: New product - MPH71
We would like to inform you about our new product - MPH71 - Advanced potentiometric converter. It is suitable for all our electrodes. These type integrates mV-meter, ionmeter and pH meter with temperature compensation. It also enables communication with PC or PLC via RS232 and current loop. Both outputs are galvanically isolated from measuring part to prevent influence of connected devices.

28.2.2011: New type of pH electrode in pricelist
For big interest from our customers we decided to add new pH electrode to pricelist - 01-29LR. This electrode is especially suitable for measurement in low temperatures (it has low electrical resistance). This is important because resistivity of each pH electrode is strongly dependent on temperature. If the electrode has resistance 100 Mohm at laboratory temperature, at zero it will be about 800Mohm. If there is longer cable needed (more than one meter), the measurement will be noisy and report bad values because of nonlinearity of input.

40 years of producing ise in our firm

 1.10.2008: 40 years of ISE
This year is 40th anniversary from beginning of the production of ion selective electrodes in our firm Monokrystaly. First notice about development of ISE in our firm was presented on meeting in Hungary in 1968 year (Veselý J., Jindra J.: IMEKO – Symposium on electrochemical sensors, p. 69, 1968, Veszprem, Hungary). First production of ion selective electrodes with plastic membrane in our firm was started in 1974 year (Semler M., Adametzová H.: J. Electroanal. Chem. Interfac. Electrochem., vol. 56, p. 155, 1974). First electrodes with membrane with mixed innorganic compounds were produced in 1977 year (Semler M., Mánek B.: Conference on ion selective electrodes, p. 529, 1977 Budapest, Hungary). Test of the first our electrodes carried out by Šůcha, Suchánek, Urner and coworkers from Institute of chemical technology in Prague, by Kotrlý, Vytřas and coworkers from University of Pardubice and by Šenkýř and coworkers from Masaryk University, Brno. Today our firm produce 20 types of ion selective electrodes, including gas sensing electrodes, many types of pH glass electrodes, redox electrodes, reference electrodes and pH-meters.

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Monokrystaly, s.r.o, Přepeře 297, 512 61 Přepeře, Czech republic
Tel: +420 481 325 857, Tel/Fax: +420 481 313 200, Mobile: +420 775 325 857