KEYCOM provides solutions in the 300 GHz to 1 μHz frequency range (SHF/EHF/MW/UHF/VHF/ULF).
We undertake designing, manufacturing and measuring. Please feel free to contact us.

Transportable ESR(EPR) measurement system

Model No. ESR04

ESR04 is a very compact, easy-to-handle desktop ESR/EPR (Electron Spin Resonator) system with higher sensitivity than standard X band ESR/EPR (Electron Spin Resonator) system. Adoption of a rare earth permanent magnet realized the miniaturization with a weight of about 27 kg.  An optional automatic liquid transmission unit will allow you to perform mixed measurement and analysis of a solution sample under PC control. ESR04 will also expand the field of ESR applications by leaps and bounds, including process monitoring, desktop ESR sensing by PC on hand and remote control.

Single purpose use – Magnetic field and frequency can be custom designed according to your specific purpose.


Detection sensitivity (standard) at 4mW, 1μM TEMPOL water Solution : S/N≥10
Flat cell use (At 80mW, sensitivity becomes better.)
Microwave frequency (standard) 9.6 GHz
Microwave strength (standard) 1 - 80 mW
Magnetic field strength (standard) 340 mT
Magnetic field sweep width (standard) 15 mT
Control and measuring soft environment For Windows PC, It records the data in CSV form
Device (with power supply) size 28(W)x26(D)x35(H)cm, weight - about 30kg
Power supply (standard) AC 100 V - 240 V, 100 W

Model No.

Name Model No. Specifications
Main body ESR-X10S  
Liquid transportation unit LP-01  
Software SOP-01 Operation software for liquid measurement
SOP-02 Operation software for irradiated food measurement
SSOP-01 Software for ESR analysis
Notebook-sized Windows PC (with printer) PC-01