Dölling, R. Marcellini, F. Sapinski, M. JACoW Publishing Geneva, Switzerland 2673-5350 978-3-95450-241-7 10.18429/JACoW-IBIC2022-MOP24 English 92-95 simulation pick-up HOM cyclotron proton Contribution to a conference proceedings 2022 2022-12 https://doi.org/10.18429/JACoW-IBIC2022-MOP24 https://jacow.org/ibic2022/papers/mop24.pdf A new generation of monitor plugs is under develop-ment as spares for the ageing wire profile monitors and beam position monitors inserted into massive shielding in the target regions of the 590 MeV proton beam line at HIPA. A prototype was installed recently in the beam line to the ultra-cold neutron source UCN, to test the perfor-mance of wire monitor, BPM and modular mechanical design in a low-radiation environment. We report on first measurements with beam.