Today we installed one three-axis Bartington magnetometer model Mag-03MC100 close to the WE vacuum chamber. See the attached pictures. Channel names are:

ENV_WE_MAG_N = oriented perpendicular to the W arm, pointing W

ENV_WE_MAG_W = oriented along the W arm, pointing N

ENV_WE_MAG_V = oriented vertically, pointing down

Attached is also a comparison with the WEB Metronix magnetometers.