  We present a Scanning Hall Probe Microscope operating in ambient conditions.
One of the unique features of this microscope is the use of the same stepper
motors for both sample positioning as well as scanning, which makes it possible
to have a large scan range (few mm) in x and y directions, with a scan
resolution of 0.1 $\mu$m. Protocols have been implemented to enable scanning at
different heights from the sample surface. The z range is 35 mm.
Microstructured Hall probes of size 1-5 $\mu$m have been developed. A minimum
probe-sample distance \textless{} 2 $\mu$m has been obtained by the combination
of new Hall probes and probe-sample distance regulation using a tuning fork
based force detection technique. The system is also capable of recording local
B(z) profiles. We discuss the application of the microscope for the study of
micro-magnet arrays being developed for applications in micro-systems. *
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