MASTECH MS8250B

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MASTECH MS8250B
Mastech ms8250b mugshot.png
Status supported
Source code serial-dmm
Counts 4000
IEC 61010-1 CAT IV (600V)
Connectivity USB-to-serial
Measurements voltage, current, resistance, capacitance, diode, continuity, frequency
Features autorange, data hold, backlight, relative
Website p-mastech.com

The MASTECH MS8250B is a 4000 counts, CAT IV (600V) handheld digital multimeter with USB connectivity.

Hardware

  • Main chip: Fortune Semiconductor FS9721-LP3 (guessed from protocol)

Photos

Protocol

The protocol is the same as the one used in the Fortune Semiconductor FS9721 chip (likely because that chip is used in the DMM).

See Multimeter_ICs#Fortune_Semiconductor_FS9721_LP3 for the DMM IC protocol.

Resources