Brymen BM257

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**Brymen BM257**

Status	supported
Source code	serial-dmm
Counts	6000
IEC 61010-1	CAT II (1000V) / CAT III (600V) / CAT IV (300V)
Connectivity	RS232, USB/serial
Measurements	voltage, current, resistance, continuity, diode, capacitance, temperature
Features	autorange, data hold, min/max, backlight
Website	brymen.com

The Brymen BM257 is a 6000 counts CAT II (1000V) / CAT III (600V) / CAT IV (300V) handheld digital multimeter with USB connectivity.

Hardware

Multimeter:

...

Cable:

See Device_cables#Brymen_BRUA-20X.

Photos

Multimeter:

Holster removed
Back
Opened, PCB back
PCB back top
PCB sandwich
PCB sandwich, other side
Probes
BM-20X connectivity kit

Cable:

See Device_cables#Brymen_BRUA-20X.

Protocol

The protocol is described by Brymen in the document BM250-BM250s-6000-count-digital-multimeters-r1.pdf, available from the manufacturer.

Resources

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