Victron Enery BMV 702 Monitor 2 Batteries 6,5-95 VDC with cables and shunt. Black colour.
The essential function of a battery monitor is to calculate ampere hours consumed and the state of charge of a battery. Ampere hours consumed are calculated by integrating the current flowing in or out of the battery.

BMV-702 additional features: Additional input to measure voltage (of a second battery), temperature or midpoint voltage, and corresponding alarm and relay settings.

Specifications:
Supply voltage range 6,5 - 95 VDC
Current draw, back light off < 4mA
Input voltage range, auxiliary battery 6,5 - 95 VDC
Battery capacity (Ah) 1 - 9999 Ah
Operating temperature range -40 +50°C (-40 - 120°F)
Measures voltage of second battery, or temperature, or midpoint: yes
Temperature measurement range -20 +50°C
VE.Direct communication port Yes
Relay 60V / 1A normally open (function can be inverted)
RESOLUTION & ACCURACY (with a 500 A shunt)
Current ± 0,01A
Voltage ± 0,01V
Amp hours ± 0,1 Ah
State of charge (0 – 100%) ± 0,1%
Time to go ± 1 min
Temperature (0 - 50°C or 30 - 120°F) ± 1°C/°F
Accuracy of current measurement ± 0,4%
Accuracy of voltage measurement ± 0,3%
INSTALLATION & DIMENSIONS
Installation Flush mount
Front 63mm diameter
Front bezel 69 x 69mm (2.7 x 2.7 inch)
Body diameter 52mm (2.0 inch)
Body depth 31mm (1.2 inch)
STANDARDS
Safety EN 60335-1
Emission / Immunity EN 55014-1 / EN 55014-2
Automotive ECE R10-4 / EN 50498
ACCESSORIES
Shunt (included) 500A / 50mV
Cables (included)
10 meter 6 core UTP with RJ12 connectors,
and cable with fuse for ‘+’ connection
Temperature sensor Optional (ASS000100000)