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                                                      X-431 Module S2 User Manual  
 
 
 
 
Multimeter test 
pen (black + red) 
 
 
During a multimeter function test, it must be 
connected to the COM and V/Ω/C terminals 
of the sensor module. 
 
 
They are mainly used for piercing the 
insulation of wires to allow for automotive 
electrical measurements without causing 
damage to the wires. Additionally they can 
be used as pin-tip probes while working with 
small circuit boards. 
 
 
To charge the sensor module together with 
the included USB cable. 
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