From The TimeSplitters Wiki

ElectroTool
Ammo	Max Clip Size/Max Ammo
Fire Rate bullets per sec/cartridge time	How many bullets it fires per second (Example: 2bps)
Reload Time	How many seconds it takes to reload (Example: 0.9sec)
Damage (per Single Shot) Head/Body/Leg	What percentage of health it takes off to the head & body.
Type	Other
Zoom	Yes
Primary Fire	Shoots beam of electricity
Secondary Fire	Shoots bolts
Games	TS2, TSFP

The ElectroTool shoots a continuous stream of electricity over long distances, and secondary fire shoots off bolt of energy.

This weapon is seen in TimeSplitters 2 and TimeSplitters: Future Perfect. In TimeSplitters 2's Story mode, it was used to overload the power nodes in the Robot Factory. In Future Perfect, it was also used to activate the bridge in Something to Crow About and to overload PROMETHEUS' shields. Robots have a weakness to this weapon due to its electrical nature.

The ElectroTool is usually considered a poor choice for multiplayer matches because of the long periods of time it takes to defeat an enemy with it, but others would argue its range, which is among the largest of any weapon in the game, makes up for it.