The Leviathan - V2 optical is one of the most advanced ETUs (electronic trigger unit) on the market.
It combines optical and switch sensors for better handling and durability.
Built-in wireless communication for quick setup using iOS or Android smartphones!
Tactile trigger switch has a travel distance of only 0,13mm for ultimate hair trigger feeling.
Unique Real feel trigger system (RFTS) with integrated spring simulates trigger resistance like a real gun. It adds secondary resistance with release after the fire. RFTS was designed by professional gunsmiths for a more realistic feel when shooting.
External output and input port serves for custom accessories.
Easy installation into the gearbox (fully integrated inside the gearbox instead of the original trigger contacts).

Leviathan – V2 optical supports these airsoft guns:
M4, M16, HK416, AR15 with V2 gearbox according to TM design.
M4 with V2 gearbox from Krytac.
SR25 with V2 gearbox according to TM design
MP5 with V2 gearbox according to TM design
G3 with V2 gearbox according to TM design
M249 with V2 gearbox according to TM design
M107 BARRETT from Snow wolf company

Leviathan - V2 optical is not compatible with these gearboxes:
KWA gearbox V2.5
S&T or Arcturus gearbox V2
ICS SSS gearbox V2
Ares Amoeba gearbox V2
G&G G2 gearbox V2
APS eSilver edge gearbox V2
Gearbox V2 with microswitch
And some others.

MAIN FUNCTIONS:
Adds shooting modes independent for every position on the fire selector (SAFE - SEMI - AUTO).
Three adjustable bursts (range 2 - 20 shots).
Rate of fire can be reduced to 40%. It add breaks between shots to reduce RoF.
Adjustable strength active braking (can be disabled)
Pre-cocking function for instant shot on SEMI fire.
Electronic fuse set sensitivity for high current detection to avoid any damage if something goes wrong.
Low battery indication for 2S - 4S li-po and 3S - 4S li-fe.
On the board are input and output ports for controlling external devices or Leviathan.
Statistics screen shows shooting output with cycle timing, motor current consumption, rate of fire and mosfet temperature. It allows you to fine-tune gearbox upgrades.
Application shows actual battery voltage value. Color lines indicates battery charge status.
User can save multiple settings under profiles.
Update function fixes bugs and adds new features to the device.
There are three shot counters. Total count every shot during the device lifetime. User counter can be reset by user anytime. Power-up counter is reset by battery connection
Error log shows errors made during the device life.
For better security wireless connection can be disabled by the selector switch (can be deactivated).
Leviathan monitors current, voltage and temperature to avoid any damage when something goes wrong.
Motor vibrates and beeps as a feedback for user.
Programmed settings are saved in the Leviathan - EVO 3 memory immediately after their change, so settings aren't lost when the battery is disconnected or lost connection with smartphone.
FIRE MODES:
Independent for every position on the fire selector (SAFE - SEMI - AUTO)
SAFE: no responding on the trigger pull.
Semi: it fires single shot per trigger pull.
Semi/Burst: short trigger pull fires single shot, long trigger pull fires burst.
Binary trigger: it fires single shot when trigger is pulled and another single shot when is released.
Burst: gun shoot burst per trigger pull.
BurstX+BurstY: short trigger press fires burstX, long trigger press makes burstX+burstY fire.
BurstX/Full: short trigger press fires burstX, long trigger press makes auto fire.
Full: gun shoots full auto until you release the trigger.
TECHNICAL SPECIFICATIONS:
Easy installation inside a version 2 gearbox, compatible with Tokyo Marui standard V2.
No modifications are needed in the gun or Leviathan.
It uses optical sensor actuated by sector gear cam for perfect semi and burst fire timing.
Tactile trigger switch makes short click for great hair trigger mod.
The wire length between the gearbox and the battery connector is 290mm.
There are high quality wires 1,5 mm (AWG16) with thin and hard MPPE insulation.
Wire outer diameter is only 2.06 mm and the blue wire is 1.24 mm.
Board is covered by conformal coating, this helps protect the Leviathan against water damage.
On the board is input port for controlling output port, 3rd burst, external trigger, magazine reload, etc. and output port for the hop-up chamber BBs illumination, powering electric magazine, flashlight, laser, etc.
An anti-reversal latch is required for pre-cocking function. WARNING: This increases wear and tear on the gearbox.
Specified for common batteries up to 17V (Ni-xx 8.4 - 12V, lipo 7.4 - 14.8V).
Device increases gun rate of fire and battery holds longer, than with basic wiring.
With active braking ON piston isn't partially stretched, spring is fully released, parts in gearbox aren't under strain and nozzle locks hop-up chamber in greater part (depends on ROF).
In weapons with very high rate of fire (ROF) active brake solves multiple shots in semi mode.
The braking effect is the most powerful with high torque motor.
Remove from the gearbox: cut off lever, trigger, trigger contacts and trigger block, you will not need them with the Leviathan - V2 optical.
USE WITH BRUSHLESS MOTOR:
Leviathan can be used with brushless motor (Warhead, Option No. 1, etc.)
The following functions in the Leviathan must be set to:
Active brake = Off
Rate of fire = 100%

Code: JT-LEV-V2S

Gearbox Parts

Jefftron Leviathan Mosfet - V2 Optical Rear Wired