OPERATING THE M18/M18L
SPARK TEST
A spark test should be conducted once every six months (as you would check your smoke
detector batteries).
There is no need to use an extended duration. As long you see a visible spark between the
electrodes (one second), the weapon is functional.
The Reason for the Spark Test Include:
- To verify the TASER device is working.
- To verify that the batteries are adequately charged.
- There are components in the high voltage section of the M18/M18L that are more
reliable when energized (“conditioned”) on a regular basis.
Spark Test Instructions
- Verify that the safety switch is in the down (SAFE) position.
- Verify that the TASER cartridge is removed. A spark test should never be conducted
with a TASER cartridge in the device.
- Point the device in a safe direction (such as the floor) and verify that your fingers
and no part of your body are in front of the device.
- Place the safety switch in the up (ARMED) position.
- Depress the trigger and confirm sparking across the electrodes at a rapid rate.
- Place the safety switch in the down (SAFE) position.
LOAD THE TASER CARTRIDGES

WARNING: Never place your hands, fingers, or any part of your body in front of the
cartridge. When loading and unloading, always hold the cartridge on the sides or top.
LOADING:
- Verify that the safety switch is in the down
(SAFE) position.
- Point the device in a safe direction.
- Place the cartridge into the front of the
weapon until an audible click is heard.
- Verify that the cartridge is secure by
pulling on the sides of the cartridge.
UNLOADING:
- Verify that the safety switch is in the down
(SAFE) position.
- Point the device in a safe direction.
- Depress the tabs on the sides of the
cartridge and remove.
The TASER Cartridges for the M18/M18L are specifically designed so there is no “up” or “down”
position – enabling you to quickly reload one in a stressful situation without worrying about
putting it in upside down.
AIMING AND PROBE PLACEMENT
Normally, aim the laser of the device at one of the large muscle groups (center of mass) such
as the torso or thigh areas.
The top probe impacts the target near the laser beam; however, the probe impact distance
from the laser beam will vary depending on the distance between the device and the
target. See www.TASER.com for current specifications.
The bottom probe impacts at an 8-degree angle from the top probe. This results in a spread
of approximately 1’ for every 7’ of distance from the target. Greater probe spread increases
effectiveness. If possible, a minimum 4-inch spread between the probes is recommended.

Hold the M18/M18L device so that
the cartridge is vertical for an upright
target.
WARNING: Avoid head, face, throat, or groin exposure unless operator safety dictates
otherwise.
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