Nikon Laser IRT 4-12X42, Instruction Manual

When maximum magnification (12x) is selected. 

*(at minimum magnification) – (at maximum magnification) 
** moa = minute of angle 
*** The battery chamber is water resistant, not waterproof. Water may enter the 
device if the laser IRT is submerged in water. If water enters the battery chamber, 
wipe out any moisture and allow time for the chamber to dry. 
 

Waterproof models: 

The Laser IRT is waterproof, and will suffer no damage to the optical system if 
submerged or dropped in water to a maximum depth of 2 meters for up to 5 
minutes. 

The Laser IRT offers the following advantages: 

•

Can be used in conditions of high humidity, dust and rain without risk of 
damage. 

•

Nitrogen-filled design makes it resistant to condensation and mold. 

Observe the following when using the Laser IRT: 

•

As the unit does not have perfectly sealed structure, it should not be 
operated nor held in running water. 

•

Any moisture should be wiped off before adjusting movable parts (Power 
selector Ring, eyepiece, etc.) of the Laser IRT to prevent damage and for 
safety reasons. 

To keep your Laser IRT in excellent condition, Nikon Vision recommends regular 
servicing by an authorized dealer. 
 

 
 
 
Troubleshooting/Repair 

If your Nikon Laser IRT should require repair, please contact your local dealer for 
details regarding where to send it. Before doing so, you are advised to consult the 
Troubleshooting Table below. 
 

Symptom Check 

Points 

 
Unit does not turn on – 

• Depress POWER button 

LED fails to illuminate 

• Check and replace battery if necessary