
Prolaser® Laser Square
Model No. 891
User Manual
Manual del usuario
Manuel de l'utilisateur
Manuale per l'utente
2AA
100'/30m
INCLUDED

1
Thank you for purchasing the Prolaser® 891 Laser Square.You are now
the owner of one of our innovative range of state of the art tools. These
tools incorporate new laser technology, enabling the professional user
and the serious D.I.Y enthusiast to achieve accurate results and reduce
valuable work time.
Applications
The Prolaser® 891 Laser Square has been designed for indoor angle
layout. Depending on the light conditions, it can also be used outdoors,
using the laser target. This laser level projects 900 laser lines, and can
be used for:
• Flooring, tile layout, paneling, wallpapering, stenciling, wainscoting
• Finish carpentry
• Outlet and switch layout
• Wall stud layout and partition installation
Keep this user manual in a safe place for future
reference.
Note
English

2
Contents
Features 3
Safety Instructions 4
Overview 5
Operating Instructions 6-9
Care and Maintenance 10
Specications 11
Warranty 12

3
• Projects 90° highly visible laser lines
• ABS unit with aluminum base for improved atness
• Quick & easy one-button operation
• Squares up to 100' (30m) with target
• Highly accurate laser: 0.0005 in/in (0.5mm/m)
• Cylindrical vial & surface level
• Long lasting: up to 40 hours continuous use
• Includes: soft carry case, laser target, batteries
Features
The Prolaser® 891 Laser Square is a Class II Laser. It is
manufactured to comply with CE international rules of
safety.
NOTE

Laser Radiation: Serious eye injury could be caused by
looking directly into the beam or by projecting the beam into
the eyes of others.
• The use of protective eyewear is recommended.
• Do not look into a laser beam using magnifying optical equipment,
such as binoculars or telescope, as this will increase the level of
eye injury.
• Always position the laser beam so that it does not cause anyone to
directly stare into it.
4
WARNING
Read this user guide thoroughly before using your
Prolaser® Laser Square. Always operate the Laser Square according to
the procedures and warnings in this manual.
Safety Instructions

6
Laser Square
1. Remove the battery cover
2. Insert 2 AA alkaline batteries, according to the polarity marked inside
the battery compartment
3. Snap the battery cover back into place
4. Set up the Laser Square on a at, vibration-free surface
5. Press the On/Off button to turn on the laser lines
6. Press the On/Off button to turn off the laser lines
Operating Instructions
Laser Target
The Prolaser® 891 Laser Square is effective at up to 100ft (30m) when
used together with the Laser Target.
Use the Laser Target over distances of more than 33ft (10m) and in
bright light conditions.

7
Applications
1. Position the instrument
on any plane
2. Position the instrument
on a vertical plane
90
0
Laser Line
Vertical Laser Line
Cylindrical Vial
Horizontal Laser Line
Wall
Wall
Ground
90
0

8
3. Position the instrument on the ground
Ground
Surface Level
Vertical Laser Line
90
0
WallWall

9
4. Long distance application
90
0

10
Preventative Maintenance
• Store in a clean dry place, between -4°F – +122°F (-20°C – +50°C).
• Before moving or transporting the unit, ensure that it is turned off.
• If the Laser Square is wet, dry off with a dry cloth. Do not
seal the laser in the carrying case until completely dry.
• Do not attempt to dry the Laser Square by re or with an
electric dryer.
• Do not drop the Laser Square, avoid rough treatment, and avoid
constant vibration.
• Clean with a soft cloth, slightly dampened with a soap and water
solution. Do not use harsh chemicals, cleaning solvents or strong
detergents.
• Keep the laser aperture of the Laser Square clean by wiping it gently
with a soft lint-free cloth.
• Remove batteries from the Laser Square during lengthy periods of
non-use, and store in carrying case.
• Ensure that the Laser Square is turned off before
removing batteries.
Care and Maintenance

11
Repairs
• See the Warranty section at the end of this manual.
• Do not take the Laser Square apart or permit any
unqualied person to take the laser level apart.
Unauthorized servicing may irreparably damage the
Laser Square and invalidate the warranty.
Specications
• Laser range: up to 100' (30m) with target
• Laser accuracy: 0.0005 in/in (0.5mm/m)
• Vial accuracy: 0.001 in/in (1mm/m)
• Dimensions: 5.9" x 5.9" x 8.3" (150 x 150 x 210mm)
• Power: 3V (2 AA alkaline batteries)
• Fan angle: 110°
• Operation temperature: +14°F – +113°F (-10°C – +45°C)
• Storage temperature: -4°F – +122°F (-20°C – +50°C)
• Weight: 0.55lb (0.25 kg) with batteries
• Laser wavelength: 635nm
• Laser classication: class II
• CE, RoHs, WEEE, REACH compliant
Specications

12
This product is covered by a two-year limited warranty against defects
in materials and workmanship. It does not cover products that are used
improperly, altered, or repaired.
Please register this warranty at www.kapro.com
In the event of a problem with the laser level you have
purchased, please return the product to the place of
purchase with proof of purchase.
Kapro Industries Ltd.
quality@kapro.com
www.kapro.com
©2011 Kapro Industries Ltd.
Warranty

13
Gracias por adquirir la Escuadra Láser Prolaser® 891. Usted posee ahora
una integrante de nuestra innovadora gama de avanzadas herramientas.
Estas herramientas incorporan la nueva tecnología láser, permitiendo al
usuario profesional y al entusiasta serio del bricolaje lograr resultados
precisos y reducir su valioso tiempo de trabajo.
Aplicaciones
La Escuadra Láser Prolaser® 891 ha sido diseñada para trazar ángulos
en interiores. Dependiendo de las condiciones de luz, también puede
usarse en exteriores con el objetivo láser. Este nivel láser proyecta
líneas láser en 900 y puede usarse para:
• Colocación de pisos, distribución de baldosas, instalación de paneles,
empapelado, rotulado, colocación de revestimientos
• Terminaciones de carpintería
• Distribución de tomacorrientes e interruptores
• Distribución de entramado e instalación de particiones
Guarde este manual del usuario en lugar seguro
para referencia futura.
Nota
Spanish

Características 15-16
Descripción general 17
Instrucciones de operación 18
Aplicaciones 19-21
Cuidado y mantenimiento 22
Especicaciones 23
Garantía 24
14
Contenido