FOIF LP402L 2″ Laser Digital Theodolite

The FOIF LP402L is a 2″ digital theodolite designed for precise angle measurement and visible target alignment in surveying and construction applications. Its integrated laser pointer works through the telescope and can be seen up to 150 m outdoors in daylight through the eyepiece under suitable conditions. An absolute encoder preserves angle measurements when the instrument is powered off, while the repeated angle measurement function can calculate average readings for improved measurement reliability.

Key Features

• 2″ angular accuracy

• Integrated telescope laser pointer

• Laser visibility up to 150 m in daylight through the eyepiece

• Adjustable laser pointer brightness and focus

• 30× erect-image telescope

• Absolute encoder angle measurement

• Repeated angle measurement and averaging

• Dual-side LCD displays with backlight

• Single-axis compensation

• Laser plummet included

• Rechargeable Ni-MH battery or AA batteries

• IP55 protection

Laser-Assisted Angle Measurement

The LP402L combines electronic angle measurement with a visible laser pointer integrated into the telescope. The laser provides a practical visual reference when setting out points, aligning structures or working with targets that are difficult to identify through the telescope alone.

For angle work requiring repeated observations, the instrument can perform continuous measurements and calculate an average angle value. This makes the LP402L particularly suitable for construction alignment and general engineering surveying where repeatable angle readings are important.

Core Specifications

• Model: LP402L

• Angular accuracy: 2″

• Reading system: Absolute encoder

• Minimum reading: 1″ / 5″ / 10″

• Telescope magnification: 30×

• Objective aperture: 45 mm

• Field of view: 1°30′

• Minimum focusing distance: 1.0 m

• Compensation range: ±3′

• Compensation setting accuracy: 1″

• Display: Dual-side LCD with backlight

• Laser pointer wavelength: 635 nm

• Laser pointer effective range: 150 m

• Laser spot size: 5 mm at 100 m

• Laser plummet: Class 2, 635 nm

• Power supply: 6V Ni-MH rechargeable battery or 4 AA batteries

• Operating time: Up to 24 hours with rechargeable battery

• Operating temperature: -20°C to +50°C

• Protection: IP55

Applications

• Construction alignment

• Building layout

• Land surveying

• Engineering surveying

• Structural positioning

• Road and infrastructure alignment

• Angle measurement

• General field surveying