FOIF EL03 Pro Digital Level

The FOIF EL03 Pro is a high-precision digital level designed for professional elevation measurement and precision leveling. Its 50× telescope and electronic reading system provide detailed staff observation, while the color touchscreen and onboard measurement programs make field operation more intuitive. The instrument also supports image-assisted target pointing, helping surveyors improve efficiency when working on demanding leveling projects.

Key Features

• 0.3 mm height accuracy with an Invar staff

• 50× telescope for detailed staff observation

• 3.5-inch color touchscreen

• Image-assisted target pointing for faster field operation

• Single, averaging and tracking measurement modes

• Onboard measurement, stakeout and leveling adjustment programs

• 0.01 mm height-difference display resolution

• 2 GB internal data storage

• RS-232 and USB communication

• IP54 protection for field surveying

• More than 12 hours of continuous operation

High-Precision Leveling with a Focus on Field Efficiency

The EL03 Pro combines precision digital leveling with a more modern field interface than conventional digital levels. Its high-magnification optical system is suited to detailed staff observation, while the touchscreen interface and onboard programs simplify common measurement workflows. Image-assisted targeting can further reduce the time required to locate and aim at the staff, making the EL03 Pro suitable for projects where both precision and field productivity are important.

Core Specifications

• Model: FOIF EL03 Pro

• Digital reading accuracy with Invar staff: 0.3 mm/km

• Digital reading accuracy with barcode staff: 1.0 mm/km

• Measurement range: 1.8–110 m

• Telescope magnification: 50×

• Effective aperture: 50 mm

• Shortest focusing distance: 0.9 m

• Compensation range: ±14′

• Compensation accuracy: 0.2″

• Typical measurement time: 2 s

• Height display resolution: 0.01 mm

• Internal memory: 2 GB

• Display: 3.5-inch color touchscreen

• Battery: 2600 mAh / 7.2 V lithium battery

• Operating time: over 12 hours

• Communication: RS-232, USB

• Protection rating: IP54

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

Applications

• Precision leveling

• Engineering surveying

• Construction elevation control

• Settlement and deformation monitoring

• Road and railway projects

• Survey control networks

• Industrial elevation measurement

• High-accuracy topographic surveying