Topcon DL-502 Digital Auto Level – High-Performance Precision with 32x Magnification and 2,000-Point Memory
The Topcon DL-502 Digital Auto Level is a reliable, efficient, and high-performance leveling solution designed for construction, civil engineering, and surveying professionals. Equipped with 32x magnification, this digital level offers precise height and distance measurement capabilities. With ±0.6 mm/km height accuracy and a measuring range up to 328 feet, the DL-502 is well-suited for projects that require consistent and fast results with minimal operator error.
This model incorporates Topcon’s advanced Wave-and-Read technology, delivering highly accurate measurements in just 3 seconds. It also features a shock-resistant pendulum compensator with magnetic damping for optimal stability and accuracy on rugged job sites. The 8-key interface simplifies operation, while the 2,000-point internal memory allows for storing essential data on-site.
Durable and weather-resistant, the DL-502 is rated IPX4, protecting it from splashes and ensuring reliable use in varying environmental conditions. It is the ideal digital level for professionals seeking fast, dependable, and precise results.
Key Features
- 32x Optical Magnification for sharp, long-distance sighting
- Height Accuracy: ±0.6 mm/km (double-run)
- Distance Accuracy: ±10 mm at 10 meters
- Measuring Range: From 5.2 ft to 328 ft (1.6 m to 100 m)
- Fast Measuring Time: Reads in approximately 3 seconds
- Wave-and-Read Technology: Increases efficiency and reduces error
- Compensator System: Shock-resistant pendulum with magnetic damping
- Compensator Range: ±15 minutes for greater leveling stability
- Backlit LCD Display: 128×32 dot-matrix screen for clear data visualization
- Simple 8-Key Interface: User-friendly operation for faster measurements
- Internal Memory: 2,000-point capacity for essential on-site data storage
- Communication Port: RS-232C interface for data transfer
- Dust and Water Protection: IPX4 rating for outdoor job site durability
- Battery Operation: Up to 16 hours with rechargeable Li-ion battery
Technical Specifications
| Specification | Topcon DL-502 |
|---|---|
| Magnification | 32x |
| Height Accuracy | ±0.6 mm/km (double-run) |
| Distance Accuracy | ±10 mm at 10 m |
| Measuring Range | 5.2 ft – 328 ft (1.6 m – 100 m) |
| Measuring Time | Approx. 3 seconds |
| Compensator Type | Pendulum with magnetic damping |
| Compensator Range | ±15 minutes |
| Tilt Sensor | Not included |
| Display | 128×32 dot-matrix LCD with backlight |
| Keyboard | 8-key interface |
| Internal Memory | 2,000 points |
| Removable Memory | Not supported |
| Communication Interface | RS-232C |
| USB Support | No |
| Water/Dust Protection | IPX4 |
| Operating Temperature | -4°F to +122°F (-20°C to +50°C) |
| Dimensions | 10.1″ D x 6.2″ W x 7.2″ H |
| Weight | 5.3 lbs (2.4 kg) |
| Battery Type | BDC46B Rechargeable Li-ion (7.2V) |
| Operating Time | Up to 16 hours |
Suitable Applications
- Construction Sites: Ideal for establishing benchmarks and checking elevations
- Civil Engineering Projects: Accurate height data collection for roadwork, rail, and infrastructure
- Surveying Tasks: Digital readings improve productivity and reduce human error
- Site Layouts: Fast readings save time during large-scale site preparations
Advantages
- Reliable Accuracy: Consistent results with ±0.6 mm height precision
- Simple Operation: 8-key interface for fast learning and usability
- Long-Lasting Power: Operates up to 16 hours on a single charge
- Weather-Ready Design: Operates under diverse site conditions with IPX4 protection
- Data Handling: Store essential data with built-in memory and export via RS-232C
Comparison Table: Topcon DL Series
| Model | Magnification | Height Accuracy | Memory | Keyboard | Battery Life | Water Protection |
|---|---|---|---|---|---|---|
| DL-501 | 32x | ±0.2 mm/km | 10,000 points | 27 Alphanumeric | Up to 14 hours | IP54 |
| DL-502 | 32x | ±0.6 mm/km | 2,000 points | 8 Keys | Up to 16 hours | IPX4 |
| DL-503 | 28x | ±0.8 mm/km | 2,000 points | 8 Keys | Up to 16 hours | IPX4 |
Package Includes
- Topcon DL-502 Digital Auto Level
- BDC46B Rechargeable Li-ion Battery
- Battery Charger
- Carrying Case
- User Manual
Frequently Asked Questions (FAQs)
Q1: What kind of display does the DL-502 use?
A1: It uses a 128×32 dot-matrix LCD with backlight for clear and readable data display.
Q2: How many points can the internal memory store?
A2: The internal memory can store up to 2,000 measurement points.
Q3: Is the keyboard user-friendly?
A3: Yes, the DL-502 uses an intuitive 8-key layout for quick and easy operation.
Q4: Does the DL-502 include a tilt sensor?
A4: No, the DL-502 does not include a dual-axis tilt sensor like the DL-501.
Q5: How long can it operate on a single battery charge?
A5: The rechargeable battery supports up to 16 hours of continuous operation.















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