
TFN Laser Rangefinders provide accurate distance measurement and target positioning for professionals operating in demanding environments.
From compact observation rangefinders to advanced tactical positioning systems and military-grade long-range measurement instruments, our laser rangefinder portfolio helps users obtain critical field data quickly and reliably.
Whether used for defense, border surveillance, infrastructure inspection, forestry, surveying, or outdoor operations, TFN laser rangefinders improve situational awareness, reduce measurement errors, and support faster decision-making.
TFN Laser Rangefinder Solutions Comparison
| Features / Models | AS Series | FKI Series | BKD Series |
|---|---|---|---|
![]() | ![]() | ![]() | |
| Product Positioning | Observation & Distance Measurement | Target Positioning & Spatial Measurement | Military-Grade Long-Range Measurement |
| Max Distance | Up to 1.8 km | 4 km / 10 km | 6 km /10 km |
| Distance Measurement | ✓ | ✓ | ✓ |
| Horizontal Distance | — | ✓ | ✓ |
| Vertical Distance | — | ✓ | ✓ |
| Height Difference Measurement | — | ✓ | ✓ |
| Azimuth Measurement | — | ✓ | ✓ |
| Inclination Measurement | — | ✓ | ✓ |
| Range Gating | — | ✓ | ✓ |
| Data Storage | — | ✓ | — |
| RS232 Data Output | — | — | ✓ |
| External Trigger | — | — | ✓ |
How to Choose a Right Laser Rangefinder?
Choose AS Series If You Need
- Lightweight observation and ranging
- Everyday field operations
- Forestry and wildlife observation
- Utility inspection
- Security patrols
Choose FKI Series If You Need
- Distance + compass + inclinometer
- Target positioning
- Surveying and mapping
- Terrain analysis
- Reconnaissance missions
Choose BKD Series If You Need
- Maximum ranging capability
- Military-grade performance
- Long-range target measurement
- System integration via RS232
- Fixed-site or vehicle-mounted deployment



