Blue Tees Golf Series 4 Ultra Rangefinder. The Series 4 Ultra is their new high end, premium laser rangefinder. S4 Ultra boasts their most advanced technology to date, unparalleled flag lock capability up to 350 Yards, industry leading electronics and construction, an OLED display and an IP54 weather resistant rating.

- OLED Display
- Brightness Control 
- Auto Depth Filter
- Ultra Magstrip
- Slope Switch
- Crystal Clear Display
- Advanced Flag Lock
- 1200 Yard Range
- Active Tracking                                                                                                                        - - Pulse Vibration
- IP54 Weather Resistant                                                                       
- BTS004-010-OS