Spectra Precision LL300S Single Plane Laser Rugged, fully automatic self-levelling laser designed for reliable field levelling, agricultural land shaping, drainage work and general site layout. The LL300S is built for practical field use where dust, vibration and rough handling quickly destroy lighter units. This system delivers a stable 360° laser plane with excellent long-range visibility and dependable accuracy, making it ideal for laser land levelling, scraper work, irrigation setup and construction layout. Supplied complete with HL450 digital receiver for fast and accurate grade reading, as well as the RC1402 remote control for convenient slope adjustment and operation from a distance. Included Items • Spectra Precision LL300S single plane laser transmitter • Spectra HL450 digital laser receiver • Spectra RC1402 remote control • Receiver clamp/mounting bracket • Carry case • Battery pack and charger • User documentation This is an open-box demo unit in excellent condition. Fully tested and checked. Sold with a 1-year warranty. Key Specifications • Fully automatic self-levelling horizontal laser • Single-plane laser system • Working range: up to 800 m diameter • Accuracy: ±2.2 mm at 30 m • Self-levelling range: ±5° • Rotation speed: 600 RPM • Laser class: Class 2 visible red laser • Remote control operating range: up to 100 m • Receiver: HL450 digital readout receiver • Environmental protection: IP66 dust and water resistant • Operating temperature: -20°C to +50°C • Power supply: Rechargeable NiMH battery pack or alkaline batteries • Battery runtime: up to 45 hours depending on setup • Weight: approximately 3.1 kg Features • Built for harsh agricultural and construction conditions • Fast automatic self-levelling setup • Stable laser plane for accurate levelling work • Digital grade readout receiver for precise elevation control • Remote slope adjustment capability • Heavy-duty sealed housing against dust and moisture • Long operating time for full-day field work • Reliable long-range operation • Suitable for laser scrapers, irrigation levelling and general construction layout • Simple operation with minimal setup time A dependable, field-proven laser system designed for practical day-to-day work where accuracy and reliability matter.