Description Extraordinarily robust design makes the Spectra LL300N one of the toughest laser levels in use in the construction industry. The LL300N is a fully automatically self-levelling laser level – just switch on and it levels itself in a few moments. No bubbles to check or footscrews to turn. The instrument constantly monitors and maintains its level, and will stop rotating and warn the user if it has had a major disturbance which could affect the overall set-up height. The Spectra LL300N is ideally suited to all groundworks and foundation tasks. The level is very robustly made and is designed to withstand a tripod knock-over. The rotor is protected by a dust and waterproof glass lighthouse encased in a strong alloy frame. The instrument can be switched to manual mode, whereby the level is no longer self-levelling, and can be set to a slope, such as for drainage work. The optional RC601 remote control provides fine slope adjustment contol, on either one or both slope axes; very useful when setting drainage falls. The LL300N Plus set is supplied with a 5000mAh NiMH rechargeable battery pack and charger. Fully self-levelling Extra heavy duty construction Rechargeable Battery Pack Easy to operate – just switch on 5 Years laser level warranty The Spectra LL300N is the ideal civil engineering laser level: fully rainproof and designed to withstand the toughest site conditions, including accidental tripod knock-over. HL450 Laser Receiver Specification The HL450 laser receiver has up/down arrows and a numerical digital readout indicating height difference of laser from datum zero. Operating Range (Radius): 250m Dual LCD Display channels: 21 Extra high 102mm laser reception window On grade sensitivies: 1mm, 5mm Auto shut-off: 30 minutes Waterproof to IP57 Batteries: 2x 1.5 AA 3 Year Receiver Warranty Spectra HL450 Laser Receiver with Digital Millimeter Readout which indicates height above or below datum.
