Special featuresThe bright green cross line with marketing allows the user to create patterns at equal intervals without having to measure each space. Green laser technology improves the visibility of the laser lines up to 4 times. 1/4" thread compatible with RYOBI Telescopic Pole RBCLTP1 or with any tripod with 1/4" thread. The laser line will flash if the laser is out of the horizontal plane. And the intuitive LED will light up red if the laser is out of the horizontal plane. On-off switch for safe transport. Technical dataPERFORMANCE Laser color Green Laser wavelength [nm] 510-520 Measuring range (m) 15 Self-levelling time [s] Max 5 Secs. Self-levelling range [°] 3 WEIGHT Weight (kg) 0.4 Standard includedBATTERY Number of batteries included 2 Battery type 2 x AA RBCLLG2 1x