• Zero reference button
• Hold button

Pro 360 gives you immediate, full 360° readings of level, plumb and all angles in between. It consists of a light, rigid, ultra-precise platform that allows the sensor and microprocessor circuit to provide unsurpassed accuracy of ±0.1° at level and plumb (±0.2° maximum error otherwise). Simple calibration requiring no special fixtures. Batteries and carry case included. 1-year warranty.