Sensor

Primary action and move action. Provokes. Target one point within line of effect. Target self. Range 300'. Concentration Place a sensor at your height relative to the ground within 300'. You need not see the target point but it is prevented by solid obstructions. This spell cannot be set on or in liquids. Functions as your own eye does. This uses one eye, so to see you must keep one eye closed, otherwise you gain the distracted condition. Moving with both eyes open causes you to be impaired.