A level meter comprising: a plurality of light emission segments that are arranged in a predetermined array direction and that form an emission region by allowing at least one light emission segment to emit light; a first register portion in which a default emission condition concerning each of the light emission segments is registered; a second register portion in which, when the emission region is formed by allowing at least two of the light emission segments consecutively arranged in the array direction to emit light, an emission-condition specified value that indicates a command to apply a predetermined specified emission condition without applying the default emission condition is registered concerning a subsequent segment positioned on a more upstream side in a predetermined emission proceeding direction than a foremost segment positioned on a most downstream side in the emission proceeding direction in the at least two light emission segments forming the emission region; and a control portion that controls light emission of the light emission segment on a basis of registration contents of the first and second register portions so that the emission region moves or spreads in the emission proceeding direction along the array direction in accordance with an increase or a decrease in numerical quantity to be expressed by the emission region, characterized in that the control portion allows all of the light emission segments forming the emission region to emit light on a basis of the default emission condition and allows the foremost segment to emit light on a basis of the default emission condition while allowing the subsequent segment to emit light on a basis of the specified emission condition. a plurality of light emission segments that are arranged in a predetermined array direction and that form an emission region by allowing at least one light emission segment to emit light; a first register portion in which a default emission condition concerning each of the light emission segments is registered; a second register portion in which, when the emission region is formed by allowing at least two of the light emission segments consecutively arranged in the array direction to emit light, an emission-condition specified value that indicates a command to apply a predetermined specified emission condition without applying the default emission condition is registered concerning a subsequent segment positioned on a more upstream side in a predetermined emission proceeding direction than a foremost segment positioned on a most downstream side in the emission proceeding direction in the at least two light emission segments forming the emission region; and a control portion that controls light emission of the light emission segment on a basis of registration contents of the first and second register portions so that the emission region moves or spreads in the emission proceeding direction along the array direction in accordance with an increase or a decrease in numerical quantity to be expressed by the emission region, characterized in that the control portion allows all of the light emission segments forming the emission region to emit light on a basis of the default emission condition and allows the foremost segment to emit light on a basis of the default emission condition while allowing the subsequent segment to emit light on a basis of the specified emission condition.