Similar to the Warren-Knight WK-23-2070 Pendulum Clinometer, the WK-23-2080 Pendulum Clinometer has the same features and capabilities, but it is smaller in size. It features an extended vernier with a magnifier, which makes reading easy. The WK-23-2080 features a range of +180° to 0° to -180°. It reads to 1 minute 30 seconds of Arc. The base is 6″ x 1½” with a height of 4½”. The WK-23-2080 Pendulum Clinometer weighs 2 lbs.