A inclination meter is a tool for measuring the elevation angle, or from a local angle, on the right Triangle. We can measure the height of the height, flagpole, building, trees that we can\'t reach with the inclination meter. · Old selfie stick · full protractor · laser · A deceleration motor · a toggle switch · old bulb holder · Wood Chips · plastic tubes · two batteries (1. 5V AA) I use the old selfie stick, plastic pipe, bulb holder and wooden parts to make screws, plastic scrap wires for the recliner holder. First connect the bottom of the selfie stick with a plastic tube and install it on wooden parts with the help of the bulb holder. In order to make the motor assembly, a charging pin is connected at the terminal of the motor. In order to make a protractor component, we need a complete protractor. First, Mark on the nut size with the help of the mark to make it suitable for the deceleration motor. Then connect it with the selfie stick holder with the help of the screw and repair the gear motor in the center of the protractor. In order to make the laser assembly, we need a beam of laser to shine together with the button unit, pen cap and wire. Take a plastic wheel that can be easily mounted on the motor shaft. Paste the laser on this wheel. Make a pointer with the help of plastic gear and rubber scrap, which can be mounted on the outer surface of the laser to indicate the angle on the protractor. To make the toggle switch assembly, we need a toggle switch to operate the motor clockwise and counter clockwise Clockwise, old adapter- Here I used a scratched battery stand wire. First make a round hole and place the toggle switch handle on the adapter. Put the battery (1. 5V AA). As shown in the figure, connect the switch. The main purpose of this instrument is to measure the height of buildings, trees, or long objects. So, we need to have some rules about it. Suppose, we need to find the height of the object advertisement as shown in the figure Here we have: h = the height of the inclination meter from the center of the protractor to the base at the bottom. H = height of the object x = distance between E and D y = distance between the bottom of the building and the inclination meter 1 = angle formed by the laser beam towards the top of the object. Ø 2 = the angle of the laser beam at the bottom of the object. Formula: we know, Tan ø = vertical/basetanø 1 = (DE/EC)= (DE/AE) = X/y. . . (1)Tan ø2 = (AB/CB) = Y/h. . . (2) X = y x Tan ø 1y = h x Tan ø 2so, X = h x Tan ø 2 x Tan ø 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . from equation (1)and (2)Or X = h. Tan ø2 . . . . . (3) Now, the total height of the object, H = h X. . . (4)From equation (3)and (4) We have, H = h. Tan ø2 . Therefore, it can be seen from the formula that we need to find the values of angle 2 and Angle 1 to calculate the height of the object. Note: h = the height of the inclination meter from the center of the protractor to the base, which can be measured with scale. Or,H = h (1 + Tan ø2 . Tan ø1) As shown in the figure, the original height of the object is 31. 8 cm. ( Measure from scale) Ø value of 1 = 20 °. and ø2 =(329-270)=59 deg. Then, Tan ø1=0. 36 397and, Tan ø 2 = 1. 66427h = the height of the inclination meter from the center of the protractor to the base at the bottom = 19. 7 cm ( Measure from scale) Although its height can be from 19. 7 cm to 57 cm depends on the object. Now, Object height H = h (1 + Tan ø2 . Tan ø1)H =19. 7(1+ (1. 66427 x 0. 36397))H = 19. 7 x 1. 60574H =31. 63 cm ( Calculate value) It is almost equal to the measured value (=31. 8 cm). % error = ((31. 8-31. 63)x100)/31. 8 =0. 53 conclusion: the advanced inclination meter measures the exact value near the object.