Integrated Newton's third law tester

An integrated Newton's third law tester comprises a housing, a cover plate, a first force probe, a second force probe, a connecting piece, a first push-pull member, a second push-pull member, a display device and a circuit board provided with a control circuit. The cover plate is detachably arranged on the housing. The housing is provided with a guide groove. The first force probe and the second force probe are arranged inside the guide groove in a slidable way and along the length direction of the guide groove. The first force probe is connected with the second force probe through the connecting piece. The first force probe end face and the second force probe end face far away from each other are respectively provided with the first push-pull member and the second push-pull member. The circuit board and the display device are both arranged on the housing. The tester has the advantages of convenient use and high test result accuracy.