Wearable camera maker Digital Ally said it received an order of more than $1.1 million from the Michigan police force, according to Reuters.

Digital Ally, which produces cameras compact enough to be pinned to shirts, belts or eyeglasses, has reported heightened demand for its product since the shooting, Reuters reported.

The company said on Thursday it received an order of more than $1.1 million from Michigan state police, Reuters reported.

Digital Ally said the Michigan police force placed an order for the company's flagship video cameras for its fleet, highlighting the spike in demand for surveillance systems since a policeman fatally shot an unarmed teenager in Ferguson, Missouri on Aug. 9, according to Reuters. Interest in security cameras has surged as pressure mounts on the police for a transparent investigation into the Aug. 9 shooting.

The company's shares jumped 20 percent in premarket trading on Thursday, adding to the 200 percent spike in their value since the shooting, Reuters reported.

Michigan police ordered Digital Ally's DVM-800 video camera, which are fitted in the rear view mirrors of patrol cars. Combined with the company's miniature, body-worn audio-video systems, the two generated about 45 percent of Digital Ally's total revenue of $3.5 million in the quarter ended June 30, Reuters reported.

The company said the order will ship in the current quarter and brings the total value of its contract with the State of Michigan to $6.5 million, according to Reuters.

Digital Ally's shares were up 19 percent at $13.65 in premarket trading, Reuters reported. Shares of Taser, best known for its stun guns, was down 1.25 percent at $15.75.