An apparatus for applying sealant to a target tissue of a surgical site is provided. A hydraulic reservoir with a desiccant filled breather cap or a hermetically sealed pliable reservoir minimizes the hydraulic fluid’s exposure to condensation and atmospheric moisture. Each of the controller, non-volatile memory and biometric scanner system may be mounted in a base of the portable device, with the biometric system having an exposed surface on a top portion of the base for accepting biometric data such as a fingerprint. The computing device determines the object’s position by comparing images of the light sources and generates an output comprising the position and angular orientation of the object. Embodiments responsively pre-fetch related data, recognize locations, and provide related advertisements.