Abstract: A method for monitoring whether a number of a rat traps have been activated, where each tap has a moveable part, a fixed part, a switch and a signaling device, such than when the moveable part is moved towards the fixed part then the signaling device transmit a signal to a user's smartphone having a display on which display the user is informed whether a rat has gone into the trap. An opening size between the moveable part and the fixe part is detected indicating whether a rat, a mouse or a false alarm is detected. By the invention a beneficial and accurate way of monitoring the status rat traps are obtained.

Abstract: A method for monitoring whether a number of a rat traps have been activated, where each tap has a moveable part, a fixed part, a switch and a signalling device, such than when the moveable part is moved towards the fixed part then the signalling device transmit a signal to a user's smartphone having a display on which display the user is informed whether a rat has gone into the trap. An opening size between the moveable part and the fixed part is detected indicating whether a rat, a mouse or a false alarm is detected.

Abstract: A food storage building (10) having exterior wall surface (55) and exterior ceiling surfaces (65) held in spaced relationship with interior wall surfaces (64) and interior ceiling surfaces (64) to form interconnecting between wall and between wall cavities. Ventilation duct (41) is positioned within the between wall cavities around the base perimeter of wall systems (11). The ventilation duct (41) has a plurality of vent holes (42) for supplying heated or cooled forced air from heat source (40) to the between wall cavities for purposes of holding interior wall surfaces (54) and interior ceiling surfaces (64) above the drew point for the interior atmospheric conditions of food storage building (10).