Abstract: Disclosed herein are a monitoring device and systems utilising one or more such monitoring devices. The monitoring device comprises a protective housing containing: a passive infrared (PIR) sensor; a power supply a microcontroller; and a wireless transceiver. The power supply powers each of said PIR sensor, said microcontroller, and said wireless transceiver. The microcontroller is adapted to send an alert message, via said wireless transceiver, upon receiving a motion detection signal from said PIR sensor.

Abstract: A collapsible equipment tower is operable between an extended configuration and a contracted configuration. The equipment tower has a base, having a base frame and supporting a solar panel, and a pivot support, having a distal end for supporting equipment and a proximal end. The pivot support is pivotally connected to the base frame at a pivot joint at the proximal end and is pivotable between a substantially upright position in the extended configuration and a transverse position in the contracted configuration. A retractable locking member is provided at the proximal end of the pivot support adjacent to the pivot joint. The locking member is adapted to be extended from the proximal end and secured to the base frame in the extended configuration and to be retracted in the contracted configuration.