An enclosed space monitoring system includes a controller and a plurality of sensors. The sensors may include a humidity sensor, a water presence sensor, a water pump operation sensor, a temperature sensor, a radon gas detector, a propane or natural gas detector, a smoke sensor, a carbon monoxide detector and a motion sensor. Environmental parameter data obtained by the sensors is stored within a memory connected to the controller. The controller sends the data to a remote facility periodically and/or when the data indicates a potential condition within the space needing attention or remediation. The sent data is stored at the remote facility and may be accessed by a technician or an owner of the space. Also, the data may be comparatively studied relative to earlier data from the same space and to data collected in similar spaces to discern a potential condition needing attention or remediation.