The HL4108 data logger is one of a new range of advanced temperature and humidity loggers. They allow wire-free monitoring of a site, with visual alarm notification and historical analysis of data. Each hl4108 unit reads its onboard sensors to provide accurate and reliable information about environmental conditions. This data is stored internally in non volatile memory, at user-defined intervals. The data can be downloaded when convenient to Hanwell's logging software (Hanlog) where it is filed for later analysis.
The hl4108 has three sensors as standard:
an internal precision temperature probe
a high quality humidity probe and
an additional surface temperature probe to check the dew point margins.
These sensors can be calibrated by the users or at Hanwell's in-house calibration laboratory. The logger ID and logging rate are set in the hl4108 using the Hanlog software and a USB cable. Each unit has an LCD screen simultaneously displaying the most recent readings taken and the predicted battery life.
The hl4108 is powered by a single 3.6V AA Lithium battery, which can be fitted by the user. The battery life will be dependent on the logging rate set. An indicator on the LCD will warn when the battery is low, and the hl4108 maintains a record of when the battery was last changed.
The moulded case allows easy access to the battery and USB socket, as well as having slots to fit onto secure wall brackets and a plain front panel to hide the LCD
if more discreet monitoring of public areas is desired. Suitable for indoor use only.
The hl4000 range has been designed to comply with the RoHS and WEEE EU directives, and carries the CE mark.directives, and carries the CE mark.