The response time of the sensors directly depends on the air flow of the surrounding environment. The more the air is moving, the shorter is the response time. In environments with still air, it will take a maximum period of 30 minutes until the sensors exactly return the ambient temperature and relative humidity conditions.

No. The current consumption of the data logger is very low (normally less than 15mW). The potential self-heating of the device is significantly lower than 0.1°C, which is less than the accuracy of the temperature sensor (0.4°C).

Yes. The data logger can be configured (through the MOUSE-E-MOTION Excel add-in) to not emit any light (LED-) signals during logging operation. However, no distinction between the operational modes “powered off” and “logging” is possible any longer then. Hence, it is impossible to control if the device is properly operating in this case.

Yes. It is possible to configure the data logger with an initial delay period passing between starting the device and the actual beginning of logging, as well as to set up a particular start time (up to 100 days in the future) and/or a limited duration of logging or a defined end time (configuration through the MOUSE-E-MOTION Excel add-in). This is helpful if several devices should start with logging at exactly the same time. The internal real time clocks of the data loggers can be synchronized with an internet time server in advance to absolutely match each other.

Yes. The basic functions start logging, stop logging, delete data and data output can be put into operation via the buttons of the device. (Changing the configuration of the device, however, is only possible with a PC using the MOUSE-E-MOTION Excel add-in.)

Yes. The data acquisition is achieved through the MOUSE-E-MOTION add-in for Microsoft Excel. Thus, the data can be stored as an Excel file or exported to any other format supported by Excel, e.g. CSV (comma separated values) which can be read by most spreadsheet or scientific programs. Additionally, the unprocessed log data can be saved in their original format, a CSV-like text format.Actimetrics, supplier of the program ClockLab, has developed a macro solution for Microsoft Excel which converts log data from the MOUSE-E-MOTION Universal Data Logger directly into the ClockLab format.

Yes, if certain prerequisites are matched. The light sensor is not calibrated and because of the sunken location in the data logger the measured light intensity values are attenuated by a specific factor different for each particular device. So the measured values are not correct absolute values of light intensity. If such values are wanted, it would be necessary, for each particular data logger, to determine the proportion of the light sensor’s values to reference values measured with a separate lux meter. If the proportion is known, a quantitative measurement of light intensity is possible on condition that the data logger is exactly re-positioned.

Yes. If pulsing light occurs in the experimental environment, the reading rate of the data logger should be adjusted to the half of the duration of a light pulse (or the reading rate should be twice as long as a light pulse, respectively) to ensure complete detection of the light intensity of a pulse. If the duration of a light pulse is shorter than the interval granularity period, an average value resulting from a light fraction representing the light pulse and a dark fraction representing the time between the pulses will occur. Thus, this value does not denote the light intensity of the light pulse nor the light intensity of the dark period between the pulses.