LOGBOX SE Data Logger

The LOGBOX SE from Kipp & Zonen is a data logger loaded with analog, digital and Modbus® inputs that enable connections to multiple instruments simultaneously. It is possible to convert every input into engineering units. The information can be stored on an SD memory card. 512 MB is set as the standard capacity with facilities to expand the storage to 4 GB.

  • Four differential and four single-ended analog inputs, four digital inputs
  • Comes with a 4G LTE modem with an external antenna
  • Facilitates the connection of up to eight compatible Modbus® devices
  • Enables data transfer to an e-mail address or FTP server

Collecting meteorological parameters is an amalgamation of measuring instruments, like a pyranometer and a data logger. However, it is necessary to ensure that the logger performance does not affect the measurement made by the instrument. The LOGBOX SE is an optimum logger for several applications in meteorology, climatology, solar energy, hydrology and agronomy.

The low-level milli-volt outputs of the passive instruments need precise analog-to-digital conversion and the four 24-bit high-resolution differential analog inputs of the LOGBOX SE. It is simple to configure these values and they can be employed in Pt-100 temperature sensors installed in some of the company’s models.

The four 12-bit single-ended analog inputs are generally applied in instruments with amplified outputs and for 10 K thermistor temperature sensors. Two 10 K Ω and one 100 Ω accurate resistors are added for NTC or Pt100 temperature measurements.

Four digital inputs are available for quantifying time or frequency or as counter inputs. The inputs can be applied to measure the fan speed of the ventilation units or to combine sunshine duration from the CSD3. A Modbus®-enabled RS-485 serial input port facilitates the logging of data from up to eight of the company’s Smart radiometers, including SMP, SHP, SGR and SUV models.

The RT1, DustIQ, Lufft WS-UMB all-in-one weather station and the Ingenieurbüro Mencke & Tegtmeyer (IMT) Modbus® silicon sensor can also be operated. The Smart Hub and Smart Powered Hub are ideal for connecting multiple Modbus® devices to the LOGBOX SE and powering them.

The LOGBOX SE is loaded with an IP 65 weatherproof enclosure and a broad operating temperature, ranging from −40 °C to +60 °C. The state-of-the-art design requires only minimal power but operates for weeks using the six internal AA-type batteries.

A broad variety of DC power sources can be used, and it is possible for the logger to manage the power from the solar panel and charge an external battery. All these aspects enable months of unattended operation in remote locations.

The LOGBOX SE is loaded with the Windows™ software to facilitate fast and easy configuration and data download, using RS-232 serial communication or the internal USB port. Input channels are programmed using a voltage range and defining the calculation to convert measurements to engineering unit values, which also include polynomial functions. Non-volatile internal memory is used to hold the data logger program.

The sampling rate or the measurement interval can be ranged down to 1 second. Similarly, the logging interval can also be down to 1 second. However, the values are usually 1 minute and include the average, minimum, maximum and standard deviation of the measurement values. The LOGBOX SE can comply with the demands of the Baseline Surface Radiation Network (BSRN).

The original LOGBOX SE is equipped with a GSM/GPRS quad-band 2G modem with an external antenna. A 4G LTE modem introduced in 2019 accepts a full-size SIM card that can enable the transfer of logged data at a selectable interval, from 0.1 to 24 hours to a preassigned e-mail address or FTP server.

The LOGBOX SE has a battery-backed real-time clock with the capability to be synchronized daily with a time server if the data service is supportive. The logger comes with a mounting bracket and clamps for installing poles up to 50-mm diameter.


Source: Kipp & Zonen

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Analog inputs 4 differential 24-bit and 4 single-ended 12-bit
Input ranges 19 mV to 2.5 V differential, 2 x 2.5 V and 2 x 3 V single-ended
Accuracy 0.05% for 24-bit, 0.1% for 12-bit
Digital inputs 4, maximum input 15 V, logic levels 3 x 3 V and 1 x 0.5 V
Serial input RS-485 port for up to 8x compatible Modbus® devices from Kipp & Zonen, Lufft or IMT
Supply voltage DC 6 x AA internal batteries or external supply 4 to 24 V
Solar power Regulates 12-20 V from solar panel and charges 12 V lead acid battery
Power consumption 1 mA standby, 7 mA typical during measurement, 50 mA with modem on
Memory card type SD card (512 MB included)
Communication RS-232, USB, quad-band GSM / GPRS modem with external antenna

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