2 Channel temperature logger -40 - + 110 ° C, Wifi, Bluetooth, USB, 2 external temperature sensors

16-bit 4-20mA to-digital converter
Temperature Compensated AD converter to 4 Megabyte memory to log data
USB and RS232, automatic baud rate up to 115.2kbit
Input ranges (4-20mA version with 0-50mA)
Battery operation - 10 year battery
, if you acquire: Software for configuring, downloading, graphing, analysis and alarm reporting (not included)
Configurable alarm controls / overvoltage control
measurement speed from 20 milliseconds ( 1 channel) to 12 hours
Robust aluminum housing
coated printed circuit board for protection against moisture, corrosion

Base unit with display and optical communication
Jig for programming T&D data loggers
Jig for collecting stored log data from T&D data loggers
USB connection to PC
Free software for PC
Battery operation - Operating time approx. 100 days
OPTIONAL: AC adapter is acquired 6VDC, 3.5 / 1.5 mm plug
Dim: 125 x 58 x 26 mm
Weight: 90 g

RS485 / RS422 / RS232 Master Gateway to Meter-Bus Slaves (sensors, actuators, etc.)
Supports up to 100 Meter-Bus meters (slaves)
MODBUS RTU function codes: 0x03 and 0x04 readdata
Selection of serial port, only one can be selected to be active
Baud rate x 2 (M-bus and COM port can be selected at different speeds)
Baud rate M-bUS: 300-2400 bps
Baud rate COM port: 300-115200 bps
Transparent data - no protocol conversion
M-BUS connection, 2-wire, max. 350meter.
Greater distance up to 5km requires a number M-bus repeaters
Supply voltage: 10 - 30VDC, 1.8 - 12Watt
Dimensions: 122 x 72 x 33 mm
Removable terminal blocks
Operating temperature: -25 - + 60°C
DIN mount 
Robust plastic case

Stand-Alone Temperature data logger
memory for 16,000 measurements
Use eg. Log-50U for setup and emptying
Log interval: 1 second to 60 minutes in 15 Step
Battery life: Depending on log interval
Typical battery life: 2 - 4 years
Dim: 62 x 47 x 19 mm
Weight: 45 g
Operating temperature for data logger: -40 - +80°C
IP64