Did you know that Comet exists in a US version as well?

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manufacturer of measuring instruments
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Event data logger

Four-channel data logger is designed for record of two-state events. Values are stored to a non volatile electronic memory. Data transfer to the personal computer for further analysis is performed via USB, RS232, GSM or Ethernet interface by means of a proper communication adapter.

The device includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

For communication with the PC must be from Optional accessories ordered USB adapter or COM adapter or start/stop magnet if is needed to control logging the other way than directly from computer.



  • code
  • Warranty
    3 years

Technical data


Vstupní signály from potential - less contact or two - state voltage signal
Terminal block input signals removable WAGO 734, Maximum lead cross section 1.5 mm2
Connector for connection of input signals CYESN 9 pins


Operating temperature -30 to +70 °C
Channels 4x binary input
Memory 16,000 values
Recording interval adjustable from 10 s to 24 h
Display and alarm refresh each 5 s
Recording mode noncyclic - data logging stops after filling the memory
cyclic - after filling memory oldest data is overwritten by new
Real time clock year, leap year, month, day, hour, minute, second
Power lithium battery 3.6 V; size AA
Battery life 5 years
Protection class IP20
Dimensions (without connectors) 93 x 64 x 29 mm
Weight (including batteries) approx. 115 g
Warranty 3 years