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Dataloggers for Environmental Variables

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U20-001-04-Ti U20-001-04-Ti

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HOBO by Onset U20-001-04-Ti - 13-Foot Depth Titanium Water Level Data Logger
  • Unique Features: Lightning protection - no long signal wires, and electronics are shielded in a titanium housing for use in saltwater 0-4 m (0-13 ft) 0-145 kPa (0-21 psia)
  • Warranty: N/A
  • Warranty Details: N/A
  • Comments: N/A
  • Safety Approval: CE
  • Interfaces I/O: N/A

Your Price: $739.00

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U20L-02 U20L-02

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HOBO by Onset U20L-02 - Water Level (100ft) Data Logger
  • Unique Features: Self-contained non-vented design enables easy deployment Ideal for use in both fresh and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas Depths up to 100 feet
  • Warranty: N/A
  • Warranty Details: N/A
  • Comments: N/A
  • Safety Approval: CE
  • Interfaces I/O: N/A

Your Price: $375.00

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U23-001A U23-001A

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HOBO by Onset U23-001A - Temperature/Relative Humidity Data Logger
  • Type (Temperature): N/A
  • Max Temperature: 70 C
  • Min Temperature: -40 C (-40 FWhat's This?)
  • Power Source: Battery
  • Battery Life: 3 YEARS (26280 HRWhat's This?)
  • Input Source (Probe): N/A

List Price: $225.00

Your Price: $224.44

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U23-003 U23-003

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HOBO by Onset U23-003 External Temperature Data Logger
  • Type (Temperature): N/A
  • Max Temperature: 70 C
  • Min Temperature: -40 C (-40 FWhat's This?)
  • Power Source: Battery
  • Battery Life: 3 YEARS (26280 HRWhat's This?)
  • Input Source (Probe): N/A

List Price: $259.00

Your Price: $258.35

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U23-004 U23-004

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HOBO by Onset U23-004 External Temperature Data Logger
  • Type (Temperature): N/A
  • Max Temperature: 70 C
  • Min Temperature: -40 C (-40 FWhat's This?)
  • Power Source: Battery
  • Battery Life: 3 YEARS (26280 HRWhat's This?)
  • Input Source (Probe): N/A

List Price: $195.00

Your Price: $194.51

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U24-001 U24-001

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HOBO by Onset U24-001 Conductivity Data Logger
  • Unique Features: Provides easy access to sensor for cleaning and shedding air bubbles HOBOware Pro software enables start/end-point calibration to compensate for any fouling and provides easy conversion to specific conductance and salinity USB optical interface provides high-speed, reliable data offload in wet environments
  • Warranty: N/A
  • Warranty Details: N/A
  • Comments: N/A
  • Safety Approval: CE
  • Interfaces I/O: USB

Your Price: $985.00

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U2422 U2422

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Comet U2422 - Datalogger for External CO2 Probe (up to 10,000ppm), Built-in Atmospheric Pressure Sensor
  • Unique Features: CO2 measurement range: 0 to 10,000 ppm CO2 measurement accuracy: 100 ppm + 5% of the measured value at 23 °C a 1 013 hPa Atmospheric pressure measurement range: 600 to 1100 hPa Atmospheric measurement accuracy: ±1.3 hPa at 23 °C from 800 to 1100 hPa
  • Warranty: 3 YEARS
  • IP Rating: IP54
  • Product Weight: 0.57 LBS
  • Product Height: 93 MM (3.66 INWhat's This?)
  • Product Length: 53 MM (2.09 INWhat's This?)

Your Price: $520.00

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U3120 U3120

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Comet U3120 - Temperature and Humidity Data Logger with Built-in Sensors
  • Max Temperature: 70 C
  • Min Temperature: -30 C (-22 FWhat's This?)
  • Accuracy: ±1.5 °C at ambient temperature T <25 °C and RH >30%
  • Software Included: Yes
  • Warranty: 3 YEARS
  • Interfaces I/O: USB-C

Your Price: $476.00

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U3120G U3120G

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Comet U3120G - IoT Wireless Temperature/Relative Humidity Datalogger with Built-in 4G Modem
  • Type (Temperature): N/A
  • Max Temperature: 60 C
  • Min Temperature: -20 C (-4 FWhat's This?)
  • Power Source: Battery
  • Battery Life: N/A
  • Input Source (Probe): Internal Probe

Your Price: $1,112.00

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U3120Gsim U3120Gsim

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Comet U3120Gsim - IoT Wireless Temperature and Relative Humidity Datalogger with Built-in 4G Modem and Flat Rate SIM Card
  • Type (Temperature): Other
  • Max Temperature: 60 C
  • Min Temperature: -20 C (-4 FWhat's This?)
  • Power Source: Battery
  • Input Source (Probe): Internal Probe
  • # Inputs/Channels: 1

Your Price: $1,162.00

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U3120M U3120M

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Comet U3120M - IoT Wireless Temperature and Relative Humidity Datalogger, with Built-in GSM Modem
  • Max Temperature: 60 C
  • Min Temperature: -20 C (-4 FWhat's This?)
  • Accuracy: ±1.5 °C at ambient temperature T <25 °C and RH >30%
  • Software Included: Yes
  • Warranty: 3 YEARS
  • Interfaces I/O: USB-C

Your Price: $1,058.00

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U3120Msim U3120Msim

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Comet U3120Msim - IoT Wireless Temperature and Humidity Datalogger with Built-in Sensor, GSM Modem, Flat Rate SIM Card
  • Type (Temperature): Other
  • Max Temperature: 60 C
  • Min Temperature: -20 C (-4 FWhat's This?)
  • Power Source: Battery
  • Input Source (Probe): Internal Probe
  • # Inputs/Channels: 1

Your Price: $1,108.00

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Recommended for you

Dataloggers for Environmental Variables

Environmental Datalogger (or Data Logger, Data Recorder, Data Acquisition) refers to electronics designed to capture environmental variables such as temperature and humidity over time for study and review later.

Benefits of Dataloggers/Data Recorders
  • Quiet, unattended 24/7 operation
  • Simple to setup and operate. Many portable models available
  • Wide variety of measurement types and measurement speeds possible
  • Help troubleshoot and identify problems in many fields
  • Steady declining cost
Parts of a Datalogger/Data Recorder
  • Built in sensor, such as temperature, or electrical terminals to connect an external one
  • A/D or analog to digital converter and signal conditioning electronics
  • Non-volatile storage memory for the collected data and a method to specify the storage rate and on some models the scan interval
  • PC Communications or other method to move the data to a computer and to configure the unit
  • Optionally a local display and keypad. Not always needed, so “blind” units are a cost saving
My handheld Digital Thermometer logs so is it considered a Datalogger?

For our website purposes, no. We further classify data logging instruments as dedicated to data logging. Typically they will be “blind”, i.e. no display or buttons, and intended for long term unattended operation. A handheld digital thermometer will have a host of other features, one of which may optionally be to record data. We have categorized these measuring instruments here Products > Thermometers.
 
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