Dataloggers Data Acquisition

 
General Tools CDM77535 - CO2 Handheld Digital Humidity and Temperature Meter
  • Max Temperature: 140 F (60 CWhat's This?)
  • Min Temperature: 14 F
  • Power Source: AC Line, Battery
  • Battery Life: 24 HR
  • Input Source (Probe): External Probe
  • # Data Points: 9600

List Price: $408.38

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General Tools DL8835 - Humidity Dataloggers - Max Temperature 185F
  • Max Temperature: 185 F (85 CWhat's This?)
  • Min Temperature: -40 F
  • # Data Points: 15999
  • SAMPLE RATE/Intervals: 1K/2K/4K/8K/16K
  • Accuracy: Temp.:+ 0.6oC(-20~50oC) , +1.2oC(-40~-20oC,51~85oC) o RH% +3% at 25 C
  • LCD Screen: Yes

List Price: $132.73

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General Tools DT4208SD - 12-Channel Thermocouple Thermometer with Excel-formatted Data Logging 3092 F
  • Type (Temperature): E, J, K, Other, S, T
  • Max Temperature: 3092 F (1700 CWhat's This?)
  • Min Temperature: -148 F
  • Power Source: AC Line
  • Accuracy: With Types K, J, T and E thermocouples:
    ± (0.4% of reading + 2.0ºF max)
    With Types R and S: ±(0.5% of reading + 2.0ºF)
  • LCD Screen: Yes

List Price: $1,020.00

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General DT4947SD - Data Logging 4 Channel Thermometer with SD Card, Max Temperature 3092°F
  • Type (Temperature): E, J, K, Other, S, T
  • Max Temperature: 3092 F (1700 CWhat's This?)
  • Min Temperature: -148 F
  • Power Source: AC Line
  • Accuracy: For Pt 100 ohm probes: ± (0.4% of reading + 1.8ºF)
    from -327º to 999.9ºF, ± (0.4% of reading + 2.0ºF)
    from 1000º to 1562ºF); for thermocouples:
    ± (0.4% of reading + 2.0ºF max)
  • LCD Screen: Yes

List Price: $306.30

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General Tools HT08 - USB Humidity Temperature GPP Mini Data Logger, Maximum Temperature 158°F
  • Unique Features: Measures Temperature and RH
  • Warranty: 1 YEARS
  • Warranty Details: N/A
  • Comments: N/A
  • Safety Approval: N/A
  • Interfaces I/O: USB

List Price: $70.18

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General Tools HT20 - USB Temperature Humidity GPP Data Logger with LCD
  • Max Temperature: 70 C
  • Min Temperature: -4 F
  • LCD Screen: Yes
  • RH: 100 %
  • Warranty: 1 YEARS
  • Product Weight: 0.1 LBS

List Price: $93.12

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General Tools HT50 - USB Temperature- Humidity Data Logger with LCD and IRT
  • Power Source: Battery
  • Warranty: 1 YEARS
  • Product Weight: 200 GRAMS (0.441 LBSWhat's This?)
  • Product Height: 0.91 IN
  • Product Length: 4.92 IN
  • Product Width: 1.69 IN

List Price: $164.67

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General Tools LRTH185DL - Data Logging Temperature Humidity Monitor With Jumbo Display, -4° to 140°F
  • Max Temperature: 60 C
  • Min Temperature: -4 F
  • Power Source: AC Line, Battery
  • SAMPLE RATE/Intervals: Once per second
  • LCD Screen: Yes
  • Software Included: Yes

List Price: $917.89

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General Tools LRTH185DL1 - Data Logging Temperature Humidity Monitor With Jumbo Display and Remote Probe, -4° to 140°F
  • Max Temperature: 60 C
  • Min Temperature: -4 F
  • Power Source: AC Line, Battery
  • SAMPLE RATE/Intervals: Once per second
  • Accuracy: ±1.8°F (±1°C) from 32° to 104°F (0° to 40°C); ±3.6°F (±2°C) elsewhere in the range
  • Software Included: Yes

List Price: $1,020.00

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General Tools PM930SD - Data Logging Pressure Meter w/SD Card
  • Warranty: 1 YEARS
  • Storage: SD Card
  • Product Weight: 0.77 LBS
  • Product Height: 1.77 IN
  • Product Length: 6.97 IN
  • Product Width: 2.68 IN

List Price: $403.69

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Dataloggers Data Acquisition

Dataloggers (or Data Logger, Data Recorder, Data Acquisition) refers to electronics designed to capture analog signals or measurements 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 option
  • Optional Outputs. More advanced units may have alarm relays or can re-transmit signals to other equipment
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.

What is the difference between data logging and data acquisition or data recording?

Data logging is a subset of data acquisition/data recording. While some may use the terms interchangeably, there are differences. Here is a list of notable differences. Of course, there will be exceptions, but dataloggers or data recorders will have most of the characteristics from their respective list below:

Typical datalogger characteristics
USBdatalogger
  • Handheld or portable instruments
  • Many have a built-in sensor
  • Measuring one or two variables
  • Slow rates compared to data recorders.
Typical data acquisition system and data recorder characteristics

DAX-network
  • Bench instruments
  • Imagine digital replacements of the paper chart recorder
  • Sampling rates better than 1 Hz
  • Multi-channel capabilities from 1-2 to hundreds
  • Have a built in real-time clock for more accurate time stamps
  • Often have network connectivity
  • Many are AC powered and built to withstand power fluctuations and continue logging
  • May have a local display replacing the traditional paper chart. These are called videographic recorders
 
Here are a couple videos about various data loggers
 


 
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