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4-20mA Data Loggers & Sensors

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Results: 1 to 16 of 16



HOBO Micro Station Data Logger - H21-002
4-external channels
  • Supported Measurements (sensors sold separately):
    Weather: Barometric Pressure, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall See more, Relative Humidity, Soil Moisture, Solar Radiation, Temperature, Wind Speed & Direction, 4-20mA, Voltage Input See less
    Energy: DC Voltage, kWh, Pulse Input, Relative Himidity, Temperature, Water Flow, 4-20mA
  • Range:
    -20° to 50°C (-4° to 122°F) with alkaline batteries
    -40° to 70°C (-40° to 158°F) with lithium batteries
  • Accuracy: 0 to 2 seconds for the first data point and ±5 seconds per week at 25°C (77°F)

$220



HOBO Energy Logger - H22-001
multi-channel data logger
  • Supported Measurements (sensors sold separately):
    Temperature, Relative Humidity, 4-20mA, AC Current, AC Voltage, Air Velocity See more, Amp Hour (Ah), Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatt Hours (kWh), Kilowatts (kW), Power Factor (PF), Pulse Input, Volatile Organic Compound, Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Water Flow, Watt Hours (Wh), Watts (W), Wind See less
  • Range:
    -20° to 50°C (-4° to 122°F) with alkaline batteries
    -40° to 60°C (-40° to 140°F) with lithium batteries
  • Accuracy: 0 to 2 sec for the first data point and ±5 sec per week at 25°C (77°F)

$315



HOBO U12 4-Channel External Data Logger - U12-006
  • Supported Measurements (some sensors sold separately):
    Temperature, 4-20mA, AC Current, AC Voltage, Air Velocity, Carbon Dioxide See more, Compressed Air Flow, DC Current, DC Voltage, Gauge Pressure, Kilowatts (kW), Volatile Organic Compound See less
  • Range: 0 to 2.5 VDC
  • Accuracy: ± 2 mV ± 2.5% of absolute reading

$108



HOBO U12 4-Channel External Data Logger - U12-008
  • Supported Measurements (sensors sold separately):
    Temperature, 4-20mA, AC Current, AC Voltage, Air Velocity, Carbon Dioxide See more, Compressed Air Flow, DC Current, DC Voltage, Gauge Pressure, Kilowatts (kW), Volatile Organic Compound See less
  • Range: 0 to 2.5 VDC
  • Accuracy: ± 2 mV ± 2.5% of absolute reading

$215



HOBO U12 Temperature/Relative Humidity/Light/External Data Logger - U12-012
  • Supported Measurements (some sensors sold separately):
    Temperature, Relative Humidity, 4-20mA, AC Current, AC Voltage, Air Velocity See more, Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Gauge Pressure, Kilowatts (kW), Light Intensity, Volatile Organic Compound See less
  • Range: Temp: -20° to 70°C (-4° to 158°F) - RH: 5% to 95% Light intensity: 1 to 3000 foot candles (lumens/ft2)
    External input: 0 to 2.5 VDC

  • Accuracy: Temp: ± 0.4°C @ 25°C (± 0.7°F @ 77°F) - RH: ± 2.5% from 10% to 90% - External Input: ± 2 mV ± 2.5% of absolute reading
  • Replacement for: H08-004-02, H08-006-04

$133



HOBO U12 Temperature/Relative Humidity/2 External Channel Data Logger - U12-013
  • Supported Measurements (some sensors sold separately):
    Temperature, Relative Humidity, 4-20mA, AC Current, AC Voltage, Air Velocity See more, Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Gauge Pressure, Kilowatts (kW), Volatile Organic Compound See less
  • Range: Temp: -20° to 70°C (-4° to 158°F) - RH: 5% to 95% - External input channels: 0 to 2.5 VDC
  • Accuracy: Temp: ± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F) - RH: ± 2.5% from 10% to 90% - External Input: ± 2 mV ± 2.5% of absolute reading

$133



HOBO® U30 Ethernet Data Logger - U30-ETH
15 Channel Web-based Monitoring System
  • Supported Measurements (sensors sold separately):
    Weather: Barometric Pressure, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall See more, Relative Humidity, Soil Moisture, Solar Radiation, Temperature, Wind Speed & Direction, 4-20mA, Voltage Input See less
    Energy: AC Current, AC Voltage, Air Velocity, Amp Hour (Ah), Carbon Dioxide, Compressed Air Flow See more, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, kW, kWh, Power Factor (PF), Pulse Input, Relative Himidity, Temperature, Volatile Organic Compound (VOC), Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Water Flow, Watt Hours (Wh), Watts (W), 4-20mA, Amps (A) See less
  • Range: -20°C to 40°C (-4°F to 104°F)
  • Accuracy: 0 to 2 seconds for the first data point
    ±5 seconds per week at 25°C (77°F)


Need Help?
Call 1-800-564-4377 or
Chat Live Now.



HOBO U30 Cellular Data Logger - U30-GSM
15 Channel Web-based Monitoring System
  • Supported Measurements (sensors sold separately):
    Weather: Barometric Pressure, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall See more, Relative Humidity, Soil Moisture, Solar Radiation, Temperature, Wind Speed & Direction, 4-20mA, Voltage Input See less
    Energy: AC Current, AC Voltage, Air Velocity, Amp Hour (Ah), Carbon Dioxide, Compressed Air Flow See more, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, kW, kWh, Power Factor (PF), Pulse Input, Relative Himidity, Temperature, Volatile Organic Compound (VOC), Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Water Flow, Watt Hours (Wh), Watts (W), 4-20mA, Amps (A) See less
  • Range: -20°C to 40°C (-4°F to 104°F)
  • Accuracy: 0 to 2 seconds for the first data point
    ±5 seconds per week at 25°C (77°F)


Need Help?
Call 1-800-564-4377 or
Chat Live Now.



HOBO U30 USB Data Logger - U30-NRC
15 Channel Energy Monitoring and Weather Station
  • Supported Measurements (sensors sold separately):
    Weather: Barometric Pressure, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall See more, Relative Humidity, Soil Moisture, Solar Radiation, Temperature, Wind Speed & Direction, 4-20mA, Voltage Input See less
    Energy: AC Current, AC Voltage, Air Velocity, Amp Hour (Ah), Carbon Dioxide, Compressed Air Flow See more, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, kW, kWh, Power Factor (PF), Pulse Input, Relative Himidity, Temperature, Volatile Organic Compound (VOC), Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Water Flow, Watt Hours (Wh), Watts (W), 4-20mA, Amps (A) See less
  • Range: -20°C to 40°C (-4°F to 104°F)
  • Accuracy: 0 to 2 seconds for the first data point
    ±5 seconds per week at 25°C (77°F)


Need Help?
Call 1-800-564-4377 or
Chat Live Now.



HOBO U30 Wi-Fi Data Logger - U30-WIF
15 Channel Web-based Monitoring System
  • Supported Measurements (sensors sold separately):
    Weather: Barometric Pressure, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall See more, Relative Humidity, Soil Moisture, Solar Radiation, Temperature, Wind Speed & Direction, 4-20mA, Voltage Input See less
    Energy: AC Current, AC Voltage, Air Velocity, Amp Hour (Ah), Carbon Dioxide, Compressed Air Flow See more, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, kW, kWh, Power Factor (PF), Pulse Input, Relative Himidity, Temperature, Volatile Organic Compound (VOC), Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Water Flow, Watt Hours (Wh), Watts (W), 4-20mA, Amps (A) See less
  • Range: -20°C to 40°C (-4°F to 104°F)
  • Accuracy: 0 to 2 seconds for the first data point
    ±5 seconds per week at 25°C (77°F)


Need Help?
Call 1-800-564-4377 or
Chat Live Now.



HOBO ZW-005 Four-Channel Data Node
1 Temp, 1 RH, 1 Analog and 1 Pulse
  • Supported Measurements (some sensors sold separately):
    Temperature, Relative Humidity, 4-20mA, AC Current, AC Voltage, Air Velocity See more, Amp Hour (Ah), Amps (A), Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatt Hours (kWh), Kilowatts (kW), Power Factor (PF), Pulse Input, Volatile Organic Compound, Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Water Flow, Watt Hours (Wh), Watts (W) See less
  • Range:
    Temp: -40° to 70° C (-40° to 158° F)
    RH: 5 to 95% RH
    Analog channels: 0 to 2.5 Vdc;0 to 5 Vdc (w/CABLE-ADAP5); 0 to 10 Vdc (w/ CABLE-ADAP10; 4-20 mA (w/CABLE-4-20mA)
    Pulse channel: 0 to 65,535 pulses per logging interval
  • Accuracy: Temp: ± 0.2° C over 0° to 50° C (0.36° F over 32° to 122° F) - RH: ± 2.5% from 10 to 90% typical, max. +/- 3.5% - Analog: +/- 1.544 mV plus 2 % (typical)

$299



HOBO ZW-006 Four Analog Port Data Node
  • Supported Measurements (some sensors sold separately):
    Temperature, 4-20mA, AC Current, AC Voltage, Air Velocity, Carbon Dioxide See more, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatts (kW) See less
  • Range: Analog channels: 0 to 2.5 Vdc;0 to 5 Vdc (w/ CABLEADAP5); 0 to 10 Vdc (w/ CABLEADAP10); 4-20 mA (w/CABLE-4-20mA).
  • Accuracy: Analog: ± 1.544 mV plus 2 % of reading (typical)

$219



HOBO ZW-007 Two External Channel Data Node
External Temp/RH and 2 Analog
  • Supported Measurements (some sensors sold separately):
    Temperature, Relative Humidity, 4-20mA, AC Current, AC Voltage, Air Velocity See more, Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatts (kW), Volatile Organic Compound See less
  • Range:
    Temp: -40° to 70° C (-40° to 158° F)
    RH: 5 to 95% RH
    Analog channels: 0 to 2.5 Vdc; 0 to 5 Vdc (w/ CABLEADAP5); 0 to 10 Vdc (w/ CABLEADAP10); 4-20 mA (w/CABLE-4-20mA).
  • Accuracy:
    Temp: ± 0.2° C over 0° to 50° C (0.36° F over 32° to 122° F) - RH: ± 2.5% from 10 to 90% typical, max. ± 3.5%
    Analog: ±1.544 mV plus 2 % of reading (typical)

$299



data node – Temp/RH/2 External Channels - ZW-007-EU
EU version
  • Supported Measurements:
    Temperature, Relative Humidity, 4-20mA, AC Current, AC Voltage, Air Velocity See more, Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatts (kW), Volatile Organic Compound See less
  • Range: Temp: -40° to 70° C (-40° to 158° F)
    RH: 5 to 95% RH
    Analog channels: 0 to 2.5 Vdc; 0 to 5 Vdc (w/ CABLEADAP5); 0 to 10 Vdc (w/ CABLEADAP10); 4-20 mA (w/CABLE-4-20mA).
  • Accuracy: Temp: ± 0.2° C over 0° to 50° C (0.36° F over 32° to 122° F)
    RH: ± 2.5% from 10 to 90% typical, max. ± 3.5%
    Analog: ±1.544 mV plus 2 % of reading (typical)

$299



HOBO ZW-008 Four External Channel Data Node
External; 2 Analog and 2 Pulse
  • Supported Measurements (some sensors sold separately):
    Temperature, 4-20mA, AC Current, AC Voltage, Air Velocity, Amp Hour (Ah) See more, Amps (A), Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatt Hours (kWh), Kilowatts (kW), Power Factor (PF), Pulse Input, Volatile Organic Compound, Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Water Flow, Watt Hours (Wh), Watts (W) See less
  • Range: Analog channels: 0 to 2.5 Vdc; 0 to 5 Vdc (w/ CABLEADAP5); 0 to 10 Vdc (w/ CABLEADAP10); 4-20 mA (w/CABLE-2.5-STEREO)
    Pulse channel: 0 to 65,535 pulses per logging interval
  • Accuracy: Analog: ± 1.544 mV plus 2% of reading (typical)

$219



data node – 4 External Channels - ZW-008-EU
EU version
  • Supported Measurements:
    Temperature, 4-20mA, AC Current, AC Voltage, Air Velocity, Carbon Dioxide See more, Compressed Air Flow, DC Current, DC Voltage, Differential Pressure, Gauge Pressure, Kilowatt Hours (kWh), Kilowatts (kW), Pulse Input, Volatile Organic Compound, Water Flow See less
  • Range: Analog channels: 0 to 2.5 Vdc; 0 to 5 Vdc (w/ CABLEADAP5); 0 to 10 Vdc (w/ CABLEADAP10); 4-20 mA (w/CABLE-2.5-STEREO)
    Pulse channel: 0 to 65,535 pulses per logging interval
  • Accuracy: Analog: ± 1.544 mV plus 2% of reading (typical)

$219

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