Time-of-Use Data Loggers

  • LCD displays On-time or % On, providing instant feedback
  • Auto-calibration & signal strength indicator ensure proper deployment
  • 84k or 346k measurement capacity enables longer deployments with fewer site visits
  • Rare Earth Magnets, 3M Command™ Strips or mounting tabs for reliable mounting
  • Flexible logger Start and Stop options
  • HOBOware® Pro’s time-saving features allow for easy set-up of hundreds of loggers
UX90 Time-of-use Data Loggers including

How It Works




HOBO UX90 State Logger - UX90-001

part # UX90-001 (View Specs)
  • Supported Measurements:
    Event, Kilowatt Hours (kWh), Motor On/Off, Pulse Input, Runtime, State Open/Closed, Water Flow
  • One logger with 4 recording modes
  • Internal reed switch can be used to determine when a door or window is open or closed
  • Compatible with a wide range of external sensors
  • Ships with 2.5 mm input cable
  • Replacement for: H06-001-02, U9-001
$85
1-9 10-99 100+
$85 $79 $72



HOBO UX90 State Logger - UX90-001M
Extended Memory

part # UX90-001M (View Specs)
  • Supported Measurements:
    Event, Kilowatt Hours (kWh), Motor On/Off, Pulse Input, Runtime, State Open/Closed, Water Flow
  • One logger with 4 recording modes
  • Internal reed switch can be used to determine when a door or window is open or closed
  • Compatible with a wide range of external sensors
  • Ships with 2.5 mm input cable
  • Replacement for: H06-001-02, U9-001
$110
1-9 10-99 100+
$110 $102 $94



HOBO UX90 Light On/Off Data Logger - UX90-002

part # UX90-002 (View Specs)
  • Supported Measurements:
    Light On/Off
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • User adjustable sensitivity control for low/high light level conditions
  • Optional light pipe eliminates effects of ambient sunlight or other
    lighting sources
  • Replacement for: H06-002-02, U9-002
$85
1-9 10-99 100+
$85 $79 $72



HOBO UX90 Light On/Off Data Logger - UX90-002M
Extended Memory

part # UX90-002M (View Specs)
  • Supported Measurements:
    Light On/Off
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • User adjustable sensitivity control for low/high light level conditions
  • Optional light pipe eliminates effects of ambient sunlight or other
    lighting sources
  • Replacement for: H06-002-02, U9-002
$110
1-9 10-99 100+
$110 $102 $94



HOBO UX90 Motor On/Off Logger - UX90-004

part # UX90-004 (View Specs)
  • Supported Measurements:
    Motor On/Off, Runtime, State Open/Closed
  • Dual internal motor sensors gives better sensitivity for well shielded motors
  • External input for measuring mechanical contact closures when signal strength is low
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • Replacement for: H06-004-02, U9-004
$85
1-9 10-99 100+
$85 $79 $72



HOBO UX90 Motor On/Off Logger - UX90-004M
Extended Memory

part # UX90-004M (View Specs)
  • Supported Measurements:
    Motor On/Off, Runtime, State Open/Closed
  • Dual internal motor sensors gives better sensitivity for well shielded motors
  • External input for measuring mechanical contact closures when signal strength is low
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • Replacement for: H06-004-02, U9-004
$110
1-9 10-99 100+
$110 $102 $94



HOBO UX90 Room Occupancy/Light Logger - UX90-005
5 Meter Sensor

part # UX90-005 (View Specs)
  • Supported Measurements:
    Light On/Off, Occupancy
  • Measures occupancy up to 5 meters away
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • LCD screen displays signal strength, enabling proper logger placement
  • Optional light pipe eliminates effects of ambient sunlight or other lighting sources
$199
1-9 10-99 100+
$199 $184 $169



HOBO UX90 Occupancy/Light Logger - UX90-005M
5 Meter Sensor - Extended Memory

part # UX90-005M (View Specs)
  • Supported Measurements:
    Light On/Off, Occupancy
  • Measures occupancy up to 5 meters away
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • LCD screen displays signal strength, enabling proper logger placement
  • Optional light pipe eliminates effects of ambient sunlight or other lighting sources
$224
1-9 10-99 100+
$224 $207 $190



HOBO UX90 Occupancy/Light Logger - UX90-006
12 Meter Sensor

part # UX90-006 (View Specs)
  • Supported Measurements:
    Light On/Off, Occupancy
  • Measures occupancy up to 12 meters away
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • LCD screen displays signal strength, enabling proper logger placement
  • Optional light pipe eliminates effects of ambient sunlight or other lighting sources
$199
1-9 10-99 100+
$199 $184 $169



HOBO UX90 Occupancy/Light Logger - UX90-006M
12 Meter Sensor - Extended Memory

part # UX90-006M (View Specs)
  • Supported Measurements:
    Light On/Off, Occupancy
  • Measures occupancy up to 12 meters away
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • LCD screen displays signal strength, enabling proper logger placement
  • Optional light pipe eliminates effects of ambient sunlight or other lighting sources
$224
1-9 10-99 100+
$224 $207 $190



HOBO 4-Channel Pulse Data Logger - UX120-017

part # UX120-017 (View Specs)
  • Supported Measurements (sensors sold separately):
    Energy: AC Current, AC Voltage, Amp Hour (Ah), kW, kWh, Power Factor (PF) See more, Pulse Input, Volatile Organic Compound (VOC), Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Watt Hours (Wh), Watts (W), Amps (A) See less
  • Simultaneously measures and records pulse signals, events, state changes, and runtimes
  • Stores up to over 500,000 measurements, enabling longer deployments with fewer site visits
  • Maximum pulse rate – 120 Hz
  • Pulse input range – 0 to 24VDC
Minimum System Requirements


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$195
1-9 10-99 100+
$195 $181 $166



HOBO 4-Channel Pulse Data Logger - UX120-017M

part # UX120-017M (View Specs)
  • Supported Measurements (sensors sold separately):
    Energy: AC Current, AC Voltage, Amp Hour (Ah), kW, kWh, Power Factor (PF) See more, Pulse Input, Volatile Organic Compound (VOC), Volt-Amp Reactive (VAR), Volt-Amp Reactive Hour (VARh), Volt-Amps (VA), Volts (V), Watt Hours (Wh), Watts (W), Amps (A) See less
  • Simultaneously measures and records pulse signals, events, state changes, and runtimes
  • Stores up to over 4 million measurements, enabling longer deployments with fewer site visits
  • Maximum pulse rate – 120 Hz
  • Pulse input range – 0 to 24VDC
Minimum System Requirements


View/Add Required Items
See Parts & Accessories
$295
1-9 10-99 100+
$295 $273 $251



HOBO U9 State Data Logger - U9-001

part # U9-001 (View Specs)
  • Supported Measurements:
    Motor On/Off, State Open/Closed
  • Internal magnetic reed switch
  • External sensor cable included (CABLE-2.5-STEREO)
  • Records up to 43,000 state changes
  • Optional AC Current Switch (CSV-A8) to measure Motor on/off
  • Includes mounting kit with magnet, hook and loop tape, 3/8" double-sided
Minimum System Requirements


View/Add Required Items
See Parts & Accessories
$85
1-9 10-99 100+
$85 $79 $72



HOBO U9 Light On/Off Data Logger - U9-002

part # U9-002 (View Specs)
  • Supported Measurements:
    Light On/Off
  • Monitors light on and off conditions and includes a user-adjustable sensitivity control.
  • Records up to 43,000 state changes
  • Includes mounting kit with magnet, hook and loop tape, 3/8" double-sided tape
Minimum System Requirements


View/Add Required Items
See Parts & Accessories
$79
1-9 10-99 100+
$79 $73 $67



HOBO U9 Motor On/Off Data Logger - U9-004

part # U9-004 (View Specs)
  • Supported Measurements:
    Motor On/Off
  • Internal AC magnetic field sensor monitors motor on and off conditions
  • Records up to 43,000 state changes
  • Includes mounting kit with magnet, hook and loop tape, 3/8" double-sided tape
Minimum System Requirements


View/Add Required Items
See Parts & Accessories
$85
1-9 10-99 100+
$85 $79 $72



HOBO U11 3 State/1 Event Data Logger - U11-001

part # U11-001 (View Specs)
  • Supported Measurements:
    Event, Motor On/Off, State Open/Closed
  • Four external sensor cables included (CABLE-2.5-STEREO)
  • One event channel and three state channels
  • Optional AC Current Switch (CSV-A8) to measure Motor on/off
  • Records up to 43,000 state changes or events
  • Includes mounting kit with magnet, hook and loop tape, tie-wrap mount, tie wrap, and two screws
Minimum System Requirements


View/Add Required Items
See Parts & Accessories
$125
1-9 10-99 100+
$125 $116 $106
Limited quantities available.