Onset
 
SOFTWARE UPDATES INTERNATIONAL DEALER LOCATOR CAREERS
flag English
     

U12-012

HOBO® Temperature/RH/Light/ External Data Logger
 
Quantity
1-9
10-99
100+
$US
$125
$116
$106

Note: A complete system requires a logger and software.


Overview

The HOBO U12 Temp/RH/Light/External Logger contains internal sensors for monitoring three common indoor parameters, as well as 3rd party sensors when using the 4-20 mA cable. A fourth channel accepts a wide range of external sensors, including temperature, AC current, AC voltage, CO2, 4-20mA, and DC voltage cables.

divider
Features:
  • 12-bit resolution provides high accuracy
  • Large memory for long-term deployments or fast sampling
  • Five models to choose from, with flexible measurement options
  • Programmable and push button start
divider
Environment: Indoor
Measurement: AC Current
Temperature
Relative Humidity
DC Voltage
4-20mA
AC Voltage
Carbon Dioxide
Light Intensity
   
 
Product ID: U12-012
Product Name: Temperature/RH/Light/ External
Product Type: Data Loggers

Specs

Measurement range:
U12-012 Plot ATemperature: -20° to 70°C (-4° to 158°F)
RH: 5% to 95% RH
Light intensity: 1 to 3000 footcandles (lumens/ft2) typical; maximum value varies from 1500 to 4500 footcandles (lumens/ft2)
External input channel (see sensor manual): 0 to 2.5 DC Volts

Accuracy:
Temperature: ± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F), see Plot A
RH: ± 2.5% from 10 to 90%, see Plot B; conditions above 80% RH and 60°C (140°F) may cause additional error
U12-012 Plot B Light intensity: Designed for indoor measurement of relative light levels, see Plot D for light wavelength response
External input channel (see sensor manual): ± 2 mV ± 2.5% of absolute reading

Resolution:
Temperature: 0.03°C at 25°C (0.05°F at 77°F), see Plot A
RH: 0.03% RH

Drift:
U12-012 Plot C Temperature: 0.1°C/year (0.2°F/year)
RH: <1% per year typical; RH hysteresis 1%

Response time in airflow of 1 m/s (2.2 mph):
Temperature: 6 minutes, typical to 90%
RH: 1 minute, typical to 90%

Time accuracy: ± 1 minute per month at 25°C (77°F), see Plot C

Operating temperature:
Logging: -20° to 70°C (-4° to 158°F)
U12-012 Plot DLaunch/readout: 0° to 50°C (32° to 122°F), per USB specification

Battery life: 1 year typical use

Memory: 64K bytes (43,000 12-bit measurements)

Weight: 46 g (1.6 oz)

Dimensions: 58 x 74 x 22 mm (2.3 x 2.9 x 0.9 inches)

The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

Required Items

  • 12-bit resolution provides high accuracy
  • Large memory for long-term deployments or fast sampling
  • Five models to choose from, with flexible measurement options
  • Programmable and push button start

1 Compatible Sensors

  Measurement Part #/Name
Compatible Sensors for the U12-012 
Temperature ->
TMCXXXXX
   
Part #/Name Photo Pricing Buy
TMC1-HD
Air/Water/Soil Temp Sensor (1' cable)
No Image
Qty
1-9
10-99
100+
$US
$28
$26
$24
 
TMC20-HD
Air/Water/Soil Temp Sensor (20' cable)
Qty
1-9
10-99
100+
$US
$35
$32
$30
 
TMC50-HD
Air/Water/Soil Temp Sensor (50' cable)
Qty
1-9
10-99
100+
$US
$40
$37
$34
 
TMC6-HC
Stainless Steel Temp Probe (6' cable)
Qty
1-9
10-99
100+
$US
$75
$69
$64
 
TMC6-HD
Air/Water/Soil Temp Sensor (6' cable)
Qty
1-9
10-99
100+
$US
$30
$28
$26
 

CLOSE   
 
   
Carbon Dioxide ->
TEL-7001
   
Part #/Name Photo Pricing Buy
TEL-7001
Telaire 7001 CO2 Sensor
Qty
1-9
10-99
100+
$US
$465
$430
$395
Click to view Essential Components and Accessories for the TEL-7001

   
Part #/Name Photo Pricing Buy
CABLE-CO2
CO2 Sensor to Logger Cable
Qty
1-9
10-99
100+
$US
$25
$23
$21
 
 
   

CLOSE   
 
   
AC Amperage ->
CTV-X
   
Part #/Name Photo Pricing Buy
CTV-A
0 - 20 Amp split-core AC current sensor
Qty
1-9
10-99
100+
$US
$86
$80
$73
 
CTV-B
0 - 50 Amp split-core AC current sensor
Qty
1-9
10-99
100+
$US
$86
$80
$73
 
CTV-C
0 - 100 Amp split-core AC current sensor
Qty
1-9
10-99
100+
$US
$86
$80
$73
 
CTV-D
0 - 200 Amp split-core AC current sensor
Qty
1-9
10-99
100+
$US
$109
$101
$93
 
CTV-E
0 - 600 Amp split-core AC current sensor
Qty
1-9
10-99
100+
$US
$109
$101
$93
 

CLOSE   
 
   
AC Voltage ->
T-CON-ACT-XXX
   
Part #/Name Photo Pricing Buy
T-CON-ACT-150
ConLab 90-150 Volt AC Trasformer
Qty
1-9
10-99
100+
$US
$135
$125
$115
Click to view Essential Components and Accessories for the T-CON-ACT-150

   
Part #/Name Photo Pricing Buy
Required Sensors for the T-CON-ACT-150 
CABLE-4-20MA
4-20 mA cable
Qty
1-9
10-99
100+
$US
$22
$20
$19
 
 
   
T-CON-ACT-300
ConLab 180-300 Volt AC Transmitter
Qty
1-9
10-99
100+
$US
$135
$125
$115
Click to view Essential Components and Accessories for the T-CON-ACT-300

   
Part #/Name Photo Pricing Buy
Required Sensors for the T-CON-ACT-300 
CABLE-4-20MA
4-20 mA cable
Qty
1-9
10-99
100+
$US
$22
$20
$19
 
 
   

CLOSE   
 
   
4-20 mA ->
CABLE-4-20MA
   
Part #/Name Photo Pricing Buy
CABLE-4-20MA
4-20 mA cable
Qty
1-9
10-99
100+
$US
$22
$20
$19
 

CLOSE   
 
   
DC Voltage ->
CABLE-2.5-STEREO
   
Part #/Name Photo Pricing Buy
CABLE-2.5-STEREO
Voltage Input Cable
Qty
1-9
10-99
100+
$US
$8
$7
$7
 

CLOSE   
 
   

2 Communications

  Measurement Part #/Name
Communications for the U12-012 
CABLE-USBMB
USB Cable
Qty
1-9
10-99
100+
$US
$9
$8
$7
 
U-DT-1
HOBO® U-Shuttle
Qty
1-9
10-99
100+
$US
$249
$230
$212
 
SERVER-US-4
Ethernet Server for HOBO U-series loggers
Qty
1-9
10-99
100+
$US
$145
$130
$130
 

3 Software

Required Software for the U12-012 
BHW-XXXX ->
   
Part #/Name Photo Pricing Buy
BHW-PC
HOBOware® Pro for Windows
Qty
1-9
10-99
100+
$US
$99
$92
$84
Click to view Essential Components and Accessories for the BHW-PC

   
Part #/Name Photo Pricing Buy
Accessories for the BHW-PC 
BHW-DA-GDD-CD
Growing Degree Days (CD-ROM)
Qty
1-9
10-99
100+
$US
$34
$31
$29
 
BHW-DA-GPP-CD
Grains Per Pound Data Assistant (CD-ROM)
Qty
1-9
10-99
100+
$US
$34
$31
$29
 
BHW-T-ALRM
Alarm and Readout Tool
Qty
1-9
10-99
100+
$US
$49
$45
$42
 
 
   
BHW-Mac
HOBOware® Pro for Mac
Qty
1-9
10-99
100+
$US
$99
$92
$84
Click to view Essential Components and Accessories for the BHW-Mac

   
Part #/Name Photo Pricing Buy
Accessories for the BHW-Mac 
BHW-DA-GDD-CD
Growing Degree Days (CD-ROM)
Qty
1-9
10-99
100+
$US
$34
$31
$29
 
BHW-DA-GPP-CD
Grains Per Pound Data Assistant (CD-ROM)
Qty
1-9
10-99
100+
$US
$34
$31
$29
 
BHW-T-ALRM
Alarm and Readout Tool
Qty
1-9
10-99
100+
$US
$49
$45
$42
 
 
   
BHW-LITE
HOBOware® Lite
Qty
1-9
10-99
100+
$US
$39
$36
$33
 

CLOSE   
 
   

Accessories

Part #/Name Photo Pricing Buy
Accessories for the U12-012 
HRB-TEMP
Replacement batteries for several loggers (Box of 6)
Qty
1-9
10-99
100+
$US
$14
$13
$12
 
NIST-XXXXXXXXXX ->
   
Part #/Name Photo Pricing Buy
NIST-SETUP
Setup Charge for NIST
Qty
1-9
10-99
100+
$US
$30
$30
$30
 

CLOSE   
 
   

Support

Manual

Part Number Image Name Manuals
U12-012 Temperature/RH/Light/ External PDF

Maintenance

  No maintenance items for this product

FAQs

Can I use my light intensity logger as an inexpensive light meter? [show/hide]

No! These light intensity loggers are designed to give you a general comparative idea of how much light there is in an area: sunlight v. shade, lights on/off, etc. If you plan on recording specific lighting information or absolute values, these loggers will not work for you.

How do lumens/ft2 relate to Lux and Foot-candles? [show/hide]

The two most popular scales for light measurement are Lux, which is the European measure, and Foot-candles, which is the U.S. scale.
Lux and Foot-candles are measures of illumination - the amount of light falling on an object per unit area. The difference is whether the light is measured in square meters or square feet:

What should I do if the logger's internal board gets wet? [show/hide]

If possible, remove the board from the case and the battery from the board. Dry the board completely using a hair dryer. If the board was exposed to salt water, rinse the board with fresh water and then dry the board. You may try inserting a new battery and downloading the data. If you are unable to access the data, or see any sign of corrosion or tarnishing on the board, contact the place of purchase for a return number. The data may be retrievable, and the logger may be repairable. Charges will apply and are dependent on the amount of damage.