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U12-008

HOBO® 4-Channel External Data Logger
 
Quantity
1-9
10-99
100+
$US
$199
$184
$169

Note: A complete system requires a logger and software.

Overview

The HOBO U12 Outdoor/Industrial Logger provides 4 channels of input from a wide range of external sensors, including temperature, AC current, AC voltage, CO2, 4-20mA, and DC voltage cables. The rugged enclosure is designed for use in harsh outdoor and industrial applications.

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Features:
  • Weatherproof enclosure for monitoring in condensing environments
  • 4 channels of external input allow monitoring of multiple measurements up to 50 feet from logger
  • Accepts Temperature, AC current, AC voltage, CO2 or third-party sensors via 0-2.5 VDC or 4-20 mA cables
  • 12-bit resolution provides high accuracy
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Environment: Indoor
Outdoor
Measurement: Temperature
DC Voltage
4-20mA
   
 
Product ID: U12-008
Product Name: 4-Channel External
Product Type: Data Loggers

Specs

Measurement range: External input channels (see sensor manual): 0 to 2.5 DC Volts

Accuracy (logger only):
U12-008 Logger Timebase Error Plot± 2 mV ± 2.5% of absolute reading
± 2 mV ± 1% of reading for logger-powered sensors

Resolution: 0.6mV

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

Operating range:
-20 to 70°C (-4° to 158°F)
Weatherproof case tested to NEMA 6 standard

Operating temperature:
Logging: -20° to 70°C (-4° to 158°F)
Launch/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: 200 g (7 oz)

Dimensions: 140 x 137 x 32 mm (5.5 x 5.38 x 1.25 inches)

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

Required Items

  • Weatherproof enclosure for monitoring in condensing environments
  • 4 channels of external input allow monitoring of multiple measurements up to 50 feet from logger
  • Accepts Temperature, AC current, AC voltage, CO2 or third-party sensors via 0-2.5 VDC or 4-20 mA cables
  • 12-bit resolution provides high accuracy

1 Compatible Sensors

  Measurement Part #/Name
Compatible Sensors for the U12-008 
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 U12-008 
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 U12-008 
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

Accessories for the U12-008 
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
U12-008 4-Channel External PDF

Maintenance

Part #/Name Photo Pricing Buy
Maintenance for the U12-008 
85-DOMEPLUG
Dome plug to access serial comm port
Qty
1-9
10-99
100+
$US
$1
$1
$1
 
85-ORING-14
O-ring for 85-DOMEPLUG
Qty
1-9
10-99
100+
$US
$1
$1
$1
 
DESIC-PACK
Desiccant pack for Outdoor/Industrial loggers (Qty 2)
Qty
1-9
10-99
100+
$US
$7
$6
$6
 
H8x4-BK
Replacement parts kit for Outdoor/Industrial loggers 		No Image
Qty
1-9
10-99
100+
$US
$27
$25
$23
 

FAQs

What is the precision of the U12 Outdoor/Industrial Logger? [show/hide]

The logger measures analog voltages with a 12-bit A/D converter; therefore, any sensor's
input will have not more than its range divided by 4096 values. For linear inputs, like a raw voltage input,
the value for each step is equal. For nonlinear inputs, like temperature, the values of the steps are not equal.
Can channel 1 voltage input be attached to channel 2 ground on the four channel external logger? [show/hide]

No. The four inputs on the 4-channel external share a common ground. You cannot isolate any of the channels.
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.

 
 

Mailing: PO Box 3450, Pocasset, MA 02559-3450
Street: 470 MacArthur Blvd., Bourne, MA 02532
Tel: 1-800-LOGGERS, 1-800-564-4377, 508-759-9500
Fax: 508-759-9100