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WET Labs

Bioluminescence Assessment Tool (UBAT)

WET Labs' UBAT is designed to measure mechanically stimulated bioluminescence in both coastal and oceanic systems from 0–600 m in depth.

UBAT Features

  • Provides calibrated, high-resolution (60 Hz signal and 1 Hz average) measurement of mechanically stimulated bioluminescence for assessing water column ecosystem dynamics.
  • Field calibration light source is used to track sensor drift.
  • Modular design for easy cleaning.

Bioluminescence, in conjunction with other IOPs, can provide a more complete picture of spatial and temporal variability of the biogeochemical complexity of coastal and ocean ecosystems, especially the response of the planktonic community, to environmental fluctuations.


Weight (in air)
Weight (in water)
Pressure housing
Flow Rate  
Chamber volume
Detection Chamber

34.93 cm x 10.80 cm x 16.83 cm
I3.81 cm ID; 5.08 cm OD
5.10 kg
1.64 kg
Acetyl copolymer plastic
0.330 ±0.03 L s-1
0.440 L
Molded acrylic and titanium dioxide (> 95% reflectance between 430–700 nm) —Light-baffled air-bleed ports located at top of the detection chamber exhaust any air



Temperature range 
Depth rating 

4–38 deg C
600 m



Digital output signal
Digital output resolution
Baud rate
Input voltage
Current, typical
Sample rate

16 bit
9–18 VDC
600 mA
60 Hz sampling rate with 1 Hz data output rate
MCBH-6-MP (power & communication), MCBH-3-FS (Validation (LED)



Detection range 
Photomultiplier Tube
1.50e7– 6.7e13 Photons s-1



Units  Photons L-1s-1
The list below includes (as applicable) the current product brochure, manual, and quick guide; software manual(s); and application notes.

Title Type Publication Date PDF File
AUV/ROV/Glider Sensors Brochure Product Brochure Monday, April 16, 2018 PDF icon Brochure-6p-sbs-auv-rov-2018.pdf
Bioluminescence Assessment Tool (UBAT) Drawing Product Datasheet Tuesday, July 4, 2017 PDF icon drawing-UBAT.pdf
UBAT Datasheet Product Datasheet Wednesday, July 5, 2017 PDF icon datasheet-ubat.pdf
UBAT Hardware Manual Product Manual Tuesday, July 4, 2017 PDF icon manual-ubat-hardware.pdf
UBAT Software Manual Product Manual Tuesday, July 4, 2017 PDF icon manual-ubat-software.pdf
UBAT Software Manual Software Quick Guide Wednesday, July 5, 2017 PDF icon manual-software-ubat.pdf

The BioLumINescence Controller software (BLINC) is the graphic user interface and control software for the Underwater Bioluminescence Assessment Tool (UBAT).

Version 2013.04.10 released April 10, 2013
File UBAT_20130410.exe for Windows 7/8/10

What should I use to lubricate bulkhead connectors?

We recommend keeping the connectors on your meter lubricated using a good quality silicone spray lubricant, such as 3M Silicone Spray or Loctite 8021 spray. These can be purchased at your local hardware store. Avoid silicone grease. It is messy and attracts contaminants.

Do not use WD-40. It will destroy connectors.