O2 Controllers

O2 Controllers

The Bold Line O2 Controller:

  • Controls O2 by mixing air with N2
  • Zirconium oxide O2 sensor
  • Sensor life 10 years
  • Digital/Manual and Bold Line controllers

We are the Authorized Distributor for Okolab products in the US.


Item# Description U.S. List Price Quantity
64-2001 (O2 Unit-BL[1-20]) Bold Line O2 Gas Controller, 1-20% range
64-2007 (Oko-Touch) Touch screen display for Bold Line controllers
64-2008 (SM-BL) Smart Box (data logger, web server, and remote assistant) for Bold Line controllers
64-2000 (CO2 Unit-BL) Bold Line CO2 Gas Controller, 0-18% range
64-2006 (OKO-AP_BL) Bold Line Air Pump, max pressure 300 mbar
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Bold Line O2 Controller

The Bold Line O2 unit controls the oxygen concentration over the range of 1- 20% by mixing Air with Nitrogen.

Gas flow rates are digitally controlled. A long life zirconium oxide sensor precisely measures the O2 concentration with great accuracy.


Operation is via an easy to use touch screen interface, OKO-Touch. An optional Smart Box data logger and web server allows operation via any web-enabled device. The system may also be operated via a PC using OKOControl 2.0 software, or NIS-Elements software.

Sensor calibration is made with an external meter or calibration gas. The controller can be attached to CO2 Unit-BL to control both CO2 and O2.

The Oko Touch is necessary for operation of the bold line controller.  Oko Touch

Gas Controllers


 Cage Incubator System Overview  StageTop Incubator System Overview  CO2 Controllers  O2/CO2 Controllers
Cage Incubator
System Overview
StageTop Incubator
System Overview
CO2 Controllers O2/CO2 Controllers


Bold Line Specifications
Operating mode Adds N2 to Air
Concentration range 0-20%
Accuracy ± 0.1% @ 5% of O2
Set Point Resolution 0.1%
Repeatability 0.05% of O2
Total flow rate 0.4 Nl/min - constant
Outlet pressure Ambient
N2 consumption (at 5% of 02) 0.03 Nl/min
O2 sensor 10 year-life zirconium oxide sensor
Filtering device PTFE membrane with 0.2 μm pores
OKOLAB brochure.pdfOkolab Brochure