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Designed to protect and care for every embryo

The BT37 MkII combines providing a consistent and optimal environment for embryo development with improved functionality and ease of use ensuring that it helps protect and care for your embryo’s and gametes throughout their culture.

The BT37 MkII provides precision control of all the parameters required to ensure optimal homeostatic conditions are maintained throughout the whole chamber.

The BT37 MkII is packed with new and improved features to ensure the incubator is easy and intuitive to use.


Optimum Environment Conditions

The specially designed chamber base ensures heat transfers directly to the culture dish ensuring embryos are keep at optimal temperature not just the chamber base. The heated chamber base and lid ensures that temperature consistent throughout the chamber, with variation across the chamber no greater that 0.2 oC or across a single dish of 0.1 oC. The BT37MkII uses premixed bottled gas or supply via an external gas mixer e.g. Okolabs TriGas to provide the optimum pH environment for your embryos or gametes.


New Generation Humidification system

The BT37 MkII can be operated using either the original BT37 three tube bottle design or the new improved BT37 MKII bottle design. The new BT37 MkII improved humidification

bottle makes changing the bottle quick and easy as well as reducing the risk of gas flow failure from pinched or kinked tubes. The BT37 MkII can be run as a non humidified environment by not filling the bottle with water (humidification bottle must still be fitted).


Easy and Intuitive to Use

The touchscreen display provides clear information regarding the chamber conditions, user alert and alarm messages and the system setup menus* at a glance ensuring the incubator is simple and intuitive to use direct from the on screen menus and messages.

*System operation is fully password protected


Comprehensive Protection for Embryos

Embryos inside the BT37MkII are protected by a comprehensive range of alarms and reminders. In additional to the individual chamber alarm indicators the main touchscreen clearly display alerts and alarm messages to allow quick identification and rectification of any potential situations or errors before damage is done to the embryo’s inside. The BT37MkII has extensive access for independent monitor of various critical parameters including temperature, CO2 and pH as well as connections for external monitoring systems to provide alerts even when the facility is unmanned.


Improved Chamber Access

The ergonomic and non-intrusive twist lock lid catches have been designed to ensure not only that a good seal is maintained enabling the optimum environment is reinstated quickly post lid open, but also that single handed access to the chambers is simpler and easier. Simply twist and lift the lid using the catch.


In Built Convenience

The soft close lids system fitted to the BT37 MkII prevents accidental lids closing whilst accessing the embryo’s within the chamber. Lids slamming closed accidentally potentially disrupts the culture dishes and embryo’s inside.


Minimal Down time

We know that it is important to our customers that down time when equipment is not available for use is kept to a minimum therefore the BT37MkII incorporates numerous hidden changes all designed to reduce the time the incubator is out of service for maintenance.





Dimensions 435 mm wide x 330 mm deep x 185 mm high
Weight 17 kg
Storage temperature -10 °C to +50 °C
Storage humidity 5% to 95% relative humidity non-condensing
Weight: incubation chamber 3.5Kg
Storage special instructions Recharge every 4 months by connecting to the mains power supply for 24 hours.
Operating environment For indoor use only
Operating temperature +5 °C to +40 °C for safe operation
Operating humidity 20 % to 80 % relative humidity non-condensing decreasing linearly to 50 % relative humidity at 40 °C.
Altitude up to 2000 m
Pollution degree Pollution degree 2 (BS EN61010-1)
IP rating IP31


Temperature control range (ambient + 5 °C) to (ambient + 20 °C) 40 °C max.
Temperature measurement accuracy ± 0.2 °C
Temperature control accuracy ± 0.1 °C measured after any transient effects due to set-point changes have subsided.
Flow control range 0 ml/minute to 900 mL/minute Normalised to 0 C , 50% RH and 1 bar.
Flow accuracy The greater of ± 10% or ± 3 ml/minute
Flow control accuracy The greater of ± 5% or ± 2 ml/minute measured after any transient effects due to set-point changes have subsided.
Accuracies apply at the calibration points. The system is factory calibrated for an operating temperature of 37°C, nominal bleed flow of 30 mL/min and a purge at 360mL/min.


Dishes per chamber 4 x NUNC 4 well dishes,
4 x NUNC 60 mm Petri dishes 10 x NUNC 30 mm Petri dishes 4 x MINITUB 5 well dishes
4 x FALCON 60 mm Petri dishes


Power requirements 100 - 240 V~ 50/60Hz 2A
Internal battery backup Gelled sealed lead acid battery 12V x 12 A.h


Gas supply
Gas supply Premixed gas. Typically 6% CO2, 5% O2, 89% N2
Supply pressure 1.5 ± 0.15 bar
Connectors SWAGELOK 1/4" tube fitting


Humidifier Bottle and Filter Kits - The humidifier water bottle and filter must be replaced every 28 days (4 weeks)
Order Code Description
AY102295 BT37 MkI three tube humidifier bottle & filter kit (pack of six)
AY200246 BT37 MkII single tube humidifier bottle and filter kit (pack of six)
  • Overview +


    • Excellent control and accuracy of pH, temperature, and humidity
    • Holds large range of culture dishes
    • Built-in battery backup
    • Alarm system
    • Secure gas flow
    • Sample-specific chambers
    • Compact, space-efficient
    • Network ready
    • Password protected
    • Remote Monitoring ports
    • Multiple machines can be connected


    Gas supply Premixed gas. Typically 6% CO2, 5% O2, balance N2
    Supply pressure 1.5 ± 0.15 bar
    Connectors SWAGELOK 1/4” tube fitting


    You need to get a premix gas bottle with a Swagelok 1/4" Male fitting.
    Our hose is supplied with a 1/4" female nut.

  • Benefits +

    • Rapid response to temperature changes
    • Clear, unambiguous status indicators visible from across the lab
    • Multiple machines can be connected in series
    • Network ready to allow continuous monitoring
    • Fast recovery of all parameters after lid opening
    • Warmed tube guide helps avoid condensation
    • Built-in battery backup for up to 2 hours
    • Tube guides reduce risk of ‘kinked’ tubes
    • Password protection - no unauthorized modification of operating parameters


    This equipment has excellent control and accuracy for pH, temperature, and humidity. Its compact size allows placement anywhere in a lab including flow cabinets and chambers and it can hold a large range of culture dishes, with different samples separated by chamber.

  • Features +

    • Full-contact heating plates for excellent heat distribution
    • Gas purge system ensures fast recovery after lid opening; secure gas flow
    • Water level & gas flow visual indicator; gas flow system visible from across a lab
    • Easy to use 2 line display with 3 button user interface
    • Set-points for each chamber : set independently
    • Tightly packed, full-surface heating elements:  stable environment from heated base and lid
    • Built-in battery backup
    • Warmed tube guide : helps avoid condensation


    • Advanced alarm system; external alarm contact
    • Remote monitoring:  6 monitoring ports for external probes / calibration
    • Ethernet access
    • Independent PRT ports for lid and base unit
    • Dual cooling fans remove excess heat
    • 10 Base T Ethernet (RJ 45); Modbus - TCP/IP protocol
    • Continuous pulse & bleed options optimises culture conditions, reduces gas use.
    • Password protection - no unauthorized modification /no accidental “switch-off
  • Background +

    The BT 37 bench-top incubator is the most accurate of its kind and useful wherever accuracy and control of a cell culturing environment is needed.

    • IVF and ART
    • Human embryology research
    • Animal IVF
    • Zoological research
    • Mouse embryo research

    Case Study - Fertility unit looks for highest incubator accuracy (Adobe Acrobat PDF, 60KB)

  • Case Study +

    BT37 Case Study Cancer Research UK

    Comparative Performance given at Canadian Fertility & Andrology Society September 2011

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Incubator News

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