OTB-8 Series

Haven's OTB-8 Digital Oil / Water Baths are a compact and reliable solution for the calibration of thermal sensors. Available in 2 models depending on temperature range and application required.

All baths are supplied complete with bath cover, drain tap, carry handles and hole to hold a certified sensor. The bath is fully insulated on the sides and the base and has a cooling coil fitted for connection to a cold water supply for use around ambient.


  • Temperature stability as good as ±0.005°C

  • Ranges covering -35°C* to 250°C

  • 7 Litre or optional 12 litre capacity bath


TempWorks Software has been designed for use with the OTB-8 and many other products from Haven’s range of temperature equipment. It is a Windows based program that connects via an RS-232 connection to your computer.


Programs can be created, saved and recalled at any time as well as running in real-time mode.

With TempWorks running on a PC you can set and read the dry block temperature, create and run temperature cycles with multiple set points, and control the rate of change.  You can also use external thermometers such as Spec-Cal Eclipse II, Accu-Temp, Accu-Temp II, Cropico 3000 series and ASL F250.

*A Flow Cooler is required to operate the OTB‐8S model at below ambient temperatures.


Dip Cooler is required to operate the OTB‐8HT model at below ambient temperatures. A specially designed Bath must be ordered if the OTB‐8HT is intended for use with a Dip Cooler.