# Bar30 operating temperature **URL:** \ **Category:** Sensors\ **Created:** [April 11, 2022, 5:08am UTC](https://discuss.bluerobotics.com/t/bar30-operating-temperature/11929 "2022-04-11T05:08:23Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\ **Post date:** [April 20, 2022, 11:43pm UTC](https://discuss.bluerobotics.com/t/bar30-operating-temperature/11929/5 "2022-04-20T23:43:48Z")
> [@EliotBR](#): > > I’ve brought it up again and will hopefully have a more concrete response soon 🙂 Update on this, > [@BrianBR](#): > > We haven’t tested the Bar30 (or Bar02) to the sensor’s temperature extremes at pressure, so [you] would need to try at your own risk. > > I would avoid freezing the sensor in water as it might damage the assembly (e.g. I’m not sure what will happen when water is frozen in the o-ring glands - it might cause the design to fail when the ice expands). > > I think we have had customers use the sensor in [liquid water in] freezing temperatures, so that might be ok. I’m unsure whether @Marruger was using a Bar30 or Bar100 in their antarctic testing, but this (and the rest of their notes) may be worth a read: > [@Notes and Learnings from remote field work in Antarctica](https://discuss.bluerobotics.com/t/notes-and-learnings-from-remote-field-work-in-antarctica/10981/1): > > Anyone operating in sub-zero conditions can take note that I would often store the unit in the water turned on, rather than on the ice as it was warmer (-2 compared to -20 C). I only had one situation with frozen props on a battery change, which freed themselves in short order once in the water. Each time I lifted the unit out of the water I would tilt it around to drain water from the props, and this worked fine. I had no issues with condensation and did nothing other than putting new desiccant bags in once prior to the trip. --- _[View the full topic](https://discuss.bluerobotics.com/t/bar30-operating-temperature/11929)._