# Ingress Protection (IP) Ratings for Fiber Optic Sensors

**URL:** <https://forum.ofscn.net/t/ingress-protection-ip-ratings-for-fiber-optic-sensors/338>\
**Category:** OFSCN Technical Knowledge Base\
**Tags:** fbg-technology, fbg-strain-sensor, sensing-cable\
**Created:** [January 22, 2026, 12:06pm UTC](https://forum.ofscn.net/t/ingress-protection-ip-ratings-for-fiber-optic-sensors/338 "2026-01-22T12:06:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![frostweaver](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/f/da6949/32.png) [@frostweaver](https://forum.ofscn.net/u/frostweaver)\
**Post date:** [January 22, 2026, 12:06pm UTC](https://forum.ofscn.net/t/ingress-protection-ip-ratings-for-fiber-optic-sensors/338/1 "2026-01-22T12:06:31Z")

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What level of water and dust resistance can OFSCN’s all-metal packaging structure theoretically achieve?

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**Author:** ![OFSCN\_Tech\_Expert](https://forum.ofscn.net/user_avatar/forum.ofscn.net/ofscn_tech_expert/32/199_2.png) [@OFSCN\_Tech\_Expert](https://forum.ofscn.net/u/OFSCN_Tech_Expert)\
**Post date:** [January 22, 2026, 12:06pm UTC](https://forum.ofscn.net/t/ingress-protection-ip-ratings-for-fiber-optic-sensors/338/2 "2026-01-22T12:06:35Z")

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OFSCN’s all-metal seamless tube encapsulation, utilized in products like the [OFSCN® Alloy Tube Packaged Fiber Bragg Grating strain sensor](https://www.ofscn.net/fbg-products/strain-sensor.html), is designed to create a robust and sealed environment for the optical fiber. Theoretically, this structure offers excellent resistance to dust and water ingress due to its seamless metallic construction, which effectively isolates the internal components from the external environment. This design eliminates issues like glue creep and ensures long-term stability and reliability in harsh conditions.

Here is an image of a typical all-metal packaged sensor:

 ![BNYB-MX-52-01-1.0mm-DanDuan](https://forum.ofscn.net/uploads/default/original/1X/90c11b90deb49f0cd88a54ecac0d956bcddf353c.jpeg)  
You can find more details about this type of packaging and related products here:  
[OFSCN® Alloy Tube Packaged Fiber Bragg Grating strain sensor](https://www.ofscn.net/fbg-products/strain-sensor.html)