At the Society for Free Radical Biology and Medicine's annual 2011 meeting in Atlanta, WPI introduced two new sensors with a wider range and higher sensitivity:

• ISO-NOPF500 - A nitric oxide sensor with a 500µm tip
• ISO-H2S-100 - A hydroden sulfide sensor with a 100µm tip

Both sensors work like their 2mm couterparts, but they require NO sleeves or filling solution! These are dry sensors, and they are much more sensitive.

ISO-NOPF500

The ISO-NOPF500 is a nitric oxide sensor designed like the dry, carbon fiber ISO-NOPF sensors, however, it works like a traditional ISO-NOP. The sensor can be ordered in a variety of lengths from 5–10mm. It incorporates WPI’s proprietary combination electrode technology in which the nitric oxide-sensing element and separate reference electrode are encased within a single shielded sensor design.

ISO-H2S-100

The ISO-H2S-100 is a hydrogen sulfide sensor with a 100µm diameter tip. It is designed like the dry microsensors, however, it works like a traditional ISO-H2S-2 sensor. The sensor can be ordered in a variety of lengths from 1–5mm. It incorporates WPI’s proprietary combination electrode technology in which the hydrogen sulfide-sensing element and separate reference electrode are encased within a single shielded sensor design.

WPI carries a variety of biosensors for nitric oxide, oxygen, hydrogen sulfide and hydrogen peroxide . To see a comparison, look at "Biosensor Specifications." Our offices are open M-F 8:00AM-6:00PM EST, and real people answer the phones. If you have questions or would just like to talk with one of our scientists or sales team, call 866.606.1974 or email us at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it .