Rosemount Analytical OEM Model 3900 General Purpose pH/ORP AccuGlass Sensor — Part Number 3900-02-10 Brand: Rosemount Analytical (Emerson) | Condition: New Old Stock (NOS)
You are purchasing a genuine Rosemount Analytical OEM Model 3900 General Purpose pH/ORP Sensor, part number 3900-02-10. This is an authentic factory original part — never installed, never used.
Condition Details: This is a New Old Stock (NOS) part. The sensor itself is in new, unused condition. Original factory packaging is present; assembled in Mexico by Rosemount Analytical Inc., Irvine, CA. Assembly Number 3900*16494597, S/N: K16-12899850-002. As is common with NOS inventory, the original packaging may show signs of age. The part is new and fully functional.
Part Number / Supersede Information:
Primary OEM Part Number: 3900-02-10
Model-Option#: 3900-02-10
Assembly Number: 3900*16494597
Description per label: SENSOR, W/O PRE-AMP, MODEL 3900 PH
The 3900-02-10 is the Rosemount Analytical Model 3900 General Purpose pH/ORP Sensor with AccuGlass low-resistivity pH glass (0–14 pH range), no preamplifier, 15' (5 m) integral cable. Double junction reference design resists poisoning by ammonia, chlorine, cyanides, and sulfides. Porous Teflon® junction. Suitable for pipelines, open tanks, and ponds. Class I, II, III, Div. 1 and Div. 2 hazardous location certifications.
Why Choose OEM Parts? OEM parts are engineered and manufactured to exact factory tolerances, ensuring a precise fit, reliable performance, and long service life. Unlike aftermarket alternatives, OEM parts are designed specifically for your equipment — no modifications, no guesswork.
Compatibility: For use with Rosemount Model 3900 pH/ORP analytical systems. Please verify fitment using your equipment's model and serial number before purchasing.
Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.
Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience. Please verify fitment using your equipment's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!
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