Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Fisherbrand™ pH Pen

pH measurement is easier than ever with the Fisherbrand™ pH Pen™ – an economical range pocket-size tester designed for on-the-go pH measurements.

Catalog No. S35927

Add to cart



 Accurate and easy to use, these testers are ideal for quick pH measurements in hydroponic gardening, aquaculture, agriculture, pools, simple lab work and other water/wastewater applications.
  • ±0.1% accuracy across full pH range
  • Auto-buffer recognition and auto-calibration functions – quick, easy calibrations at the press of a button
  • Long-lasting sensor – large volume of polymer gel reference gives longer sensor lifespan, while single Kynar™ reference junction prevents clogging
  • Automatic temperature compensation and up to three calibration points for broadened accuracy throughout the pH range


0.1, 0.1 pH
LCD, 3.5 Digit with Annunciator
16.3 x 4.5 x 3 cm
0.1 pH
4 x 1.5 V 'A76' micro alkaline batteries
90 g
0.0 to 14.0
IP-67 waterproof
Automatic Temperature Compensation (ATC)
0.0 to 14.0
Product Certifications


Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit