Koehler Instrument Company Inc. has been a leading provider of Petroleum and Petrochemical testing solutions for over 75 year ... s. Be sure to visit our website at www.koehlerinstrument.com, and be on the lookout as we expand our customer outreach through various social media websites. You can find us on Facebook, Twitter, Instagram, and YouTube. Twitter: https://twitter.com/Koehler_Inst Instagram: https://www.instagram.com/koehlerinstrumentcompany/ YouTube: https://www.youtube.com/c/KoehlerInstrumentCompanyInc Facebook: https://www.facebook.com/Koehler-Instrument-Company-Inc-102907375211521 read more