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The Optical DO Probe Metal Guard protects the Vernier Optical DO ProbeĀ and the Go Direct Optical DO Probe cap when taking measurements in the field and helps weigh down the probe when submerged.
Due to recent changes in U.S. trade policy, new tariffs are being implemented that impact our products. This means a surcharge of 5% will be applied to orders received starting May 12th, with the exception of software and books. Learn more.
5-year limited warrantySee our warranty policy
Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.