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Version 1.5 August 2001
User's Guide
Oyster pH - Conductivity - TDS - Temperature Meters
Models
34135-A
341350
341350-P
34145A
341450
341450-P
INTRODUCTION
Congratulations on your purchase of the Extech's Oyster Series meter or meter kit. These
devices measure pH/Conductivity plus TDS or Temperature. These meters are intended for
routine laboratory and field testing. Accurate measurements are provided in a battery
operated, portable meter with a hinged display that can be adjusted to any viewing angle.
Model 34135-A measures pH, Conductivity and TDS. The ‘A’ indicates ‘meter-only’.
Models 341350 and 341350-P are kits which include the 34135A and all the necessary
accessories. The ‘P’ indicates Polymer type electrode (341350 has glass electrode).
Model 34145-A measures pH, Conductivity & Temperature. ‘A’ indicates ‘meter-only’.
Models 341450 and 341450-P are kits which include the 34145A and all the necessary
accessories. The ‘P’ indicates Polymer type electrode (341450 has glass electrode).