Dissolved Oxygen Water Analysis Pen Meter

OHAUS DO Pen Meter Replacement Electrode

Ohaus 30073986 Pen Meter ST20D

Ohaus 30222083 Pen Electrode, ST20D

Starter pen meters provide what should be expected of a small, economical pen meter: simple, fast, straightforward, no-frills operation time and time again.With durable ABS housing, a protective sensor cap, and automatic shutdown feature that preserves battery life, Starter pen meters can endure consistent use in rugged environments.Equipped with a wrist strap that helps prevent unintentional dropping, Starter pen meters are constructed with an IP67 waterproof design that can prevent water damage when dropped in to liquid.