Ohaus ST20T-B TDS Pen Meter with Temperature, Waterproof, 0-1000 mg/L sold2025 sink and so on

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Ohaus ST20T-B TDS Pen Meter with Temperature, Waterproof, 0-1000 mg/L sold2025 sink and so onOhaus ST20T B TDS Pen Meter with Temperature, Waterproof, 0 1000 mg L Ohaus pen meters provide accurate measurement of pH, oxidation reduction potential (ORP), conductivity, salinity and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement with no restriction. Each meter offers simple operation in a slim & portable design providing fast, straight