TDS-1 Pen-Type TDS Meter, 0-1000 ppm (CAT#: STEM-BC-3999-ZJF)

The TDS-1 is a portable pen-type meter for measuring total dissolved solids in water. It determines TDS indirectly by measuring the electrical conductivity of the sample. The instrument is suitable for chemical processing, water treatment, pharmaceutical production, electronics, beverages, and scientific research. The LCD simultaneously displays the TDS value and sample temperature. Automatic temperature compensation improves measurement consistency when water temperature changes. A data-hold function retains the displayed result for convenient recording. Users can switch the temperature display unit according to their preference. The replaceable high-efficiency platinum-black electrode supports stable and convenient routine measurement. Its waterproof floating body and durable sealed buttons improve reliability during indoor and field use.

Power supply: 4 × 1.5 V LR44 batteries
Display: LCD
TDS measurement range: 0-1000 ppm
Measurement accuracy: ±2% FS
Temperature compensation range: 0-50°C
Temperature compensation: Automatic
Electrode type: High-efficiency platinum-black electrode
Electrode head: Replaceable
Data hold: Included
Temperature unit conversion: Included
Calibration: Single-point or multi-point
Waterproof construction: Included
Button life: More than 20,000 operations
Chipset: Integrated RAM chipset
Net weight: 88 g
Product dimensions: Ø40 × 185 mm

Compact pen-style design
0-1000 ppm measurement range
Automatic temperature compensation
Replaceable platinum-black electrode
Data-hold function
Waterproof floating enclosure
Flexible calibration modes
Long-life waterproof buttons

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