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HM Digital Handheld TDS, EC & pH Meters
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HM Digital TDS-4 Pocket-Size TDS Meter
The HM Digital TDS-4 pocket-size TDS meter measures total dissolved solids in water from 0 to 9990 ppm (mg/L). Its compact, lightweight design, easy-to-read LCD and automatic temperature compensation make it convenient for routine water testing at home or in commercial applications.
Water Testing Applications
Use the TDS-4 for water purification applications, drinking water testing, freshwater aquariums and aquaculture, horticulture and hydroponics, pools and spas, and colloidal silver applications. TDS readings measure dissolved solids; they do not identify individual contaminants or establish that water is safe to drink.
Features
Compact pocket-size design weighing 34 g (1.2 oz).
Advanced microprocessor technology and a large, easy-to-read LCD.
Hold function keeps a measurement on screen for convenient reading and recording.
Automatic shutoff after 10 minutes of non-use helps conserve batteries.
Built-in automatic temperature compensation from 1 to 50°C.
Factory calibrated with a 342 ppm NaCl solution; recalibration is possible with a mini-screwdriver.
Specifications
Model: TDS-4.
Measurement range: 0–9990 ppm (mg/L).
Resolution: 1 ppm from 0–999 ppm; 10 ppm from 1000–9990 ppm, indicated by a blinking ×10 icon.
Accuracy: ±2%.
EC-to-TDS conversion: NaCl, average factor of 0.5.
Automatic temperature compensation: 1–50°C.
Power: Two 1.5V LR44 button-cell batteries or equivalent, included.
Battery life: 1000 hours of usage.
Dimensions: 14 × 2.3 × 1.5 cm (5.5 × 0.9 × 0.55 inches).
Meter weight: 34 g (1.2 oz).
UPC: 891144000182.
