Lutron Portable pH Meter – Model YK‑21PH

Lutron Portable pH Meter – Model YK‑21PH

Lutron Portable pH Meter – Model YK‑21PH

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Product Description (bullet‑point style)

• Field‑Ready Design – Compact (205 × 68 × 30 mm), just 220 g, with water‑resistant front panel for reliable use in labs, plants, greenhouses, or outdoors.

• Quick, Clear Read‑out – Large 21.5 mm LCD digits give instant, easy‑to‑read results.

• High Precision – 0 – 14.00 pH range, 0.01 pH resolution, ±0.07 pH accuracy in the critical 5 – 9 pH band.

• Ultra‑High Input Impedance – 10¹² Ω input eliminates signal loading for stable, trustworthy measurements.

• Data‑Hold Convenience – Freeze the current reading to simplify note‑taking or comparisons.

• Fast Response – 0.4 s sampling lets you work efficiently when multiple samples must be checked.

• Simple Two‑Point Calibration – External trimming at pH 7 (offset) and pH 4 (slope) keeps the meter in spec without opening the case.

• Low‑Power Operation – Runs up to 200 h on a single 9 V battery; only ~2 mA draw.

• Rugged & Portable – ABS housing withstands daily handling; ideal backup or primary meter for QC, education, or field surveys.

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Key Specifications Lutron Portable pH Meter – Model YK‑21PH

• Measurement Range: 0 – 14.00 pH

• Resolution: 0.01 pH

• Accuracy: ±0.07 pH (5 – 9 pH); ±0.10 pH (4 – 10 pH); ±0.20 pH elsewhere

• Display: 21.5 mm LCD

• Input Impedance: 10¹² Ω

• Sampling Time: ≈ 0.4 s

• Operating Environment: 0 – 50 °C; < 80 % RH

• Power / Consumption: 9 V battery, ≈ 2 mA

• Dimensions / Weight: 205 × 68 × 30 mm; 220 g

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Included & Optional Items

• Included: YK‑21PH meter, user manual.

• Optional Electrodes: PE‑03 (general), PE‑11 (high‑quality), PE‑01 (lab/field), PE‑04HD (spear‑tip).

• Optional Buffers & Case: pH 7 & pH 4 buffer solutions, hard carrying case CA‑06.

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Summary

The Lutron YK‑21PH is a lightweight, water‑resistant portable pH meter that delivers 0.01 pH resolution and ±0.07 pH accuracy where it matters most. With data‑hold, rapid 0.4 s updates, and easy external calibration, it provides dependable, on‑the‑spot acidity/alkalinity readings for chemists, water‑treatment techs, food processors, hydroponic growers, and educators who need fast, accurate results without the bulk of a benchtop instrument.