The Apera 5053 (AI237) is a compact handheld tester designed specifically to measure sodium chloride (NaCl) concentration in aqueous solutions. Its platinum-black sensor minimizes electrode polarization at high salt concentrations, while automatic temperature compensation maintains measurement accuracy across varying solution temperatures. Its single-button operation makes it suitable for quick brine and saline-water testing without sample preparation.
• Brand: Apera Instruments
• Model / SKU: 5053 / AI237
• Measurement Parameter: NaCl concentration (% w/w)
• Measurement Range: 0–20% NaCl
• Accuracy: ±0.4%
• Sensor: Platinum-black electrode
• Temperature Compensation: Automatic (ATC), 0–60°C
• Calibration: Automatic one-point calibration; approximately monthly under normal use
• Operation: Single-button dip-and-read with automatic shutoff
• Dimensions: 176 × 39 × 25 mm
• Important Limitation: Does not measure EC, TDS, ppm, or seawater salinity in ppt.
Key Advantage: Its platinum-black sensor provides reliable NaCl concentration measurements up to 20% in a compact, easy-to-use instrument. Automatic temperature compensation and infrequent calibration make it convenient for routine brine and saline-solution checks.