PRESTONICS presents the DK-TDS-001 TDS Sensor Assembly Module manufactured by DK Sensor, a highly advanced, dual-function solution engineered for simultaneous fluid purity evaluation and thermal tracking. Fully optimized for professional “Design-in” engineering and high-volume OEM integration, this multi-parametric module provides the long-term component stability and Project Protection required for modern water-treatment and climate-control architectures.
The sensor is strategically configured with a combined electrochemical and thermal sensing assembly to deliver accurate and actionable liquid-quality data:
Dual-Function Sensing Architecture: Integrates a Total Dissolved Solids (TDS) measurement element directly alongside a high-precision NTC thermistor inside a single housing, enabling simultaneous purity and thermal data collection.
Accurate PPM Purity Evaluation: Monitors absolute water contamination levels by measuring total dissolved solids in PPM (Parts Per Million) units across a baseline range of 10 to 100 ppm.
Dynamic Temperature Correction: Designed to allow real-time software calibration, ensuring that active TDS values can be corrected and stabilized via the onboard temperature sensor across fluctuating fluid environments.
Rapid Thermal Responsiveness: Equipped with an ultra-responsive thermistor featuring a thermal time constant of less than 3 seconds during fluid transitions, ensuring instantaneous temperature synchronization.
Pre-Assembled Plug-and-Play Interface: Form-factored with a generous 430mm wire harness that splits cleanly into a 4-pin layout-assigning pins 1 and 2 to the thermistor and pins 3 and 4 to the TDS sensor for seamless electrical integration.
Technical Specifications Summary:
TDS Measurement Range: 10 to 100 ppm ±15%
Target Fluid & Limits: Optimized exclusively for water, supporting a fluid temperature range of 0°C to 45°C
Thermistor Nominal Resistance: 10.74 kΩ ±2% at 25°C
Thermistor B-Constant (0°C/100°C): 3450K ±2%
Thermal Constants: Time constant under 3 seconds; dissipation constant of approximately 4 to 4.5 mW/°C in still air
Operating & Ambient Thresholds: Module operating range of -20°C to +105°C; allowable ambient storage/air temperature of 0°C to 100°C
Physical Housing Dimensions: Compact inline body measuring 52.6mm ±0.6mm in length with a outer diameter (Φ) of 15mm ±0.4mm
Target Applications: Optimized for reliable execution across modern household and commercial water purifiers, smart humidifiers, residential air conditioners, and automated liquid-filtration appliances.
