Product Name	Portable TDS Meter
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Product Overview	The Portable TDS Meter is a compact handheld instrument for measuring total dissolved solids in water. Its pocket-sized waterproof construction, simple controls and automatic temperature compensation make it suitable for routine field testing and daily water quality checks. For commercial livestock operations, the meter can be used to compare TDS levels at water sources, storage tanks, filtration equipment and drinking-water distribution points. It is also suitable for agricultural contractors, farm engineering teams, livestock equipment distributors and technical service personnel.
Key Features	• TDS measurement range of 0 to 2000 ppm (mg/L). • Slim and ergonomic pocket-sized construction. • Waterproof housing for convenient field operation. • Floating design helps recover the tester if accidentally dropped into water. • Large multi-level LCD for clear TDS and temperature display. • Automatic temperature compensation from 0 to 50°C. • Graphite sensing electrode designed to resist oxidation and polarization effects. • Simple two-button operation for efficient routine testing. • Automatic one-point calibration at 1382 ppm. • Stability indicator identifies when the measurement is stable. • Selectable automatic shut-off helps conserve battery power. • Low-battery indication supports routine maintenance planning.
Structural Components	The tester consists of a compact waterproof housing, multi-level LCD, operating buttons, battery compartment, graphite TDS sensing electrode and integrated temperature sensor. The graphite electrode is designed for amperometric TDS measurement. Its material helps minimize oxidation and polarization effects during repeated measurements. The exposed temperature sensor provides rapid response for automatic temperature-compensated testing. The approximately 17 mm thick body is designed for easy handheld operation and convenient storage in a technician's tool case, maintenance kit or pocket.
Working Principle / Structural Principle	TDS testing is based on the electrical conductivity characteristics of the water sample. Dissolved ionic substances influence water conductivity, and the tester converts the measured electrical response into a TDS value using a defined conversion factor. The referenced configuration uses a 0.5 TDS conversion factor. The integrated temperature sensor detects sample temperature and enables automatic temperature compensation, helping reduce the influence of temperature changes on the displayed TDS value. During testing, the sensing portion is immersed in a representative water sample. The sample is gently mixed and the result is recorded after the stability indication confirms a stable reading.
Technical Specifications	Measurement Parameter: Total Dissolved Solids (TDS) TDS Range: 0 to 2000 mg/L (ppm) TDS Resolution: 1 mg/L (ppm) TDS Accuracy: ±2% F.S. TDS Calibration: Automatic, one point at 1382 ppm TDS Conversion Factor: 0.5 Temperature Range: 0.0 to 50.0°C / 32.0 to 122.0°F Temperature Resolution: 0.1°C / 0.1°F Temperature Accuracy: ±0.5°C / ±1.0°F Temperature Compensation: Automatic from 0 to 50°C Sensor: Graphite TDS electrode with exposed temperature sensor Display: Large multi-level LCD Controls: Two-button operation Battery: CR2032 3V lithium battery Battery Life: Approximately 250 hours of continuous use Auto Shut-Off: Selectable at 8 minutes, 60 minutes or disabled Operating Environment: 0 to 50°C / 32 to 122°F; maximum relative humidity 100% Dimensions: 160 × 40 × 17 mm Weight: Approximately 75 g Final supply configuration and accessories are available upon request and according to project requirements.
Applications	• Commercial pig farms and integrated livestock production facilities • Livestock drinking-water quality inspection • Poultry and animal breeding facilities • Farm water treatment and filtration systems • Water storage tanks and drinking-water distribution networks • Livestock drinking-line commissioning and maintenance • Agricultural water supply and irrigation systems • Water conditioning and treatment inspection • Pig farm construction and facility engineering projects • Agricultural contractors, distributors and technical service teams
Customization Options	SHEWUYOU can support livestock groups, agricultural engineering companies, farm contractors, distributors and project procurement teams with application-oriented water testing solutions. • Supply quantities according to project requirements • Calibration solutions and testing accessories available upon request • Replacement components according to product configuration • Distributor and agency procurement arrangements • Bulk supply for multi-house and multi-farm livestock projects • Product and accessory packages designed according to local climate and farm conditions
Installation & Maintenance	No fixed installation is required. Before measurement, rinse the sensing area with purified or clean water and immerse the probe in a representative sample. Gently mix the sample and allow the reading to stabilize before recording. For reliable measurements, calibrate the tester with the specified 1382 ppm TDS calibration standard. Fresh calibration solution should be used to minimize contamination and calibration errors. Rinse the sensing area after each measurement and before testing another sample. Keep the electrode clean and follow the applicable storage instructions. Regular calibration and proper cleaning are recommended, particularly for frequent commercial farm use. Replace the battery when the battery indicator shows insufficient power. Replacement components and maintenance accessories are available upon request.
Project Cases	The Portable TDS Meter can be incorporated into water quality inspection procedures during commercial pig farm construction, livestock facility upgrades and agricultural water system commissioning. Farm engineering teams can perform comparative measurements at groundwater sources, treatment outlets, storage tanks, building inlets and livestock drinking-line endpoints. This provides practical TDS data for routine water system inspection and maintenance. For large-scale livestock projects, multiple testers, calibration solutions and supporting accessories can be supplied according to testing frequency, farm size and project requirements.
Product FAQ	Q: What does the Portable TDS Meter measure? A: It measures total dissolved solids in water and provides temperature-compensated TDS readings. Q: What is the TDS measurement range? A: The referenced configuration measures from 0 to 2000 ppm (mg/L), with 1 ppm resolution. Q: Can it be used for livestock drinking water? A: Yes. It is suitable for routine comparative TDS testing at livestock water sources, treatment systems, storage tanks and drinking-water distribution points. Q: Why is temperature compensation used? A: Water conductivity changes with temperature. Automatic temperature compensation helps reduce the influence of sample temperature variation on the calculated TDS reading. Q: Does the tester require permanent installation? A: No. It is a handheld instrument intended for field testing and routine water quality inspection. Q: Is the housing waterproof? A: The referenced configuration features a waterproof floating housing designed for routine water testing. Q: How is the tester calibrated? A: The referenced configuration uses automatic one-point calibration with a 1382 ppm TDS standard. Q: Can accessories be supplied for commercial projects? A: Yes. Calibration solutions and other applicable accessories can be supplied according to project requirements and are available upon request.
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