Handheld ppm meter designed for reliable, repeatable measurements of dissolved solids in liquids. Key benefits Accurate, temperature-compensated readings: Automatically calibrated per temperature to reduce error caused by thermal variation. ATC (Automatic Temperature Compensation) improves measurement reliability. Wide measurement range and fine resolution: 0 - 9999 ppm measuring range with 1 ppm resolution for both low and high concentration liquids. Dependable accuracy: +/- 2% reading accuracy for consistent results you can trust. Easy reading and recording: Data hold function freezes the displayed value when you lift the probe out of the liquid, making transfer and documentation simple. Battery-friendly operation: Auto-off function automatically shuts off the meter after 10 minutes of non-use to conserve batteries. Temperature readout: Built-in temperature function lets you monitor liquid temperature alongside ppm for better process control and interpretation. Performance and compatibility Function: Measures parts-per-million (ppm) of dissolved solids with ATC and simultaneous temperature measurement. Compatibility: Suitable for use with common aqueous liquids and processes where ppm/TDS and temperature are relevant (see applications below). Portability: Handheld operation and data hold make the device practical for field, lab, and onsite use. Reliability: Combination of ATC, stable resolution, and stated accuracy supports routine monitoring, troubleshooting, and documentation. Typical applications Aquariums and aquaculture: Monitor water quality and make timely adjustments to protect fish and invertebrates. Hydroponics and agriculture: Track nutrient concentration and temperature to keep plants within target ranges. Drinking water and pool maintenance: Verify dissolved solids and temperature for safety, compliance, and comfort. What you get A ppm meter with automatic temperature calibration, ATC, temperature readout, data hold, and 10-minute auto-off. Measurement capabilities: 0 - 9999 ppm range, 1 ppm resolution, +/- 2% reading accuracy. Use this meter when you need a portable, temperature-aware instrument to deliver precise ppm readings and simple, reliable operation for routine quality checks and process monitoring.