15 IN 1 MULTI FUNCTION: Measures water quality parameters including EC, TDS, SG, salinity, and temperature with simple and fast operation ACCURATE PROBES: High-performance probes provide reliable and precise results with quick response time BACKLIGHT DISPLAY: LCD screen with white backlight for clear and easy reading of test data in low-light conditions WIDE RANGE OF APPLICATIONS: Suitable for use in fishing, aquaculture, laboratory water testing, swimming pools, aquariums, and more DURABLE CONSTRUCTION: Made from scratch-resistant and impact-resistant ABS material; environmentally friendly Specification Item Type: Water Quality Meter Product Size: Approx. 15.5 x 3 x 1.5 cm / 6.1 x 1.2 x 0.6 in Measurement Range: EC: 0–19990 µs/cm; 0–199.0 ms/cm TDS: 0–9990 ppm; 0–199.0 ppt Salt: 0–199.9 ppt; 0%–20.0% S.G: 1.000–1.400 Temperature: 0–50°C (32–122°F) Battery: 1 x 3V CR2032 button battery (not included) Temperature Compensation: 0–50°C Working Temperature: 0–50°C Applications: Suitable for fishery, aquaculture, laboratory drinking water testing, swimming pools, aquariums, etc. Material: ABS Weight: 67 g (approx.) Package List 1 x Water Quality Meter 1 x User Manual