Features: For measuring pH value and salinity value simultaneously. Dual LCD screen for reading out tested pH and salinity values. PH/Salinity meter with measure of 0.00~14.00pH(PH) 0~199.9ppt(salinity). Compact design testing meter is easy to install and use. Widely for seawater horticultural and hydroponics applications. Specifications: Plug Type: / / UK (Optional) Material: ABS : pH: 0.00~14.00 salinity: 0~199.9ppt Resolution: pH: 0.01PH salinity: 0.1ppt Accuracy: ±0.1pH salinity ±2%F.S Temperature Compensation: 0~50°C Operating Temperature: 0~50°C Item Size: 130 * 77 * 27mm / 5.12 * 3.03 * 1.06in Item Weight: 155g / 5.47oz Package Weight: 543g / 19.15oz Package Size: 31 * 18 * 7cm / 12.20 * 7.09 * 2.76in Package List: 1 * PH/Salinity Meter 1 * Probe 1 * Plug with Cable 1 * Slotted Screwdriver 1 * Bracket 2 * Suction Cup