Features:Hand-held design and non-slip pen handle for easy operation.Built-in automatic temperature compensation (ATC) for precise results.Measuring range: 1.00ppt-9.99ppt, 10.0ppt-100ppt, very easy to test.The temperature unit is C/F (switchable) to meet the needs of use in various environments.With LCD display, the backlight can be switched for easy use in the dark.Configurable replaceable sensor probes - Electrode probes can be replaced with a plug-in design for quick and easy replacement.Applicable to water source monitoring, aquaculture, environmental protection, printing and dyeing, electroplating, beverage industry and scientific research units to determine water salinity.It will automatically shut down without any operation within 5 minutes.Specifications:Condition: 100% Brand NewMaterial: PlasticSalinity measuring range: 1.00ppt-9.99ppt10.0ppt-100pptResolution: 0.01ppt/0.1pptAccuracy: +1-3%F.S.+/-1 digitInstrument Repeatability: +/-0.01ppt/0.1pptSolvent temperature compensation range: 0-60Temperature accuracy: +/-1Power Supply: 2 * AAA batteries (not included)Display: Large LCD segment type displayWorking temperature range: 0~50Working humidity range: 0%RH~80%RH(non-condensing)Size: approx. 177*43*43mm / 7 x 1.7 x 1.7inPackage list:1 * Salinity Meter (Battery not included)1 * Instruction Manual.Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.