Specifications include, but are not limited to: Multi-Parameter Water Quality Meters w/ GPS & Accessories Pro DSS Multi-Parameter Water Quality Meters or APPROVED EQUAL BRAND/MODEL#_______________________________________________________ These meters SHALL have the following components and capabilities as the following: These meters SHALL provide digital sampling for the measurement of optical DO, turbidity, conductivity, pH, ORP, ammonium, nitrate, chloride and temperature along with depth. Meters SHALL have digital smart sensors that automatically recognize by the instrument and store calibration data. SHALL have a long-life lithium battery SHALL have a 3 year instrument warranty SHALLL have a 2 year cable warranty Any sensor can be installed in any of the 4 sensory ports, allowing for measurement of any combination of parameters. The meters SHALL feature a waterproof case with rubber over mold and metal, military-spec cable. Meters SHALL have graphic, backlit, color display and backlit keypad Meters SHALL have 100,000 data-set memory and KorDSS PC Data Software SHALL be included. ACCESSORIES TO BE INCLUDED: 3 each - Pro DSS 4-Port cable assembly with depth sensor, 20m 3 each -Pro DSS pH/ORP sensor 3 each - Pro DSS optical dissolved oxygen senor 3 each - Pro DSS conductivity & temperature sensor 3 each - 3842 ammonium standard (10mg/L, 500 mL) 3 each - Pro DSS large hard-sided carrying case for up to 30m cable 3 each - 5580 confidence solution for conductivity, ORP, & pH (6 pints) 3 each - Pro DSS USB car charger adapter, 12V DC 3 each - 614 Ultra C-Clanp