Specifications include, but are not limited to: Specifications: Includes battery power, datalogging, LCD and micro SD (comes with 2 D-cell alkaline batteries, dual restrictor/storage cup with weighted restrictor, software CD, 2 rubber bumpers) – For individually purchased sondes – does not include sensors Allows you the ability to collect and analyze data using the VuSitu Mobile App Low power consumption with 9+ months of battery life, and advanced antifouling to protect all sensors Base sensor configuration includes EPA-approved optical RDO, pH/ORP, turbidity, conductivity, temperature, and pressure Compatable with Ammonium, chloride and nitrate ISE nutrient sensors available Compatable with Rhodamine WT, Chlorophyll a, and Blue Green Algae – Phycocyanin (BGA-PC) and Phycoerythrin (BGA-PE) – sensors available. Long-term pH stability: the Aqua TROLL 600 pH change is 0.0008 pH/day, or a change of 0.1 pH in 125 days. Sub-2 inch passive and active antifouling system for all sensors, including cleanable conductivity Vented (gauged) or non-vented (absolute) pressure measurement Wireless Bluetooth® connection to the VuSitu Mobile App for Android or Win-Situ 5 for PC/laptop Site tagging, GPS coordinates, and auto-calibration functions through the VuSitu Mobile App LCD display for visual indication of overall probe functionality and battery, sensor, and log status Internal memory plus an integrated micro SD card for data backup and download Rugged Cable options in poly or Tefzel for use in harsh environments Field-tested design with corrosion-resistant housing NIST calibration report for guaranteed accuracy Dual-sided restrictor acts as a storage cup between deployments Brand: In-Situ; Model: 0074030 (no pressure) Aqua TROLL pH/ORP Sensor Specifications: Has a single-junction, three-electrode sensor with refillable reference solution. Glass electrode pH sensor pH measurement to 0.01 pH resolution with accuracy of +/-0.1 pH unit or better pH sensor change is 0.0008 pH/day, or a change of 0.1 pH in 125 days ORP probe accuracy of +/-5mV across range of +/-1400mV Uses pH electrode consists of pH-sensitive glass with voltage proportional to hydrogen ion concentration Uses potentiometric method for pH measurement ORP sensor uses a potassium chloride (KCl) solution Brand: In-Situ; Model: 0063470 (integrated to the Aqua TROLL 600 sonde)