Monitor temperature, DO, pH, conductivity, and 5 additional parameters at the same time
High quality, rugged sensors
Battery powered for remote locations
User-friendly Windows ™ and Windows ™ CE-based PDA software included
Four sample modes: timed, 10 times per second, logarithmic, and exception
Both USB and serial communication ports
Rugged, lockable, weather resistant enclosure

WQMS Water Quality Monitoring System allows you to monitor multiple water quality parameters with a fully integrated, easy to use, economical system. The standard Water Quality Monitoring System includes our multichannel datalogger (featuring 7 analog channels and 2 digital channels for data recording) and four of our rugged 4-20 mA water quality sensors for measuring water temperature, pH, conductivity, and dissolved oxygen. To customize the Water Quality Monitoring System for your application, you can select up to three more analog sensors and up to two digital sensors to monitor additional parameters such as turbidity, ORP, water level, wind speed / direction, rainfall, and more.

Water Quality Monitoring System Specifications
Global Data Logger
Memory: Non-volatile flash memory
Power: Voltage: 7.2 VDC Min. To 24.0 VDC Absolute Max
Standby Current: 70uA Typical
Logging Current: 5mA Typical + sensor current
Analog Sensor Inputs: 4-20mA (0-5VDC as factory option)
Resolution: 12-Bit, 4096 Steps
Channels: 7 Input channels + battery voltage monitor
Sensor Warm-up Time: Programmable, 0-60 Sec
Digital Inputs: 2 Independent pulse counters
Maximum Input Voltage: 24VDC
Maximum Frequency: 100Hz
Minimum Pulse Width: 2mS
Maximum Count: 65,535 (16-Bit)
Sample Now Input: Sample-on-Demand input, software enabled
Maximum Input Voltage: 24VDC
Minimum Pulse Width: 2mS
Sample Modes: Fixed Interval Programmable from 1 Sec. To> 1 Year
High Speed 10 Samples per second
Logarithmic Sample Rate (Approximation)
Exception (Log only on deviation from previous reading)
Storage Capacity: 40,879 Recordings for all inputs plus time stamp
Data Overwrite: Select memory wrap or unwrap (unwrap will stop logging data once memory is full)
Communication Ports: RS-232 DB9 or USB Type B
Selectable Baud Rates: 9600, 19200, 28800, 38400, 57600, 115200
Clock: Synchronizes to the time and date of user's computer
Operating Temperature: Industrial, -40 to +185 º F (-40 to +85 º C) (Battery may not apply)
Enclosure: Expanded UV protected PVC (5x2x3 inch (12.7x5x7.6 cm))
Weight: 1.5 lbs (680 g) (with weather-proof enclosure)
Data Logger Software
Compatible with Microsoft's Windows 98, ME, 2000, NT, XP, and Vista
Windows and Excel are trademarks of the Microsoft Corporation
Tabular Display / Printout
Data in standard spreadsheet format (. CSV)
Programmable alarm start and stop times
Field calibration software and help files included
NOTE: 64 bit operating systems are not currently supported.
PDA software: CE and Mobile compatible. For more information on supported PDAs click HERE.
Weather-Proof Enclosure
Expanded UV protected PVC (9x7.5x4.5 inch (23x19x11 cm))
Battery: 12 Volt, 2.2 A / hr., Rechargeable (Gell Cell)
Weight: 3.5 lbs (1.6 kg) (with data logger)
Water Quality Monitoring System Temperature Sensor
Range: -58 to +122 ° F (-50 to +50 ° C)
Accuracy: ± 0.2 ° F or ± 0.1 ° C
Maximum Pressure (Open Water): 200 psi
Operating Voltage: 10-36 VDC
Current Draw: Same as sensor output
Warm Up Time: 5 seconds minimum
Operating Temperature: -58 to +212 ° F (-50 to +100 ° C)
Size of Probe: 4-1/2 inch L x 3 / 4 inch Diameter (11.4 cm x 1.9 cm Dia.)
Weight: 8 oz (227 g)
Water Quality Monitoring System pH Sensor
Range: 0-14 pH
Accuracy: 2% of full scale
Maximum Pressure: 40 psi
Operating Voltage: 10-30 VDC
Current Draw: 5.5 mA plus sensor output
Warm Up Time: 3 seconds minimum
Operating Temperature: 23 to 131 ° F (-5 to +55 ° C)
Size of Probe: 10 inch L x 1-1/4 inch Diameter (25.4 cm L x 3.2 cm Dia.)
Weight: 1 lb. (454 g)
Water Quality Monitoring System Conductivity Sensor
Range: 0-5,000, 0-10,000, 0-20,000 Micro Siemens (micro mhos) per cm
Accuracy: 1% of full scale
Maximum Pressure: 50 psi
Operating Voltage: 12VDC (± 5%)
Current Draw: 0.8 mA plus Sensor output
Warm Up Time: 3 seconds minimum
Operating Temperature: -40 to +131 ° F (-40 to +55 ° C)
Size of Probe: 12 inch L x 1 inch Diameter (30.5 cm L x 2.54 cm Dia.)
Weight: 8 oz (227 g)
Temperature Compensation: 2% per ° C
Electrodes: 316 Stainless Steel
Water Quality Monitoring System DO Sensor
Range: 0-100% Saturation, 0-8 ppm, temperature compensated to 25 ° C
Accuracy: ± 0.5% of full scale
Maximum Pressure: 40 psi
Operating Voltage: 10-36 VDC
Current Draw: 15.5 mA plus sensor output
Warm Up Time: 10 seconds minimum
Operating Temperature: -40 to +131 ° F (-40 to +55 ° C)
Membrane: 0.001 FEP Teflon (standard)
Combined Error: 2% FS
Size of Probe: 11 inch L x 1-1/4 inch Diameter (28 cm L x 3.2 cm Dia.)
Weight: 1 lb. (454 g)