Environmental Monitoring Equipment & Supplies • Sales, Rental & Service by Enviro-Equipment — Charlotte, North Carolina USA

No Longer Available For Rental

The TROLL® 9500 water quality instrument simplifies multiparameter monitoring. The TROLL 9500 is a powerful, portable unit that houses up to nine water quality sensors, internal power, and each rental includes the durable RuggedReader® handheld PC for data logging capabilities.

  • Dissolved Oxygen (% & mg/L)
  • Conductivity, Resistivity, TDS
  • Temperature
  • pH
  • ORP
  • Salinity
  • Barometric Pressure
  • Turbidity
Rental Includes:
TROLL 9500
WinSitu 5 Software
Cable Connection Adapter
Flow Cell
Instruction Manual
Spare Batteries
PC Data Cable
EEI Calibration Record
Quick Calibration Solution
Calibration Cup
Probe Guard
Hard Case
Cables (50 & 100ft increments)

Higher Reliability

Corrosion-resistant housing suitable for fresh, waste, and marine waters. Field-replaceable sensors for easy maintenance and calibration

Easy Operation

Innovations like Quick Cal check solutions, twist-lock cable connectors, and user-friendly software make your job easier.

Physical Features:

  • Smart Sensors that are 'Plug and Play' remember calibration
  • Dissolved Oxygen -- Constant Power for Maximum Accuracy
  • Single "Quick-Cal" solution -- calibrate most sensors at the same time!
  • Pre-Calibrated and ready to use -- Ready to use right out of the box!
  • Internal datalogger with up to 4MB (1,760,000 data points!) (Professional XP Only)
  • User-replaceable, powerful D batteries provide maximum power -- up to 6 months.
  • Vented Quick-Connect cable (FEP) -- Fully detachable!
  • Internal barometric sensor -- record real-time barometric changes

Environmental monitoring

Estuary evaluations

Long-term deployments

Low-flow sampling

Mine water quality analysis

Remediation projects

Spot checking

Stormwater outfall studies

Surface water testing

TMDL assessments

Vertical profiling

Parameter Range Resolution Accuracy Measuring Principal
pH pH 0 to 12 0.01 pH ±0.1 pH Glass sensing bulb,
single-junction electrode, replaceable ceramic junction, refillable reference electrolyte
Dissolved Oxygen 0 to 20 mg/L,
0 to 200% saturation
0.01 mg/L ±0.2 mg/L Clark polarographic
Conductivity 5 to 20,000 μS/cm Range-dependent ± 0.5% or 2 μS/cm (whichever is greater)
4-cell conductivity, AC drive
Salinity -------- ------- ------- Conductivity Conversion
Temperature -5°C to 50°C 0.01 °C plusmn;0.1 °C Platinum resistance thermometer
Turbidity 0-2000 NTU 0.1 NTU ± 5% or 2 NTU (whichever is greater) Nephelometer,
90° light scattering, 870
nm LED, solid-state
Barometric Pressure 0-16.5 psia (854 mm Hg, 33.6 in Hg) 0.1 mm Hg, 0.01 in Hg ± 0.3% FS (2.54 mm Hg, 0.1 in Hg) Piezoresistive silicon pressure sensor
Oxidation Reduction Potential ± 1400 mV 1 mV ± 4 mV Platinum Wire
Title Description Download
Insitu Troll 9500 Manual Operator's Manual PDF Icon
Insitu Troll 9500 Quick Start Guide Quick Start Guide PDF Icon