In-Situ
In-Situ Inc. designs, manufactures, instrumentation for measuring water. Applications include water and wastewater treatment, aquifer characterization, mining, oil/gas, remediation, aquaculture, and more.
Product Categories
![In-Situ - Rugged TROLL 100 Data Logger](http://sensorpros.com/cdn/shop/products/Rugged_TROLL_100-1024x791_large.jpg?v=1701989771)
Records water level, pressure, and temperature. Non-vented only options available. Periodic data download.
![In-Situ - Rugged TROLL 200 Data Logger](http://sensorpros.com/cdn/shop/products/Rugged_TROLL_200_w_cable-1024x791_large.jpg?v=1701990027)
Records water level, pressure, and temperature. Non-vented only options available. Use for real-time data applications.
![In-Situ - Rugged BaroTROLL Data Logger](http://sensorpros.com/cdn/shop/products/Rugged_BaroTROLL-1024x791_large.jpg?v=1701989775)
Records barometric pressure to compensate for changes in water level due to barometric fluctuations. Titanium construction, 1-inch diameter.
![In-Situ - Level TROLL 400 Data Logger](http://sensorpros.com/cdn/shop/products/Level_TROLL_400-1024x791_large.jpg?v=1701989788)
Non-Vented only (for vented use Model 500). The model 400 records water level, pressure, and temperature.
![In-Situ - Level TROLL 500 Data Logger](http://sensorpros.com/cdn/shop/products/Level_TROLL_500-1024x791_large.jpg?v=1701989822)
Vented only. Increased accuracy compared to non-vented units (i.e. LevelTroll 400). Records water level, pressure, and temperature in sub-1 inch applications.
![In-Situ - Level BaroTROLL - Precision Pressure Barometer](http://sensorpros.com/cdn/shop/products/BaroTROLL-1024x791_large.jpg?v=1701989895)
Accuracy: ±0.05% FS TEB from -5 to 50° C (23 to 122° F). Highly Recommended. Includes mA, ModBus and SDI-12 Outputs. Eliminates the need for an STE (Sensor Termination Enclosure) for maintenance-free operation.
![In-Situ - Level TROLL 700 Data Logger](http://sensorpros.com/cdn/shop/products/Level_TROLL_700-1024x791_large.jpg?v=1701989741)
Vented and Non-Vented. Specialized for aquifer characterization. Records water level, pressure, and temperature.
![In-Situ - Level TROLL 700H Data Logger](http://sensorpros.com/cdn/shop/products/Level_TROLL_700H-1024x791_large.jpg?v=1701989729)
Vented only. Meets the OSW Surface-Water Specification. Records water level, pressure, and temperature.
![In-Situ - Water Level Meter 200](http://sensorpros.com/cdn/shop/products/Water_Level_Meter_200_575x432_85a0f38e-a4f1-43e9-9a4f-2b1884199635_large.jpg?v=1701989750)
Engineer-grade tape designed for groundwater professionals, with high-tensile steel tape and stainless steel conductors. Available in various sizes and lengths.
![In-Situ - Water Level Meter 100](http://sensorpros.com/cdn/shop/products/Water_Level_Meter_100_575x432_4a924caf-f79e-49c7-8bac-a0bad2339a87_large.gif?v=1701989900)
The Water Level Meter 100 is an economical model, with a Kevlar-reinforced polyethylene tape and stainless steel conductors. Available in various sizes and lengths.
![In-Situ - PXD-261 Pressure Transducer](http://sensorpros.com/cdn/shop/products/PXD-261_Pressure_Transducer-1024x768_large.jpg?v=1701989863)
Measures water pressure with 4-20 mA output signal. Quick disconnect cable attaches to pressure sensor.
![In-Situ - Aqua TROLL 500 Multiparameter Probe](http://sensorpros.com/cdn/shop/products/aqua-troll-500-ar-16-9-w2000-1_large.jpg?v=1701989713)
Flexible multi-parameter sonde with interchangeable sensors, the Aqua TROLL 500 replaces multiple instruments and saves time in the field to reduce overall monitoring costs.
![In-Situ - Aqua TROLL 600 Multiparameter Probe](http://sensorpros.com/cdn/shop/products/at600b-ar-16-9-w2000_1_large.jpg?v=1701989827)
Flexible multi-parameter sonde with interchangeable sensors, and internal power and data logging. The Aqua TROLL 600 replaces multiple instruments and saves time in the field to reduce overall monitoring costs.
![In-Situ - Aqua TROLL 400 Multiparameter Probe](http://sensorpros.com/cdn/shop/products/Aqua_TROLL_400-1024x768_large.jpg?v=1701989860)
All-in-one multiparameter process probe designed to measure 12 water parameters.
![In-Situ - RDO PRO-X Dissolved Oxygen Probe](http://sensorpros.com/cdn/shop/products/RDO_PRO_X-1024x791_large.jpg?v=1701989824)
Low maintenance optical measurement of dissolved oxygen and temperature in process applications.
![In-Situ - smarTROLL Handheld with RDO Probe](http://sensorpros.com/cdn/shop/products/smarTROLL_RDO_Handheld_Android_VuSitu-1024x768_large.jpg?v=1701989805)
NEW! Use your iOS™ or Android™ mobile device to check dissolved oxygen levels instantly.
![In-Situ - Aqua TROLL 200 Data Logger](http://sensorpros.com/cdn/shop/products/Aqua_TROLL_200-1024x768_large.jpg?v=1701989943)
Measures and records water level & pressure, conductivity, and temperature. Vented or non-vented. Sensor body is made of titanium.
![In-Situ - Aqua TROLL 100 Data Logger](http://sensorpros.com/cdn/shop/products/Aqua_TROLL_100-1024x768_large.jpg?v=1701989843)
Measures and records conductivity and temperature, the sensor body is Titanium construction.
![In-Situ - Wireless Rugged TROLL Com (P/N: 0031220)](http://sensorpros.com/cdn/shop/products/Wireless-Rugged-Troll-Com-1024x576_large_e41380b8-6e2c-4dec-ba95-b812ed17774f_large.jpg?v=1701990062)
Provides wireless communication between a cabled, deployed Rugged TROLL 100 or 200 and a PC/laptop or Android mobile device.