  | NexSens AccuStage Water Level Sensor Available in stainless steel or titanium construction, the NexSens AccuStage water level sensor provides highly accurate vented level measurements in surface or groundwater applications. | 
| |  | OTT PS1 Water Level Sensor The OTT PS1 is an easy-to-use, easy-to-maintain pressure and level probe. It is completely self-contained and features a durable, corrosion-resistant stainless steel body. |
| |  | YSI Level Scout Vented Level Logger The Level Scout by YSI combines advanced pressure sensor technology with ultra low power electronics and data logging for high accuracy vented water level measurements. |
| |  | Solinst Levelogger Gold Absolute Level Logger Levelogger Gold combines a data logger, 10-year battery, pressure transducer and temperature sensor, in a small package in a small, minimal maintenance stainless steel housing. |
| |  | Solinst Levelogger Junior Absolute Level Logger Levelogger Junior combines a data logger, temperature sensor, pressure transducer, and 5-year battery, in a small, maintenance free, waterproof stainless steel housing. |
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