Levelogger M5~F15 (Solinst)

An inexpensive alternative for measuring groundwater and surface water levels. Combines a datalogger, temperature sensor, Hastelloy® pressure sensor, and 5-year battery in a small, maintenance-free, waterproof stainless steel housing. Compatible with Levelogger Edge software and accessories. One year warranty. 

 Specifications :
- Data storage: 40,000 points with non-volatile EEPROM. 
- Sample interval: 0.5 seconds to 99 hours. 
- Sampling modes: linear. 
- Level sensor: 
  - Accuracy: 0.1% FS. 
  - Resolution: 
    - F15 Model, 0.028%; 
    - F30 Model, 0.021%. 
- Temperature sensor: 
  - Range: -10°C to 40°C. 
  - Accuracy: ±0.1°C. 
  - Resolution: 0.1°C. 
- Battery life: 5 years.