In-Situ Level TROLL 400 Data Logger
Unless you need vented level data, the Level TROLL 400 is In-Situ's low-maintenance option: it measures and logs water level, water pressure, and temperature in non-vented (absolute) pressure ranges, with no desiccant required. That makes it ideal for long-term monitoring at flood-prone or high-humidity sites where a vented cable isn't practical.
3D factory calibration and In-Situ's anti-drift system keep readings accurate, and durable titanium construction withstands harsh conditions in fresh or saltwater, groundwater or surface water. As part of In-Situ's shared ecosystem, it integrates easily with accessories, in-well telemetry, VuLink, and HydroVu Data Services, and Smart Addressing means you can swap in another In-Situ device without reprogramming.
Note: Twist-Lock Backshell/Hanger sold separately.
- Non-vented (absolute) pressure sensing eliminates the need for a desiccant-protected vent cable
- 3D factory calibration with anti-drift system for long-term accuracy
- Titanium construction withstands fresh water, saltwater, and contaminated groundwater
- Smart Addressing lets you swap in another In-Situ device without reprogramming
- Integrates with VuLink telemetry and HydroVu Data Services for remote access
- Low-maintenance design suited to flood-prone or high-humidity sites
- Long-term groundwater monitoring in flood-prone areas
- High-humidity sites where vented cables are impractical
- Surface water level monitoring in fresh or saltwater
- Remote telemetry-connected monitoring networks
- Multi-site programs benefiting from device interchangeability
- General absolute water level and temperature logging