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Model 301 Water Level Temperature Sensor

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Available for Rent, price on enquiry.

Model 301 Water Level Temperature Sensor

Price on request

The Solinst 301 Water Level Temperature Sensor is a compact, all in-one submersible hydrostatic level transmitter that provides continuous, stable and accurate water level and temperature readings for a wide variety of applications.

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The Solinst 301 Water Level Temperature Sensor is suited to a large number of applications and can for example be used to measure hydrostatic liquid levels, long-term, in:

• Groundwater, wells
• Rivers, canals, lakes, reservoirs, seawater, etc.
• Drinking water
• Wastewater
• Industrial and marine tanks and vessels
• Stormwater structures
• Landfill and other contaminated outflows

Main features include:

• Absolute or vented pressure sensor for highly accurate water level measurements: 0.05% FS
• There are six pressure ranges to choose from (5-200 m), with options for absolute and gauge (vented) pressure sensor setups.
• Single probe can be programmed for use with either MODBUS or SDI-12 protocol
• Built-in hydrophobic filters and no desiccants to replace (vented version)
• Easy to integrate into existing monitoring systems
• Simple software utilities for setup, diagnostics and firmware upgrades
• Compact, narrow diameter housing (22mm) for discreet installations
• Robust sensor housing design features double o-ring seals for advanced leakage protection
• Strong cables for reliable deployment to 300 m
• 1/4″ NPTM threading for connection to pipes and conduits

Additional information

Probe size

22mm x 192mm (7/8" x 7.55")


± 0.05% FS (Level Sensor), ± 0.05ºC (Temperature Sensor)

Submergence depth

100m (absolute only), 10m, 200m (absolute only), 20m, 30m (absolute only), 5m

Operating Temperature

-20°C to 80°C


Bare Sensor

Available for Rent







Our sales staff are highly trained and would be happy to take your call or email to discuss any product or service. We provide obligation-free quotes on everything from single dataloggers to large monitoring programs!