Onset HOBO U20L [U20L-01] Freshwater/Saltwater Water Level Data Logger, 0-9 m (0-30 ft)

The Onset HOBO U20L-01 Water Level Data Logge is a low-cost, research-grade instrument for continuously measuring water level and temperature in a wide range (up to 30 feet) of underwater environments. It features 0.1% measurement accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

Note: A calibration certificate is not offered for this logger. If you require a NIST-traceable calibration certificate, please see the U20-001-01 (freshwater) or U20-001-01-Ti (saltwater) data loggers.

Note: U20L-01 data loggers require the HOBOware software (free to download) to operate. Please also note that a USB interface cable comes with the purchase of a HOBOware Pro CD (BHW-PRO-CD), only.