HOBO by Onset U20L-04 - Water Level (13 ft) Data Logger

HOBO by Onset U20L-04 - Water Level (13 ft) Data Logger Accurate, affordable water level monitoring Water Level (13 ft) Data Logger Self-contained non-vented design enables easy deployment Durable ceramic pressure sensor withstands freezing Ideal for use in both fresh and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas The HOBO U20L-04 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range 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 U20-001-04 (freshwater) or U20-001-04-Ti (saltwater). Important Info: This logger requires HOBOware Pro software and either a U-DTW-1 Waterproof Shuttle or the Base-U-4 Optic USB Base Station for configuration and data offload. U20 Series - Water Level Data Loggers U20-001-04 HOBO 13-Foot Depth Fresh Water Level Data Logger U20-001-04-Ti HOBO 13-Foot Depth Titanium Water Level Data Logger U20-001-01 HOBO 30-Foot Depth Fresh Water Level Data Logger U20-001-01-Ti HOBO 30-Foot Depth Titanium Water Level Data Logger U20-001-02 HOBO 100-Foot Depth Fresh Water Level Data Logger