Underwater PAR Data Logger

Delivers highest-accuracy measurements of photosynthetically active radiation (PAR), temperature, and tilt for both underwater and above water environments.

• Provides the highest accuracy data using the LI-192 Quantum sensor, the industry standard for logger calibration with built-in measurement averaging to filter out environmental noise

• Easily attaches to available wipers for keeping the sensor window clear and mounts on available wipers
• Streamlined logger configuration, data offload, data visualization and data sharing, all within the free HOBOconnect app
• Convenient and reliable wireless data offload eliminates having to open loggers, connect cables or bring laptops to wet locations
• Data quality control from a tilt sensor and a water-detect sensor
• Provides PAR data for both water and air calibrations
• Simplifies data management and reduces the amount of equipment you need to offload data with single platform
• Supports optimal aquaculture site selection and design
• Rugged and reliable housing and sensor materials provide years operation in harsh aquatic environments
• Recalibration options: LI-COR for factory recalibration service or self-calibrating against a precision reference

Designed for ecosystem research, protection and restoration, with a compact, rugged, and waterproof design rated for fresh and saltwater environments, the Bluetooth Underwater PAR logger effectively delivers research-grade sensor performance in an easy-to-use, affordable package.

It integrates the LI-COR LI-192 quantum PAR sensor that provides the industry's highest-accuracy underwater light measurement, plus sensors for temperature and tilt. With both water and air calibration factors, this multiparameter logger provides accurate PAR data in either environment. This logger is designed to be easily mounted onto third-party wipers like the ZebraTech Hydro-Wiper (sold separately) using the clamp, which can be deployed with the underwater lowering frame and/or rebar stakes using the mounting bracket.

Users can deploy this logger in minutes, configure logging intervals via the free HOBOconnect app, which allows you to wirelessly retrieve data with mobile device, and eliminating the need to take laptop into the field.

Temperature drift: <0.01 °C (0.018 °F) per year
Photosynthetically Active Radiation (PAR) Offset: +/-1 μmo
Operating range: -20 to +50 °C; fresh or saltwater; cannot be frozen in ice

Accessories information: Bracket Mount for Underwater PAR Logger accessory (sold separately) - A key deployment accessory for underwater monitoring, this plate is specifically engineered to attach the complete underwater PAR logger assembly to a rebar stake, with slots that allow you to rotate the plate so that the logger is tilt-corrected. Requiring only four screws, the plate has a hole configuration that streamlines the mounting of ZebraTech's Hydro-Wiper battery pack and clamp assembly that securely holds the underwater PAR data logger. ZebraTech Hydro-Wiper sold separately; contact Ward's® representative for more information. Includes Bracket Mount for underwater PAR logger only. Lowering Frame for Underwater PAR Logger accessory (sold separately) - Designed to secure and lower the complete ZebraTech Hydro-Wiper/Clamp and underwater PAR logger assembly for underwater monitoring applications. A key deployment accessory for underwater monitoring, this lowering frame and mounting accessory is specifically engineered to attach ZebraTech's Hydro-Wiper battery pack and clamp assembly that securely holds an Underwater PAR data logger. ZebraTech Hydro-Wiper sold separately; contact Ward's® representative for more information. Includes: lowering frame for underwater PAR logger only. ZebraTech Wiper Clamp accessory (sold separately) - Designed to secure the underwater PAR logger to ZebraTech Hydo-Wiper for deployment in underwater monitoring applications. This clamp attaches the submersible underwater Par logger to the ZebraTech Hydro-Wiper so that the entire assembly can be mounted and secured to either the lowering frame and/or rebar mounting bracket. ZebraTech Hydro-Wiper sold separately; contact Ward's® representative for more information. Includes clamp for the underwater PAR logger only.

Ordering information: ZebraTech Hydro-Wiper sold separately; contact sales representative for more information. The FREE HOBOconnect app, and a compatible mobile device or Windows computer are required.

Delivery information: Includes data logger, magnetic activation FOB, light sensor cap.