WaterLog Products

H-5223 High Data Rate Goes Transmitter/Logger	H-522+ Data Logger with Integrated HDR GOES Transmitter	H-522 Data Logger with Integrated HDR GOES Transmitter

H-350XL Pressure Measurement System	System 5000 Modular Data Acquisition System with Touch Screen	H-350XL-355 Combination of H-350XL and H-355

H-500XL Data Logger	H-2221 High Data Rate GOES Transmitter with Internal GPS Receiver	H-222DASE HDR Satellite Transmitter

H-522JR HDR GOES Transmitter with Integrated Data Logger	H-3553 Bubbler/Pressure Sensor	H-3551 The "SMART-GAS" System

H-3531 “FlashLite”	H-3611/H-3612/H-3613 SDI-12 Radar Water Level Sensors	H-3121/H-3122 Submersible Pressure/Temperature Sensor

H-310 Submersible Pressure/Temperature Transducer	DH-21 Submersible Pressure/Temperature Transducer/Data Logger	H-2191 Voice/Data Modem Series

H-3521 Non-Submersible Pressure Transducer	H-3301 Shaft Encoder	H-3311 SDI-12 Shaft Encoder with LCD Display

H-3342 Absolute SDI-12 Shaft Encoder	H-424MS Spread Spectrum SDI-12 Radio Bridge	H-4400 RS-232 Radio Transceiver

H-4401 & H-4410 Radio Links & Tranceivers	H-264 ALERT Serial Interface	H-336 Linear Cable Extension Transducer with SDI-12 Output

H-335 Precision Inclinometer With SDI-12 Output	H-340 Tipping Bucket Rain Gauge	H-340SDI Tipping Bucket Rain Gauge with SDI-12 Output

H-375 High Performance Wind Sensor	H-377 Air/Water/Soil Temperature Sensor	H-378 Barometric Sensor

H-380 Relative Humidity / Temperature Probe & Radiation Shield	H-3791 Silicon Pyranometer Sensor	H-411 Quadrature to SDI-12 Converter

H-412 Event Counter Converter	H-413 Switch Output Converter	H-415 Analog to Digital Converter

H-4161 SDI-12 to 4-20mA Interface	H-418 Remote Display Interface	H-4191 RS-232 to SDI Host Interface

H-423 SDI-12 to RS-485 Converter	H-4501 SDI-12 Fiberoptic Media Converter	Solar Night Switch

The Storm

Data Acquisition

System 5000™

H-500XL

Data Acquisition with
Satellite Communications

H-522+™

H-522

H-5223

Data Acquisition with
Pressure Measurement

H-350XL

Satellite Transmitters

H-2221

Radio Transmitters

H-424-MS

H-4400

H-4401-M/S & H-4410 M/S

Alert Modules

Data & Voice Modems

Submersible Sensors

Non-Submersible Sensors

H-3551 "Smart Gas" Bubbler

H-3531 "FlashLite" Pressure

H-3553 Bubbler & Pressure

H-3521 Pressure Sensor

Non-Contact Sensors

H-3611 / H-3612 / H-3613

Position Indicators

Shaft Encoders

Met Sensors

H-377 Air/Water/Soil Temp

H-378 Barometric Sensor

H-380 Relative Humidity

H-3791 Pyranometer

Other YSI Products

YSI Water Quality Instruments

SonTek Acoustic Doppler Systems for water velocity

YSI Systems & Services

Environmental Stewardship

Sustainability Report

Quality

The YSI Foundation

WaterLog manufactures a wide varity of Hydrological equipment which are being used worldwide in all types of applications from HydroMet systems to control applications.