HOBO MX800 Series Water Data Loggers

Reference MX800

Manufacturer: Onset

Condition: New

Highly versatile, modular wireless loggers that integrate sensors (purchased separately) for measuring water conductivity/salinity, depth, temperature (CT/CTD), and dissolved oxygen.

"The HOBO MX80X stands out for its ability to provide accurate data and its ease of use, making it an ideal solution for efficient energy consumption management."

IMPORTANT INFORMATION
Requires the HOBOconnect mobile app and a compatible mobile device or Windows computer. System requirements for the app can be found at the bottom of our HOBOconnect software page.

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OVERVIEW
SPECIFICATIONS
VIDEO
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HOBO MX80X Download (1.14M)

The HOBO MX80X Data Logger allows precise monitoring of energy consumption in individual devices. Ideal for energy audits, energy usage studies, and resource optimization, this device stands out for its ease of use and its ability to continuously and accurately record data. It uses Bluetooth technology for easy and wireless data configuration and download, providing an effective and cost-efficient solution for energy management.

WebStorage Service

The free HOBO WebStorage service allows sharing and managing recorded data in remote locations. Users can check the current conditions of the data loggers, such as battery level and signal strength. The storage capacity is 20MB, and data can be accessed from any browser or mobile applications available for iOS and Android devices.

Key Features

Compatible with interchangeable Conductivity, CTD (conductivity/temperature/depth), and DO sensors (sold separately) - swap out sensors for different applications
Bluetooth, for easy logger configuration and data offload
Easy to deploy, fully submersible (MX801)
Direct read for convenient data offload (MX802)
Logger diameter is less than 2 inches
Faster data offload via Bluetooth 5.0
Water detect feature indicates when logger was out of the water (MX801)
Barometric pressure sensor included (MX802)
Connect two sensors to one logger to get measurements like salinity adjusted DO directly, with no need for post-processing
Guided calibration ensures accurate data
User-replaceable batteries

Specification	Details
Operating Range	-40° to 50°C (-40° to 122°F), cannot be frozen in ice
Radio Power	1 mW (0 dBm)
Transmission Range	Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard	Bluetooth 5
Number of Sensors that can be Connected	2
Maximum Cable Length	120 m (400 ft)
Logging Rate	5 seconds to 18 hours
Logging Modes	Fixed interval (normal or statistics), burst, or multiple intervals with up to 8 user-defined logging intervals and durations, with pause and repeat options
Start Modes	Immediate, next interval or date & time
Stop Modes	Memory full, never stop (overwrite oldest data), date & time, or after a set logging period
Water Detect	Events are logged when logger is submerged or removed from the water (MX801 only)
Time Accuracy	±1 minute per month 0° to 50°C (32° to 122°F)
Battery	Four AA, 1.5 V lithium batteries, user replaceable
Battery Life	With W-CTD or W-CT sensors: 2 years, typical with 1-minute logging interval or slower With W-DO sensor: 1 year, typical with 5-minute logging interval or slower Faster logging or statistics sampling intervals, entering burst logging mode, excessive readouts, and remaining connected with the app will impact battery life
Memory	730,000 measurements, divided between channels (4 Mbyte memory)
Data Download Time (with Bluetooth 5+ devices)	Full memory: Approximately 3.5 minutes 120,000 measurements: 1 minute May take longer the farther the device is from the logger
Barometric Pressure (MX802 only)	Measurement & Calibrated Range: 66 to 107 kPa (9.6 to 15.5 psia), -20° to 50°C (-4° to 122°F) Accuracy: Typical error: ±0.2 kPa (0.029 psi), Maximum error: ±0.5 kPa (0.073 psi) Resolution: <0.01 kpa="" 0="" 0015="" psi="" br=""> Pressure Response Time: <1 second="" to="" 90="" at="" a="" stable="" temperature="" br=""> Contribution to Water Level Accuracy: Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water, Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water
Dimensions	Logger diameter: 4.14 cm (1.63 inches) Length without sensor: 20 cm (8 inches) Length with W-CTD sensor: 36 cm (14 inches) Length with W-CT sensor: 33 cm (13 inches) Mounting loop: 12.7 x 22.6 mm (0.5 x 0.89 inches)
Weight	MX801 Logger Head Only: 224 g (7.90 oz) MX802 Logger Head Only: 226 g (7.97 oz)
Wetted Materials	Logger: PVC housing with polyester film label, PET sensor connector end cap and mounting handle with EPDM and Buna-N O-rings, passivated 316 stainless steel hardware rated for use in saltwater; MX802 also has ePTFE vent Collar: HDPE, titanium screws Note: logger should be mounted so that no metal parts of the logger are in contact with other metals
Depth/Environmental Rating	MX801: IP68; waterproof to 100m (with sensor(s) attached) MX802: IP67, NEMA 6; Weatherproof (with cable or Termination Plug attached); this model is not waterproof
Certifications	The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). The UKCA marking identifies this product as complying with all relevant directives in the UK Declaration of Conformity.