HOBO Direct Read Water Data Logger MX802

Name: Onset HOBO Direct Read Water Data Logger MX802
Brand: Onset
Price: 804.99 GBP
Availability: InStock

Everything about Marine & Freshwater Measuring Instruments

Brand: Onset

£672.65 0 In stock: 3-6 Weeks

For monitoring water conductivity/salinity, temperature, level and more, the HOBO MX800 series of Bluetooth loggers offer a highly configurable solution.... Show more

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Product description

HOBO MX800 Series wireless data loggers work with interchangeable sensors to provide a highly configurable solution for monitoring water conductivity/salinity, temperature, level, and dissolved oxygen. Available in both an easy-to-deploy, fully submersible model (MX801) and a direct read model (MX802) for convenient data offload that doesn’t require having to remove sensors from the water.

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

Manual

Specifications MX801 and MX802

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: 120m (400 ft)
Logging Rate: 5 second 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 further 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)
Pressure Response Time**: <1 second to 90% at a stable temperature
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

MX801 & MX802 Specs, continued:

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: Approximately xx g (xx oz) in air; approximately xx g (xx oz) in saltwater
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
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