Onset

Dissolved Oxygen Level Sensor for Environmental Monitoring

A Dissolved Oxygen and Temperature Sensor for Wse With HOBO MX800 Series Water Loggers

The dissolved oxygen sensor is an interchangeable sensor that works with HOBO MX800 Series Water Loggers to measure dissolved oxygen and temperature.

The DO sensor can be attached directly to the fully submersible MX801 model, or attached via cable to the direct read MX802 model, which doesn’t require having to pull the sensor out of the water to download data.

When this sensor is connected to a HOBO MX800 logger that also has a conductivity or CTD sensor attached, the logger can record salinity-adjusted DO directly. With this sensor attached to the HOBO MX802 direct read model, the logger can calculate DO percent saturation directly. When used with fully submersible HOBO MX801 model, a barometric logger data file (from either an MX802 or MX2001 logger) is needed to calculate DO percent saturation, for post-processing in the HOBOconnect app. In waters with changing salinity, the logger must also have a salinity sensor attached or you will need an MX800 salinity data file to get DO percent saturation.

Features

User-replaceable DO cap lasts 2 years or more

High accuracy measurements, even without calibration

Get salinity-adjusted DO directly when used with conductivity sensor (W-CT or W-CTD), no need for post-processing

Direct DO percent saturation data, no need for post-processing (when used with MX802)

Easy calibration with included calibration boot – saves time

1” diameter for use in narrow wells (with cable to MX802 above the well)

PVC housing holds up in saltwater

Dissolved Oxygen Sensor Specifications
Sensor Type	Optical Sensor (dynamic luminescence quenching)
Measurement Range	0 to 60 mg/L; 0-600% Saturation
Accuracy	Out-of-box: ±0.2 mg/L (typical) over the range of 0 to 20 mg/L ±4% over the range of 20 to 60 mg/L With user calibration: ±0.1 mg/L over the range of 0 to 20 mg/L; ±2% over the range of 20 to 60 mg/L
Resolution	0.01 mg/L
Sensor Drift	Accuracy is maintained for 2 years; aside from the effects of fouling
Response Time	To 90% in less than 45 sec
DO Sensor Cap Life	2 years; after this the sensor will continue to operate, but possibly with less accuracy

Temperature Sensor Specifications
Temperature Measurement/Operating Range	-5 to 50°C (23 to 104°F), non-freezing
Temperature Accuracy	0.15°C (0.27°F)
Temperature Resolution	0.01°C (0.04°F)
Response Time	To 90% in less than 15 minutes
Logging Rate	When using this sensor, the maximum logging rate is 1 min
Depth Rating	IP-68, waterproof to 100 m (328 ft) - must be attached to logger and have DO sensor cap installed
Wetted Materials	Black Delrin®, PVC, EPDM o-rings, rated for saltwater use
Size	To Be Determined
Markings	CE Compliance Mark
CE Compliance	The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

Dissolved oxygen sensor
Dissolved oxygen sensor cap
Calibration boot and sponge

HOBO MX800 Series Water Data Loggers
HOBO connect app
Compatible mobile device or Windows computer

2-Sensor Adapter for MX800 Data Loggers
1.0m-60m W Cable
Antifouling Protective Guard
Replacement DO Sensor Cap
0% DO Sodium Sulfite Solution

MX800 Series User Guide (English)

Standard 6-Meter Malaise Trap Model 3012 for Insect Sampling

Double-head fly trap with dry and wet collection options

The Standard 6-Meter Malaise Trap Model 3012 was developed by Drs. Gressitt and Gressitt (1962) and distributed worldwide for over 20 years. Its body is made from UV-resistant polyester, and double or triple-reinforced seams ensure durability. The double heads allow for dry or wet collection depending on the need.

Highlighted Features

Interchangeable double collection head for dry or wet capture.

UV-resistant polyester fabric for long-term outdoor use.

Double or triple-reinforced seams for maximum durability.

Intercepting deflector of 2.6 m × 4.5 m to channel insects.

Optional acrylic alcohol collection heads for specialized wet capture.

Proven technology since 1962, used globally for over two decades.

Total Length	6 m
Material	UV-resistant polyester
Seams	Double or triple-reinforced
Deflector	2.6 m × 4.5 m
Heads	Dry and wet double
Approximate Weight	3.5 kg
Origin	Design Gressitt & Gressitt, 1962

1x Standard 6-meter Malaise Trap Model 3012.
1x Heavy-duty fixation cord.
2x Dry/wet collection heads (P/N 5.10).
1x Instruction manual.

Monopod or pole support to elevate the trap.
Stakes to secure the deflector to the ground.
Basic tools (scissors, pliers) for assembly.

Acrylic alcohol collection heads (P/N 5.20).
Stabilizing tripod for uneven terrain.
Foam-padded transport bag.
Fabric and seam repair kit.

Model 3012 Manual (PDF)

Idioma

Onset

Idioma

Onset

Onset HOBO U26-001 Dissolved Oxygen Data Logger

Onset HOBO U24 Conductivity Data Loggers

Onset USB Station for Pendant Optic

Onset Data Logger for HOBO UX120 Four Channel Thermocouples

Onset Direct Read Cable

Onset Water Level Sensor Module for RX3000

HOBO Dissolved Oxygen Sensor

Dissolved Oxygen Level Sensor for Environmental Monitoring

A Dissolved Oxygen and Temperature Sensor for Wse With HOBO MX800 Series Water Loggers

Features

Onset HOBO Soil Moisture Sensors

Onset Smart Temperature / RH Sensors HOBO

Onset Thermocouples for HOBO® Data Logger

Onset Data Logger HOBO Temperature and Relative Humidity UX100

Onset HOBO® UX120 Four-Channel Analog Data Logger

Onset HOBO U12 Temperature, Relative Humidity and Light Data Loggers

Onset Remote Weather Station (Console) HOBO RX3000

Onset Weather Station HOBO U30 NRC

Onset Photosynthetic Light (PAR) Smart Sensor

Onset Solar Radiation (Silicon Pyranometer) Smart Sensor

Onset Smart Barometric Pressure Sensor

Onset Rain Gauge (2m cable) Smart Sensors

HOBO Weather Station Tripod Kits

HOBO U30 USB Weather Station Starter Kit

Standard 6-Meter Malaise Trap Model 3012 for Insect Sampling

Double-head fly trap with dry and wet collection options

Highlighted Features

HOBOware Pro Mac/Win Data Logger Software

Idioma