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  • RX2100-WL
  • RX2100-WL
  • RX2100-WL
  • RX2100-WL
  • RX2100-WL
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HOBO MicroRX Water Level Station

Part # RX2100-WL
Lead Time: 3 Weeks
 

The MicroRX Water Level Station uses HOBOlink, Onset’s cloud-based software to access data with a web browser or mobile device. LEARN MORE.

Learn More

Overview

The HOBO MicroRX Water Level Station is a cellular, web-enabled water level monitoring solution for stormwater, floodwater, irrigation, hydrologic, and environmental applications. Pre-programmed water flow formulas for select weirs, flumes, and a stage discharge table result in an easy and intuitive configuration.

New water flow and accumulated rainfall calculations, which are performed directly on the station at time of measurement, trigger immediate notifications of critical water level conditions.

The compact and durable station, together with the non-vented water level sensor, enables harsh condition deployments and reliable monitoring. The optional integrated solar panel or battery power, with a wide range of plug-and-play smart sensors, supports flexible environmental monitoring.

Highlighted Features

  • Station-side alarms for water flow and accumulated rainfall triggered at time of measurement
  • Non-vented ceramic water level sensor with a choice of four ranges
  • Interchangeable, Kevlar-reinforced water level sensor cables
  • Integrated barometric pressure sensor
  • Compact IP66/NEMA 4X enclosure
  • Built-in LCD confirms proper setup and operation
  • Two power options:
    • Integrated 1.7 W solar panel with rechargeable battery pack
      • 5 W and 15 W external solar panels can be added (RX2104 only)
    • User-replaceable AA lithium batteries
  • Inputs for five plug-and-play smart sensors
  • Up to 10-minute connections rates via 4G cellular data plans
  • Cloud-based monitoring and data access through HOBOlink
  • Available with stainless steel or titanium sensor ends
  • 3-point NIST-traceable calibration certificate included for the water pressure sensor

In what environment does this data logger operate?

This data logger operates in an underwater environment.

What measurements does this data logger support?

The RX2100-WL data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Evapotranspiration, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall, Relative Humidity, Soil Moisture, Temperature, Water Level and Wind

The HOBO MicroRX Water Level Station is a cellular, web-enabled water level monitoring solution for stormwater, floodwater, irrigation, hydrologic, and environmental applications. Pre-programmed water flow formulas for select weirs, flumes, and a stage discharge table result in an easy and intuitive configuration.

New water flow and accumulated rainfall calculations, which are performed directly on the station at time of measurement, trigger immediate notifications of critical water level conditions.

The compact and durable station, together with the non-vented water level sensor, enables harsh condition deployments and reliable monitoring. The optional integrated solar panel or battery power, with a wide range of plug-and-play smart sensors, supports flexible environmental monitoring.

Highlighted Features

  • Station-side alarms for water flow and accumulated rainfall triggered at time of measurement
  • Non-vented ceramic water level sensor with a choice of four ranges
  • Interchangeable, Kevlar-reinforced water level sensor cables
  • Integrated barometric pressure sensor
  • Compact IP66/NEMA 4X enclosure
  • Built-in LCD confirms proper setup and operation
  • Two power options:
    • Integrated 1.7 W solar panel with rechargeable battery pack
      • 5 W and 15 W external solar panels can be added (RX2104 only)
    • User-replaceable AA lithium batteries
  • Inputs for five plug-and-play smart sensors
  • Up to 10-minute connections rates via 4G cellular data plans
  • Cloud-based monitoring and data access through HOBOlink
  • Available with stainless steel or titanium sensor ends
  • 3-point NIST-traceable calibration certificate included for the water pressure sensor

In what environment does this data logger operate?

This data logger operates in an underwater environment.

What measurements does this data logger support?

The RX2100-WL data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Evapotranspiration, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall, Relative Humidity, Soil Moisture, Temperature, Water Level and Wind

Learn More

To see the full specifications for this product, please see our product manual found under the documentation tab if available

Operating Range

RX2103: -40° to 60°C (-40° to 140°F)
RX2104: -20° to 60°C (-4° to 140°F)

Smart Sensor Connectors

5

Smart Sensor Network Cable Length

100 m (328 ft) maximum

Smart Sensor Data Channels

Maximum of 15 (some smart sensors use more than one data channel; see sensor manual for details)

Logging Rate

1 minute to 18 hours

Time Accuracy

±8 seconds per month in 0° to 40°C (32°F to 104°F) range;
±30 seconds per month in -40° to 60°C (-40° to 140°F) range

Battery Type/Power Source

RX2103: 6 AA 1.5 V lithium batteries or AC power adapter (P-AC-1)
RX2104: Integrated 1.7 watt solar panel and NiMH rechargeable battery pack; optional AC power adapter (P-AC-1) or external solar panel (SOLAR-xW) can be used in place of integrated solar panel

Battery Life

RX2103 Battery Life:

Battery life with daily connections:

  • RX2103: 1 year with 2 minute logging

Battery life with hourly connections and 1 minute logging:

  • RX2103: 2 months

Note: Deployments in areas with weak cellular strength could reduce battery life.

RX2104 Battery Life:

Typical 3–5 years when operated in the temperature range -20° to 40°C (-4° to 104°F); operation outside this range will reduce the battery service life.

Maximum connection rates with built-in solar panel, in full sun:

  • 10 minute connections year round for latitudes less than ±40°
  • 10 minute connections through three seasons in other regions, reduced to 30 minute connections in winter

Maximum connection rates with external 5W or 15W solar panels:

  • 10 minute connections year round, in full sun
  • Connection rate with external solar panels may be less if deployed in partial sun

Battery life without solar recharging, with hourly connections and
1 minute logging:

  • RX2104: 2 months

Memory

16 MB, 1 million measurements, continuous logging

Alarm Notification Latency

Logging interval plus 2–4 minutes, typical

Enclosure Access

Hinged door secured by two latches with eyelets for use with user-supplied padlocks

LCD

LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range

Materials

Outer enclosure: Polycarbonate/PBT blend with brass inserts; Interior: Polycarbonate/PBT; Gasket: Silicone foam; Cable channel: Santoprene™ TPE; U-Bolts (not included): Steel with zinc dichromate finish

Dimensions

19.95 x 13.68 x 7.49 cm (7.85 x 5.39 x 2.95 in.)

Weight

678 g (23.9 oz)

Mounting

Optional U-bolts are compatible with masts up to 4.14 cm (1.63 in.) mast diameter; can also be mounted with zip ties or mounted to a flat surface with screws

Environmental Rating

Weatherproof enclosure, NEMA 4X and IP66 (requires proper installation of cable channel system)

Wireless Radio

GSM/GPRS/EDGE: Quad band 850/900/1800/1900 MHz
UMTS/HSPA+: Seven band 800/850/900/1800/1900/2100 MHz
LTE: Twelve Band 700/800/850/900/1800/1900/2100/2600 MHz

Antenna

4G LTE

ce

The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)

FCC Logo Australia/New Zealand General Compliance mark 

FCC ID QIPPLS62-W, IC ID:7830A-PLS62W

 

Water Level Sensor:

Pressure (Absolute) And Water Level Measurements MX2001-01-S and MX2001-01-Ti-S:

Operation Range

0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude

Factory Calibrated Range

69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)

Burst Pressure

310 kPa (45 psia) or 18 m (60 ft) depth

Water Level Accuracy*

Typical error: ±0.05% FS, 0.5 cm (0.015 ft) water
Maximum error: ±0.1% FS, 1.0 cm (0.03 ft) water

Raw Pressure Accuracy**

±0.3% FS, 0.62 kPa (0.09 psi) maximum error

Resolution

<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water

Pressure Response Time (90%)***

<1 second at a stable temperature

 

Pressure (Absolute) And Water Level Measurements MX2001-02-S:

Operation Range

0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude

Factory Calibrated Range

69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)

Burst Pressure

500 kPa (72.5 psia) or 40.8 m (134 ft) depth

Water Level Accuracy*

Typical error: ±0.05% FS, 1.5 cm (0.05 ft) water
Maximum error: ±0.1% FS, 3.0 cm (0.01 ft) water

Raw Pressure Accuracy**

±0.3% FS, 1.20 kPa (0.17 psi) maximum error

Resolution

<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water

Pressure Response Time (90%)***

<1 second at a stable temperature

 

Pressure (Absolute) And Water Level Measurements MX2001-03-S:

Operation Range

0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to 251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft) of water at 3,000 m (10,000 ft) of altitude

Factory Calibrated Range

69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F)

Burst Pressure

1,200 kPa (174 psia) or 112 m (368 ft) depth

Water Level Accuracy*

Typical error: ±0.05% FS, 3.8 cm (0.125 ft) water
Maximum error: ±0.1% FS, 7.6 cm (0.25 ft) water

Raw Pressure Accuracy**

±0.3% FS, 2.55 kPa (0.37 psi) maximum error

Resolution

<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water

Pressure Response Time (90%)***

<1 second at a stable temperature

 

Pressure (Absolute) And Water Level Measurements MX2001-04-S and MX2001-04-Ti-S:

Operation Range

0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude

Factory Calibrated Range

69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)

Burst Pressure

310 kPa (45 psia) or 18 m (60 ft) depth

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

Raw Pressure Accuracy**

±0.3% FS, 0.43 kPa (0.63 psi) maximum error

Resolution

<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water

Pressure Response Time (90%)***

<1 second at a stable temperature

 

Barometric Pressure (RX2103 and RX2104 station):

Operation Range

66 to 107 kPa (9.57 to 15.52 psia)

Temperature Calibrated Range

-20 to 50°C (-4 to 122°C)

Accuracy

±0.2 kPa (±0.029 psi) over full temperature range at fixed pressure; maximum error ±0.5% FS

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

Resolution

<0.01 kPa (0.0015 psi)

Response Time

<1 second at a stable temperature

Stability (Drift) 0.1°C (0.18°F) per year

 

Temperature (Water Level Sensors MX2001-0x-S and MX2001-0x-Ti-S):

Operation Range

-20° to 50°C (-4° to 122°F)

Accuracy

±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F)

Resolution

0.1°C at 25°C (0.18°F at 77°F)

Response Time (90%) 

5 minutes in water (typical)

Stability (Drift) 0.1°C (0.18°F) per year

* Water Level Accuracy: With accurate reference water level measurement, known water density, and a stable temperature environment. System Water Level Accuracy equals the sum of the Barometric Water Level Accuracy plus the selected sensor Water Level Accuracy.

** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.

*** Changes in Temperature: Allow 20 minutes in water to achieve full temperature compensation of the pressure sensor. There can be up to 0.5% of additional error due to rapid temperature changes.

Measurement accuracy also depends on temperature response time.

 

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1. Choose your station:


Note: Larger external solar panels can be used with this model. Order solar panels from Accessories tab.
$700

Note: When AC power is available, it can be used as the primary power, with battery as back-up. Order the P-AC-1 AC Adapter from Accessories tab.
$640

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x

x

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2. Data Plans

A. Choose your data plan:


x

x

x

x

3. Water Level Sensors

The following sensors are compatible with the water level stations selected from the Station tab. Please select one sensor and one cable.

Select One Sensor:


$350

$350

$350

$350

$400

$400

Select One Cable:

The 1, 5, 10, 15, 30, and 60 meter cables are typically in stock, while other cables are custom lengths with a 1-2 week lead time.

Mounting:


$59

x

x

x

x

4. Environmental Sensors

Barometric measurement is built into unit so additional sensor not needed.

Station includes 5 smart sensor inputs and supports up to 15 channels.

4-20 mA
12-bit 4-20mA Input Adapter Sensor
Items used with S-CIA-CM14
Smart Sensor Consolidator Box Adapter
Smart Sensor Extension Cable - 2m length Cable
Smart Sensor Extension Cable - 5m length Cable
Smart Sensor Extension Cable - 10m length Cable
Smart Sensor Extension Cable - 25m length Cable
Barometric Pressure
Smart Barometric Pressure Sensor
DC Voltage (0-2.5v, 5v, 10v)
12-bit Voltage Input Adapter Sensor
Items used with S-VIA-CM14
Smart Sensor Consolidator Box Adapter
Smart Sensor Extension Cable - 2m length Cable
Smart Sensor Extension Cable - 5m length Cable
Smart Sensor Extension Cable - 10m length Cable
Smart Sensor Extension Cable - 25m length Cable
Leaf Wetness
Leaf Wetness Smart Sensor
Light Intensity
Photosynthetic Light (PAR) Smart Sensor
Solar Radiation (Silicon Pyranometer) Smart Sensor
Items used with above items
Light Sensor Bracket
Light Sensor Level
NDVI Light Sensor Bracket
Pulse Input
Electronic Switch Pulse Input Adapter - 1 meter Sensor
Electronic Switch Pulse Input Adapter - 6 meters Sensor
Contact Closure Pulse Input Adapter - 1 meter Sensor
Contact Closure Pulse Input Adapter - 6 meters Sensor
Rainfall
0.01" Rain Gauge (2m cable) Smart Sensor
0.2 mm Rainfall (2m cable) Smart Sensor
Davis® 0.01" Rain Gauge Smart Sensor
Davis® 0.2 mm Rain Gauge Smart Sensor
Relative Humidity
12-bit Temperature/Relative Humidity (2m cable) Smart Sensor
12-bit Temperature/Relative Humidity (8m cable) Smart Sensor
Items used with above items
Solar Radiation Shield
Soil Moisture
EC5 Soil Moisture Smart Sensor
10HS Soil Moisture Smart Sensor
Temperature
12-Bit Temperature (2m cable) Smart Sensor
12-Bit Temperature (6m cable) Smart Sensor
12-Bit Temperature (17 m cable) Smart Sensor
Items used with above items
Solar Radiation Shield
Wind
Davis® Wind Speed and Direction Smart Sensor
R.M. Young Wind Monitor-AQ (model 05305) Adapter
R.M. Young Marine Wind Monitor (model 05106) Adapter
R.M. Young Wind Monitor for Wind/Alpine (model 05103) Adapter
Items used with above items
Ground wire for H21-USB Cable
Ultrasonic Wind Speed and Direction Smart Sensor
Wind Direction Smart Sensor
Wind Speed Smart Sensor
Wind Speed and Direction Set Smart Sensor
Items used with above items
Ground wire for H21-USB Cable
Full Cross Arm
Half Cross Arm

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5. Accessories

AC Power
AC Power Adapter
Batteries
Replacement Lithium AA Batteries – 6 pack
Replacement Rechargeable Battery Pack for RX2102 and RX2104
Cable Adapters - Splitters
1-to-2 sensor communication adapter Adapter
Smart Sensor Consolidator Box Adapter
Cable Management
Cable Caddy
Carrying Case
Pelican Case
Communication Cables
USB Cable
Compliance Certificates
Compliance Certification
Extension Cables
Weatherproof Extension Housing
Smart Sensor Extension Cable - 2m length Cable
Smart Sensor Extension Cable - 5m length Cable
Smart Sensor Extension Cable - 10m length Cable
Smart Sensor Extension Cable - 25m length Cable
Solar Power
15 Watt Solar Panel Power
5 Watt Solar Panel Power
Tripod Parts, Kits and Masts
HOBO Weather Station 3-Meter Tripod Kit Kit
HOBO Weather Station 2-Meter Tripod Kit Kit
Items used with above items
1-5/8” U-bolts (Qty 2) None
3m mast
1.5 meter mast
HWS 3m Tripod Tower with mast
HWS 2m Tripod Tower with mast
Items used with above items
1-5/8” U-bolts (Qty 2) None
Grounding Kit
HWS Guy Wire Kit
Mast Level
1/2" Stake Kit
1/4" Stake Kit

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x

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Please review your order:

Step 1. Station (Change)
0

Estimated Order Total: $0 USD

Qty:
RX2100 configuration has been added to the cart. Click here to checkout
    • HOBO RX2100 MicroRX Station
    • Grease packet
    • Cable ties
    • Screws and washers
    • Six AA lithium batteries (RX2103 battery-powered station)
    • Battery pack (RX2104 solar-powered station)

The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below. Our user forum can also be a valuable resource for questions, use cases and general feedback. Share with us today, here!

FAQ Tab Header 

If you have a question that’s not listed below, contact our Sales Application Specialists, who will be happy to help you!

FAQ Tab 
Q.

Can I calculate water flow using the HOBO MicroRX Water Level Station?

A.

Yes, the station is configured with pre-installed calculations for V-notch weirs, general flumes (e.g. Parshall, Ramp, and Cutthroat), and a stage-discharge table.

Q.

What alarms are available?

A.

The MicroRX Water Level Station has alarms that trigger for accumulated rainfall and water level/flow at time of measurement.

Q.

Can I have more than one accumulated rainfall alarm programmed at the same time?

A.

The RX2100 can only have one accumulated rainfall alarm set up at a time.

Q.

Can my data be exported to any hydrology software?

A.

Yes, data can already be used with Network for Environment and Weather Applications (NEWA), DataWise, and the Florida Automated Weather Network (FAWN). Integration with Aquarius is coming soon.

Q.

How should I mount the water level sensor?

A.

There are multiple ways to mount the water level sensor.

  1. Suspend the sensor in a 2” well with a dedicated Onset well cap
  2. Suspend the sensor in larger wells with a reducer to Onset’s well cap, or your own well cap.
  3. If mounting in a storm sewer, use a PVC pipe with holes and one end resting on the bottom of the catchment and the top secured to the side of the catchment access.
Q.

Do I need a well cap?

A.

A well cap will protect your water level sensor from rainfall and debris. It is uniquely designed to keep the water level sensor cable securely in place, which is especially helpful when using longer cables.

Q.

Why would I need an additional solar panel if I choose the integrated solar MicroRX Water Level Station?

A.

You may want an additional solar panel to boost power to ensure connectivity at the maximum 10-minute rate. It may also be a good option if your station is not deployed in full sun.

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PLEASE NOTE: Custom cables are ineligible for return.

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