Part Number - RX2100-WL

MicroRX Water Level Station

Requires water level sensor

From $990.00 USD
An award-winning cellular, remote water level monitoring solution for stormwater, floodwater, irrigation, hydrologic, and environmental applications.

Important Information

Product needs level sensor.

Requires a HOBOlink data plan, which must be renewed annually. Learn more about HOBOlink. Not compatible with HOBOnet wireless sensors.

Compatible with

HOBOlink

Overview

An award-winning cellular, remote 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.

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.

This compact and durable station, together with the non-vented water level sensor, provides reliable monitoring, even when deployed in harsh conditions. The optional integrated solar panel or battery power, with a wide range of plug-and-play smart sensors, supports flexible environmental monitoring.

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 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
Country of Origin
United States

Build a system

  • Step 1
    Current
    Region
  • Step 2
    Station
  • Step 3
    Data Plans
  • Step 4
    Water Level Sensors
  • Step 5
    Environmental Sensors
  • Step 6
    Accessories
  • Step 7
    Summary

Step 1 Choose your region

Your region determines your device frequency

* Not all configurations will depend on a region/frequency selection, only installations that include HOBOnet wireless sensors.

US$ 0

Specifications

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

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ce

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

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FCC Logo

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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-SS-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-SS-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-SS-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-SS-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) <0.01 kPa (0.0015 psi) per year

Temperature (Water Level Sensors MX2001-0x-SS-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.

Compatible items

Graphing & Analysis

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BHW-PRO-CD
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BHW-PRO-USB
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4-20 mA

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AC Voltage

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AC Voltage, Amp Hour, Amps, Kilowatt Hours, Kilowatts, Power Factor, Volt-Amp Reactive, Volt-Amp Reactive hour, Volt-Amps, Volts, Watt Hours and Watts

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T-MAG-0400-75
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T-MAG-SCT-600
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Barometric Pressure

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DC Voltage

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S-ADAPT-6
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S-EXT-M002
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S-EXT-M005
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S-EXT-M010
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S-EXT-M025
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Kilowatt Hours (kWh)

T-WNB-3D-480
$305.00 USD
A-WNB-LEADSET
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T-ACT-0750-020
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T-ACT-0750-050
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T-MAG-0400-05
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T-MAG-0400-20
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T-MAG-0400-50
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T-MAG-0400-75
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T-MAG-SCT-100
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T-MAG-SCT-200
$62.00 USD
T-MAG-SCT-600
$75.00 USD

Leaf Wetness

S-LWA-M003
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Light Intensity

S-LIA-M003
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S-LIB-M003
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M-LBB
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M-LLA
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M-NDVI
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Pulse Input

Rainfall

S-RGA-M002
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S-RGB-M002
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S-RGE-M002
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S-RGF-M002
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Relative Humidity

Runtime

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Soil Moisture

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S-SMD-M005
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Temperature

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S-TMB-M006
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S-TMB-M017
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Water Flow

Wind

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S-WCB-M003
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S-WCC-M003
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S-WCE-M003
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M-CAB
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AC Power

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Batteries

Cable Adapters - Splitter

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S-ADAPT-6
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Cable Management

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Carrying Case

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Communication Cables

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Compliance Certificates

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$25.00 USD

Extension Cables

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S-EXT-M002
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S-EXT-M005
$30.00 USD
S-EXT-M010
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S-EXT-M025
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Solar Power

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SOLAR-5W
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Tripod Parts, Kits and Masts

M-TPA-KIT
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M-TPB-KIT
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U-BOLT-KIT2
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M-MPA
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M-MPB
$40.00 USD
M-TPA
$180.00 USD
M-TPB
$70.00 USD
U-BOLT-KIT2
$8.00 USD
M-GKA
$65.00 USD
M-GWA
$70.00 USD
M-SKA
$40.00 USD
M-SKB
$27.00 USD

Well Caps

WELL-CAP-02
$63.00 USD

What's in the box

  • 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)

Documents

HOBO® MicroRX Station (RX210x) Manual

View View

HOBO® MicroRX Station (RX210x) Quick Start

View View

HOBOlink® Web Services V3 Developer’s Guide

View View

FAQs

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

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.

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

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

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.

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.

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.

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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