HOBO MicroRX Water Level Station

SKU: RX2100-WL

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

Operating Range

RX2101 and RX2103: -40° to 60°C
RX2102 and RX2104: -20° to 60°C

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 range;
±30 seconds per month in -40° to 60°C range

Battery Type/Power Source

RX2102 and 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
RX2101 and RX2103: 6 AA 1.5 V lithium batteries or AC power adapter (P-AC-1)

RX2102 and 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

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

RX2102: 3 months
RX2104: 2 months

RX2101 and RX2103 Battery Life:

Battery life with daily connections:

RX2101: 1 year with 1 minute logging
RX2103: 1 year with 2 minute logging
Battery life with hourly connections and 1 minute logging:

RX2101: 3 months
RX2103: 2 months
Note: Deployments in areas with weak cellular strength could reduce battery life.

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

Size

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)

CE compliance

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

HOBO MicroRX-WL Data Sheet

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HOBO MicroRX-WL Quick Start

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HOBO MicroRX-WL Manual

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