HOBOnet Rainfall (metric) Sensor
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Overview
Records rainfall in 0.2-millimeter increments. HOBOnet wireless sensors communicate data directly to the HOBO RX3000 or the HOBO MicroRX station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset's innovative cloud software platform.
Features
Sensor Features
- Resolution of 0.2 millimeters
- Bird spikes
- Debris screen that locks in place
- Designed to meet World Meteorological Organization (WMO) guidelines
Wireless Features
- 900 MHz wireless mesh self-healing technology
- 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
- Up to 50 wireless sensors or 336 data channels per HOBO RX station
- Simple button-push to join the HOBOnet wireless network
- Onboard memory to ensure no data loss
- Powered by rechargeable AA batteries and built-in solar panel
Specifications
Measurement Range
-
0 to 10.2 cm (0 to 4 in.) per hour, maximum 4,000 tips per logging interval
Accuracy
-
±4.0%, ±1 rainfall count between 0.2 and 50.0 mm (0.01 and 2.0 in.) per hour; ±5.0%, ±1 rainfall count between 50.0 and 100.0 mm (2.0 and 4.0 in.) per hour
Resolution
-
0.01 in.
Operating Temperature Range
-
-25° to 60°C (-13° to 140°F) with rechargeable batteries-40 to 70°C (-40 to 158°F) with lithium batteries
Radio Power
-
12.6 mW (+11 dBm) non-adjustable
Transmission Range
-
Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) highReliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high
Wireless Data Standard
-
IEEE 802.15.4
Radio Operating Frequencies
-
RXW-RGF-900: 904-924 MHzRXW-RGF-868: 866.5 MHzRXW-RGF-922: 916-924 MHzRXW-RGF-921: 921 MHz
Modulation Employed
-
OQPSKOffset Quadrature Phase Shift Keying
Data Rate
-
Up to 250 kbps, non-adjustable
Duty Cycle
-
<1%
Maximum Number of Motes
-
Up to 50 wireless sensors or 336 data channels per one HOBO RX station
Logging Rate
-
1 minute to 18 hours
Number of Data Channels
-
2
Battery Type/ Power Source
-
Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)
Battery Life
-
With NiMH batteries: Typical 3-5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life With lithium batteries: 1 year, typical use
Memory
-
16 MB
Dimensions
-
Sensor: 16.5 cm opening diameter (6.5 in.) x 24 cm (9.5 in.) high; 214 cm2 (33.2 in.2) collection areaCable length: 2 m (6.6 ft)Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight
-
Sensor and cable: 1.2 kg (2.7 lbs) Mote: 223 g (7.87 oz)
Materials
-
Sensor: UV-stabilized ABS plastic housing; tipping spoon mechanism with magnetic reed switch pivots on metal shaftMote: PCPBT, silicone rubber seal
Environmental Rating
-
Sensor: WeatherproofMote: IP67, NEMA 6