HOBOnet PAR Sensor

0 to 2500 μmol/m2/sec, wavelengths 400 to 700 nm

±5 μmol/m2/sec or ± 5%, whichever is greater in sunlight; Additional temperature induced error ±0.75 μmol/m2/sec/°C from 25°C (0.42 μmol/m2/sec/°F from 77°F)

Cosine corrected 0 to 80 degrees from vertical; Azimuth Error <2% error at 45 degrees from vertical, 360 degree rotation

2.5 μmol/m2/sec

<±2% per year

-25° to 60°C (-13° to 140°F) with rechargeable batteries

-40 to 70°C (-40 to 158°F) with lithium batteries

12.6 mW (+11 dBm) non-adjustable

Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high

Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high

IEEE 802.15.4

RXW-LIA-900: 904-924 MHz

RXW-LIA-868: 866.5 MHz

RXW-LIA-922: 916-924 MHz

RXW-LIA-921: 921 MHz

Up to 250 kbps, non-adjustable

<1%

Up to 50 wireless sensors or 336 data channels per one HOBO RX station

1 minute to 18 hours

2

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)

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

16 MB

Sensor: 4.1 cm height x 3.2 cm diameter (1.61 x 1.26 inches)

Cable length: 2 m (6.56 ft)

Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Sensor and cable: 109 g (3.85 oz)

Mote: 223 g (7.87 oz)

Sensor: Anodized aluminum housing with acrylic diffuser and O-ring seal

Mote: PCPBT, silicone rubber seal

Sensor: Weatherproof

Mote: IP67, NEMA 6