HOBOnode sensors monitor temperature and soil moisture conditions and wirelessly transmit the data back to your computer.


Fast, easy deployment - sensor's compact size, integrated solar-rechargeable battery makes deployment a snap.
-40 to 212F measurement range
Software provides real-time graphs and alarms to cell phones or local PC; data can be exported for use in other programs.
1400 ft. line-of-sight transmission range, up to six miles with HOBOnode Repeaters
Research-grade reliability and accuracy
Complete system requires: Receiver, Sensor, HOBOnode Viewer software. A Repeater is required for greater distances.(all sold separately)
Includes bracket for convenient mounting on a pole or stake


HOBOnode network configuration topology
Environment: Outdoor
Measurement: Temperature

Measurement Range: -40° to 100°C (-40° to 212°F)
Accuracy - 0.22°C from 0 to 50°C (0.4°F from 32° to 122°F) - Note: For accurate temperatures in sunlight we recommend the use of our solar radiation shield. (RS3)
Resolution - 0.025° at 25°C (0.045°F at 77°F)
Response time - 3 minutes in air moving 1m/s; 30 seconds in water
Sample rate -1 reading per minute
Battery life - 1 yr typical w/o charging; 3 yrs typical w/ solar charging
Size -16.5cm x 5cm; 3.7m cable to sensor (6.5” x 2”; 12’ cable)
Memory - NA
Transmission range - HOBOnodes to receiver or repeater: 420m (1400’) with clear LOS; 300m (1000’) typical
Wireless Data Standard - IEEE 802.15.4, 2.4 GHz ISM band (license free worldwide)
Environmental rating - HOBOnodes: NEMA 6P, IP68; temperature sensor probe is rated for 1-year immersion in freshwater ≤ 50° C (122° F)
recommend 8’ x 1-1/4”, schedule 40 PVC pipe for mounting (purchase through local building supply store)
for windy locations we also recommend our Guy Wire Kit (M-GWK) and ½” Stake Kit (M-SKA)
note that the HOBOnodes should not be mounted on metal poles

Producing Area:USA