Campbell Sci – HygroVue5

The HygroVUE™5 Temperature and Relative Humidity Sensor is designed for general meteorological and environmental monitoring applications. It utilizes the SDI-12 communications protocol to communicate with any SDI-12 recorder, simplifying installation and programming. The sensing element is easily changed in the field, reducing downtime and calibration costs. It is the entry-level sensor in the HygroVUE™ line of relative humidity and temperature sensors.




Sensor Element SHT35 derivative (specially coated for reliability)
Calibration Traceability NIST and NPL standards
Supply Voltage 7 to 28 Vdc
Warm-up Time Sensor is normally powered all the time. If power is switched off, allow 1.8 s for sensor to power up.
Main Housing Material White PET-P
Housing Classification IP67 (electronics housing)
Sensor Protection Outer glass-filled polypropylene cap fitted with a stainless-steel mesh dust filter with nominal pore size of < 30 µm. The sensor element is fitted with a PTFE protective film with a filtration efficiency of > 99.99% for particles of 200 nm or larger size.
EMC Compliance Tested and conforms to IEC61326:2013
Calibration The sensor element is individually calibrated during manufacture.
Diameter 12.5 mm (0.49 in) at sensor tip, maximum 16 mm (0.63 in) at the cable end
Length 115 mm (4.52 in) sensor only, without cable


Maximum Current Drain

Quiescent 50 μA typical
During Measurement 0.6 mA (takes 0.5 s) typical


Temperature Measurement

Operating Range -40 to +70°C
  • ±0.4°C (over the range -40 to +70°C)
  • ±0.3°C (over the range -20 to +60°C)


Relative Humidity Measurement

Measurement Range 0 to 100% RH
Accuracy (at 25°C)
  • ±1.8% (over the range 0 to 80% RH)
  • ±3% (over the range 80 to 100% RH)

Additional information


Campbell Sci