| Agency Approvals | : | UL 916, European conformance CE:EN61000-6-2EN61000-6-3EN61000 Series - industrial immunityEN 61326-1FCC Part 15 Class AREACH, RoHS, RoHS 2 (China), ICES-003 (Canada),UKCA (UK) | 
| Collection | : | Upgraded HO2 | 
| Enclosure Material | : | Polycarbonate; flammability rating UL 94 V0 | 
| Humidity Calibration Certificate | : | Replaceable RH element available in 1% & 2% with NISTcalibration certificate | 
| Humidity Measurement Accuracy | : | ±2% from 10 to 80% RH @ 25 °C (77 °F) | 
| Humidity Measurement Linearity | : | Included in accuracy specification | 
| Humidity Output Range | : | 0 to 100% RH | 
| Humidity Sensor Type | : | Solid state capacitive, replaceable | 
| IP Protection | : | IP65 | 
| Input Specifications | : | 3-wire volt mode: 20 to 30 Vdc, 24 Vac, 50 to 60 Hz;loop powered 20 to 30 Vdc | 
| Measurement Type | : | Relative Humidity / Temperature | 
| Operating Humidity | : | 0 to 95% RH non-condensing | 
| Operating Temperature | : | -40 to 55 °C (-40 to 131 °F) | 
| Output Specifications | : | Selectable 4 To 20 MA, 0 To 5 V, 0 To 10 V | 
| Outputs | : | Analog Output | 
| Temperature Measurement Accuracy | : | ±0.2 °C (±0.4 °F) typical | 
| Temperature Measurement Range | : | -40 to 55 °C (-40 to 131 °F) | 
| Temperature Measurement Resolution | : | 0.1 °C (0.1 °F) | 
| Temperature Sensor Type | : | 10K Ohm Curve G Thermistor | 
| Terminal Blocks | : | Screwless terminal block with spring actuator, 16-24 AWG | 
The HO2XA2R Weatherproof Outdoor Humidity Sensor is an all-in-one device combining humidity and temperature sensing. The device ensures a building’s optimum temperature and humidity levels, resulting in greater energy efficiency.
This next generation of Outdoor Humidity Sensor Series provide an ideal solution for measuring relative humidity in a wide range of conditions. The HO2XA2R has a humidity measurement accuracy of ±2% from 10 to 80% RH @ 25 °C (77 °F). All models are equipped with a solid state capacitive sensor that is easy to replace in the field.
Each device is an active sensor that converts a humidity or temperature measurement into an analog output (4-20 mA) or a voltage level (0 to 5 Vdc or 0 to 10 Vdc).