Features
Smart Sensor
Works with all loggers that accept Smart Sensor inputs
Automatically communicates configuration data to the logger
Specifications
Measurement Range
Temp
-40°C to 75°C
-40°F to 167°F
RH
0-100%* RH at -40° to 75°C (-40° to 167°F); exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
Accuracy
Temp
±0.25°C from -40° to 0°C (±0.45°F from -40° to 32°F); ±0.20°C from 0° to 70°C (±0.36°F from 32° to 158°F); ±0.25°C from 70° to 75°C (±0.45°F from 158° to 167°F)
RH
±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution
Temp
0.02°C
RH
0.01% RH
Bits Per Sample
Temp
16
RH
16
Drift
Temp
< 0.01°C (0.18°F) per year
RH
< 1% per year typical
Response Time (typical, to 90% of change)
Temp
Without solar radiation shield: 3 minutes, 45 seconds in air moving 1 m/s; With RS3-B solar radiation shield: 6 minutes, 30 seconds in air moving 1 m/s
RH
Without solar radiation shield: 15 seconds in air moving 1 m/s; With RS3-B solar radiation shield: 30 seconds in air moving 1 m/s
Sensor
Operating temperature range
-40°C to 75°C
-40°F to 167°F
Environmental rating
Weatherproof: 0 to 100% RH intermittent condensing environments. For best results, protect the Temp/RH sensor from sunlight and direct splashing by mounting it inside a protective enclosure, such as a solar radiation shield.
Housing
PVC cable jacket with ASA styrene polymer RH sensor cap; modified hydrophobic polyethersulfone membrane
Sensor dimensions
45.97 x 11.43 x 10.16 mm
1.81 x 0.45 x 0.40 inches
Weight
110 g
3.88 oz
Number of data channels**
2
Measurement averaging option
No
Cable lengths available
2.5 m
8.2 ft
Length of Smart Sensor network cable
0.5 m
1.6 ft
Notices
* Maximum 100 % RH readings are only logged with RX3000 stations.The maximum readings for this sensor with U30 and H21 stations are approximately 99.99 %.
** A single HOBO station can accommodate 15 data channels and up to 100 m(328 ft) of smart sensor cable(the digital communications portion of the sensor cables).
