Temperature/RH Smart Sensor (S-THC-M00x) Manual
25929-A
The temperature/RH smart sensor is designed to work with smart sensor-compatible HOBO®
data loggers and stations. All sensor parameters are stored inside the smart sensor, which
automatically communicates configuration information to the logger without any
programming, calibration or extensive user setup.
Specifications
Temperature
RH
Measurement Range
-40°C to 75°C (-40°F to 167°F)
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
±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)
±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
0.02°C (0.036°F)
0.01% RH
Bits Per Sample
16 16
Drift
<0.01°C (0.018°F) per year
<1% per year typical
Response Time (typical, to 90%
of change)
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
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
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
S-THC-M002: 110 g (3.88 oz)
S-THC-M008: 180 g (6.35 oz)
Number of Data Channels**
2
Measurement Averaging Option
No
Cable Lengths Available
2.5 m (8.2 ft); 8 m (26.2 ft)
Length of Smart Sensor
Network Cable*
0.5 m (1.6 ft); 6 m (19.6 ft)
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
The UKCA marking identifies this product as complying with all
relevant directives in the UK Declaration of Conformity.
* Maximum 100% RH readings are only logged with RX3000 stations. The maximum readings for this sensor with U30 and
H21 stations is 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).
Temperature/RH
Smart Sensor
Models: S-THC-M002
S-THC-M008
Accessories:
•
Solar radiation shield
(RS3-B)
