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OPP-SENS® Duct absolute

humidity temperature sensors
Type Item no. ADG Euro / pc.

OPP-SENS® Duct humidity temperature sensor HTa-xxx-I-... see see
(absolute humidity) following following
for measurement of absolute humidity and temperature page page
in ventilation ducts.
Display and control unit with autoadapt and capacitive
button (option). This enables the NFC function, allowing easy
sensor parameterization via a smartphone.
5-point calibration: linear interpolation of the output curve
over 5 user-defined points. SENSORS
10 offset points: linear shift of characteristic curve the output
signal via 10-level rotary switch.
Captive lid with 8-way positioning.

10 measurement ranges can be set using the rotary switch:
0 – 15 g / m³ 0 – 20 g / m³ 0 – 35 g / m³ 0 – 50 g / m³*
0 – 100 g / m³ 0 – 130 g / m³ 0 – 150 g / m³ 0 – 200 g / m³
0 – 300 g / m³ 0 – 500 g / m³ *factory settings
Measuring range
temperature: Factory settings -50 to 50 °C,
with adjustable optional display
between -50 and 100 °C
Supply voltage:
2-wire 24 V DC
3-wire / Modbus / BACnet 24 V AC / DC
Output:
2-wire 4 – 20 mA
3-wire 0 – 10 V or 4 – 20 mA
switchable or bus
Margins of error:
Humidity ± 3 % RH at 25 °C for 20 – 80 % RH
Temperature ± 0.5 °C for 0 – 65 °C
Permiss.
ambient conditions: -20 – 70 °C, 0 – 95 % RH
(non-condensing)
Permiss. media temp.: -40 – 100 °C
Nominal diameter: Stainless steel sleeve ø 10 mm
Mounting: air duct mounting flange F-10
(included)
Housing: IP 65 including seal,
Plastic gray / yellow
Terminals: Spring terminals 0.2 – 1.5 mm2
Cable gland: M16

To our online catalog: www.oprg.de/en/support/download-center Catalog 2025 | Sensors | 47