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SK30-TTHC-CO2 - KNX Temperature, Humidity and CO2 Sensor with PT1000 Input, 55 mm (2.17 in) Frame
✗
UL Listed
This product has not been certified by an NRTL (UL, ETL, CSA or
equivalent). Installation in USA projects may require a Field Evaluation
by a recognized laboratory. Consult your local AHJ before specifying.
~
Low Voltage · SELV
This device operates on a Safety Extra Low Voltage circuit — such as
the KNX 29V bus or a DALI 16V bus (NEC Class 2). When powered by an
NRTL-listed power supply, many AHJs accept non-listed SELV devices.
Verify with your local AHJ before specifying.
Regular price
$373.44 USD
Regular price
-17%
$448.13 USD
Sale price
$373.44 USD
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The SK30-TTHC-CO2 is a KNX room sensor that measures temperature, humidity and CO2 and includes an integrated room temperature controller (RTR). It is a practical choice for demand-controlled ventilation in offices, meeting rooms and classrooms. Absolute humidity, dew point and enthalpy are calculated on board. An extra input for an external PT1000 probe adds a second temperature measurement from -50 to +400 °C (-58 to 752 °F).
Available in White and Ultra Dark Grey (anthracite). The insert fits 55 mm (2.17 in) standard switch frames and includes a carrier frame for a 68 mm (2.68 in) in-wall box. Two floating binary inputs/outputs can also drive LEDs or a beeper, and no auxiliary supply is needed.
Key Features
- Temperature -10 to +50 °C (14 to 122 °F), resolution 0.02 °C (0.04 °F), accuracy ±0.4 °C (±0.72 °F) (5 to 60 °C (41 to 140 °F)), else ±0.8 °C (±1.4 °F)
- Relative humidity 0 to 95 %, accuracy ±3 % (20 to 80 %); calculates absolute humidity, dew point and enthalpy
- CO2 400 to 5000 ppm, accuracy ±(50 ppm + 5 % of reading)
- External PT1000 input for a second temperature, -50 to +400 °C (-58 to 752 °F) (probe not included)
- 2 floating binary inputs/outputs, configurable as LED or beeper outputs
- 55 mm (2.17 in) frame-size insert with carrier frame for 68 mm (2.68 in) in-wall box, IP20
- Integrated bus coupler and RTR; bus powered, no auxiliary supply; ETS application HLK305
Technical Specifications
| Article no. | 30542361 (White), 30542362 (Ultra Dark Grey) |
|---|---|
| KNX bus voltage | KNX 21-32 VDC |
| Power consumption | approx. 240 mW at 24 VDC (bus powered) |
| Auxiliary supply | Not required (bus powered) |
| Measuring | Temperature -10..+50 °C (14 to 122 °F), res. 0.02 °C (0.04 °F), ±0.4 °C (±0.72 °F) (5..60 °C (41 to 140 °F)) else ±0.8 °C (±1.4 °F); humidity 0..95 % rH, res. 0.02 %, ±3 % rH (20..80 %) else ±5 %; CO2 400..5000 ppm, accuracy ±(50 ppm + 5 % of reading); calculates abs. humidity, dew point, enthalpy; 2nd temperature: external PT1000 input -50..+400 °C (-58 to 752 °F) (accuracy depends on probe; probe not included) |
| Inputs / outputs & connections | 2 binary inputs/outputs (floating; configurable as LED/beeper outputs); external PT1000 input |
| Protection rating | IP20 |
| Dimensions | 55 mm (2.17 in) standard frame size insert |
| Mounting | Flush mount, indoor; carrier frame for 68 mm (2.68 in) in-wall box included; fits 55 mm (2.17 in) standard switch frames |
| Operating temperature | -10 to +50 °C (14 to 122 °F) (storage -25 to +60 °C (-13 to 140 °F)); 0..95 % rH non-condensing |
Application note: The PT1000 probe for the second temperature input is not included and is ordered separately.
Downloads
(CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations)
Orders over $500 ship free within the USA (under 50 lbs). Orders under $500 carry a low cost shipping fee.
Most in-stock orders ship within 1–2 business days from Miami, FL. Delivery typically takes 3–5 business days depending on destination.
For freight or oversized orders, our team will contact you with a custom quote.
All KNXSupply products are covered by the manufacturer's warranty, ranging from 1 to 3 years depending on the brand. Warranty terms are fulfilled directly by the manufacturer.
If you experience any issue, contact us and we'll coordinate the claim process on your behalf.
Buy in bulk
| Variant | Quantity | Price | Total |
|---|---|---|---|
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White
30542361
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Ultra Dark Grey
30542362
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