CONOTEC CNT-CS24 Temperature / Humidity RS485 Sensor
Digital temperature and humidity sensor with RS485 interface according to CONOTEC’s sensor product list.
Manufacturer: CONOTEC
Measurement / function: Temperature and humidity
Primary Manufacturer Source
Official model details or catalog →
The latest configuration, power requirements, outputs and exact technical specifications must be checked against the current manufacturer datasheet.
CNT-CS24 — RS485 humidity and temperature channels
CONOTEC CNT-CS24 is a combined temperature/humidity sensor with an RS485 communication interface. The installed host needs the correct serial bus, address and register map, including whether the two measurements are reported as degrees Celsius and relative humidity or scaled integer values. A low-voltage communication pair is not an analog 4–20 mA output. Place the probe in representative ambient air, avoid condensation and confirm manufacturer calibration/protection requirements for the exact housing.
CNT-CS24 — current CONOTEC source-verified technical specification
CONOTEC’s exact model page, not the unrelated CNT-TM100 or FOX controller manual, identifies CNT-CS24 as a combined SHT30-based temperature/humidity measurement unit with RS485 Modbus RTU. It is powered from 5 V DC, not an industrial 24 V analogue transmitter by default.
| Maker model attribute | Exact CNT-CS24 listing | Application caveat |
|---|---|---|
| Temperature span / stated accuracy | −20.0…+60.0°C; ±1°C | Degree accuracy must not be mistaken for ±1% reading; validate heat exposure and placement. |
| Humidity span / stated accuracy | 0–100% RH; ±3% RH | Manufacturer allows ambient 0–95% RH, non-condensing; measurement span is not continuous protection against liquid water. |
| Core sensing element | SHT30 | Probe enclosure and installation determine installed-system thermal gradients and humidity lag. |
| Interface / configuration | RS485 Modbus RTU; °C/°F selection via serial configuration | Confirm exact bus address, baud, parity, register offset and scale against CNT-CS24 manual; those values are not fully enumerated in the HTML specification. |
| Supply / current | 5 V DC; 20 mA at 5 V stated power consumption | Provide suitable regulated power separately from RS485 A/B; do not assume 20 mA is a loop-output signal. |
| Enclosure dimensions | 40.6 W × 20 H × 62.0 D mm | Check probe exposure, cable entry and orientation for monitored zone. |
Building-automation implementation
RS485 electrical transceivers require bus termination and correct polarity/ground practices. Confirm manufacturer registers and integer scaling before displaying measurements in a BAS; avoid assuming address defaults from other CONOTEC controllers. The page does not establish IP or ATEX/IECEx for this exact model, so high-condensation HVAC or hazardous-area installation requires further proof.
Exact maker listing: CONOTEC CNT-CS24 specifications and manual entry.