Sato SK-RHC-I Temperature & Humidity Transmitter, 4–20 mA
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The Sato SK-RHC-I temperature and humidity transmitter combines a local display with 4–20 mA outputs for connection to compatible monitoring and control equipment. Three interchangeable probe designs support different sensor positions.
- Dual measurement: temperature and relative humidity.
- Probe choice: plug-in, remote cable or slim remote sensor.
- Alarm relay: selectable upper or lower threshold for each parameter.
Probe sold separately. An optional AC adapter is available.
Read temperature and humidity locally while sending measurements to your monitoring system with the Sato SK-RHC-I. This transmitter provides separate 4–20 mA temperature and relative humidity outputs, allowing connection to compatible recorders, indicators and control equipment.
The interchangeable SK-RHCS probes let you choose where the sensor sits relative to the display. This makes probe placement a practical part of the installation, whether the measurement point is beside the transmitter or several metres away.
Local indication and analogue output
- Temperature and humidity display: check conditions directly at the instrument.
- 4–20 mA signals: transmit both parameters to compatible analogue inputs.
- Selectable update interval: choose a 1-second or 10-second refresh time.
- Relay alarm output: set one threshold for each parameter, selecting either an upper or lower limit.
- Interchangeable probes: select the sensing arrangement independently of the main unit.
Select the probe for your installation
The main unit does not include a probe. Choose one of the following SK-RHCS models when ordering. The selected probe determines the usable measurement range and sensing accuracy.
SK-RHCS-1: plug-in probe
The plug-in arrangement keeps the sensor directly attached to the transmitter for a compact installation.
- Catalogue number: 8921-00
- Temperature range: -10 to 60°C
- Humidity range: 20 to 95% RH at 23°C
SK-RHCS-2: remote probe with 5 m cable
The cable-connected design separates the sensing point from the display, allowing the transmitter to remain in an accessible position.
- Catalogue number: 8922-00
- Temperature range: -10 to 60°C
- Humidity range: 20 to 95% RH at 23°C
- Sensor cable length: 5 m
SK-RHCS-3: slim remote probe
The small sensing section provides an alternative where sensor space is limited. Check the installation dimensions and required humidity range before selecting this model.
- Catalogue number: 8922-10
- Temperature range: -10 to 60°C
- Humidity range: 25 to 90% RH at 23°C
- Sensing section: 6 mm diameter × 35 mm long
- Sensor cable length: 1.5 m
Transmitter specifications
| Model | SK-RHC-I |
|---|---|
| Catalogue number | 8920-03 |
| Temperature output scaling | 4–20 mA corresponds to -15 to 65°C |
| Humidity output scaling | 4–20 mA corresponds to 0 to 100% RH |
| Measurement range and accuracy | Depend on the connected probe |
| Refresh interval | 1 or 10 seconds, selectable |
| Alarm output | Relay contact; upper or lower threshold selectable for each parameter |
| Main unit dimensions | 118 (W) × 100 (H) × 42 (D) mm |
| Main unit weight | Approximately 220 g |
The output scaling is wider than the specified measuring range of the probes. Configure the receiving instrument to match the transmitter's signal scaling, while keeping the application within the selected probe's operating limits.
Specify the complete measurement setup
For a new installation, confirm the measurement location, probe cable length, receiving instrument and power supply. If replacing an existing transmitter, include its model and wiring details so the required configuration can be checked.
Contact us for pricing and availability. Specify the SK-RHC-I main unit, preferred probe, quantity and whether an AC adapter is required.
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The Sato SK-RHC-I temperature and humidity transmitter combines a local display with 4–20 mA outputs for connection to compatible monitoring and control equipment. Three interchangeable probe designs support different sensor positions.
- Dual measurement: temperature and relative humidity.
- Probe choice: plug-in, remote cable or slim remote sensor.
- Alarm relay: selectable upper or lower threshold for each parameter.
Probe sold separately. An optional AC adapter is available.
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