---
lang: "en"
title: "Humidity Transmitters for Building Automation"
canonical_url: "https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation"
brand: "MARCOM S.r.l."
---

## Available variants

---
title: "Humidity Transmitters for Building Automation — Variant: Relative humidity analog output"
sku: "RHT"
canonical_url: "https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation?config=2046"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

---
title: "Humidity Transmitters for Building Automation — Variant: Relative humidity analog output with display"
sku: "RHT-D"
canonical_url: "https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation?config=2047"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

---
title: "Humidity Transmitters for Building Automation — Variant: Relative humidity analog output with display, 1 relay output"
sku: "RHT-1R-D"
canonical_url: "https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation?config=2048"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

---
title: "Humidity Transmitters for Building Automation — Variant: Relative humidity MODBUS with display, 1 relay output"
sku: "RHT-MOD-1R-D"
canonical_url: "https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation?config=2049"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

---
title: "Humidity Transmitters for Building Automation — Variant: Relative humidity MODBUS with display"
sku: "RHT-MOD-D"
canonical_url: "https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation?config=2050"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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RHT: Humidity Transmitters for Building Automation

RHT relative humidity transmitters are designed for building automation systems in the HVAC/R industry. The RHT measures relative humidity (rH) and temperature (T). RHT devices are available with a large touchscreen display which makes device configuration quick and easy.

### RHT devices include:

- Field-configurable separate output for each measurement parameter (rH and T)
- Proportional output options including: voltage (0-10 V, 2-10 V) and current (4-20 mA)
- Offset function that allows field calibration for each measurement parameter (rH, T)

### RHT series device options offer:

- 2" x 3" touchscreen display
- Field-configurable relay for either parameter
- Modbus configuration

##  Technical Specifications

- Accuracy: Temperature: <0.5 °C
- Relative humidity: ±2...3 % rH at 0...50 °C and 10...90 % rH
- Total error band includes accuracy, hysteresis, and temperature effect over 5...50 °C and 10-90 % rH
- Measurement units: °C, % rH
- Measurement elements: Integrated temperature sensor, thermoset polymer capacitive sensing element for humidity
- Supply voltage: 24 VDC/VAC ±10
- Output signal 1: 0/2...10 V or 4...20 mA (linear to rH) (2-10 V output: display required)
- Output signal 2: 0/2...10 V or 4...20 mA (linear to Temp) (2-10 V output: display required)
- Optional relay output: SPDT potential-free 250 VAC, 6 A / 30 VDC, 6 A with adjustable switching point and hysteresis
- Operating temperature: 0...50 °C
- Protection standard: IP20

![](/storage/pages/images/HqDGtLxjN34CNTCIbCLCETbYtL4LCDnkTRsIMZo0.webp)

---

Source: https://shop.marcomweb.it/en/pressure/humidity-transmitters-for-building-automation

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.