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esthw50adm – temp rh wall tx current output with com / display
Carlo Gavazzi ESTHW50ADM is a wall-mounted temperature and relative humidity transmitter with 4–20 mA analogue outputs, RS485 Modbus RTU communication and an integrated LCD display for HVAC and building automation applications.
Why Choose the Carlo Gavazzi ESTHW50ADM Temperature and Humidity Transmitter?
The Carlo Gavazzi ESTHW50ADM is a wall-mounted temperature and relative humidity transmitter designed for HVAC, building automation and environmental monitoring applications. Part of the Carlo Gavazzi EST environmental sensor range, it combines temperature and humidity measurement, analogue current outputs, digital communication and a local display in one compact device.
The ESTHW50ADM measures temperature from 0 to +50 °C and relative humidity from 0–100% RH. It provides 4–20 mA analogue current outputs, allowing the measured environmental parameters to be integrated with compatible HVAC controllers, PLCs and building management systems.
For networked installations, the ESTHW50ADM also incorporates RS485 Modbus RTU communication, while its integrated LCD display provides convenient local indication. A flexible 8–35 V DC or 12–30 V AC supply, wall-mounted construction and IP65 housing make it a versatile environmental transmitter for commercial and industrial applications.
Key Advantages
- Combined temperature and relative humidity measurement in one transmitter.
- Wide 0–100% RH humidity measuring range.
- 0 to +50 °C temperature measuring range.
- Standard 4–20 mA analogue current outputs for controller integration.
- Integrated RS485 Modbus RTU communication for networked monitoring.
- Built-in LCD display provides convenient local indication.
- Flexible 8–35 V DC / 12–30 V AC power supply.
- ±2% RH humidity accuracy supports precise environmental monitoring.
Key Features
- Carlo Gavazzi EST series environmental transmitter.
- Combined temperature and relative humidity sensor.
- Wall-mount configuration.
- 0–100% RH humidity range.
- 0 to +50 °C temperature range.
- 4–20 mA analogue current output.
- RS485 Modbus RTU communication.
- Integrated LCD display.
- 20 s humidity response time.
- Plastic housing with IP65 protection.
Temperature and Humidity Monitoring with Analogue and Modbus Connectivity
Monitoring temperature and relative humidity is essential in HVAC and environmental control applications where indoor conditions must be maintained within defined limits. By combining both measurements in a single wall-mounted device, the ESTHW50ADM reduces the number of separate sensors required while providing environmental data for ventilation, climate-control and building-management functions.
The ESTHW50ADM combines 4–20 mA analogue outputs with RS485 Modbus RTU communication, allowing integration into both conventional analogue and networked control architectures. The built-in LCD display additionally enables environmental conditions to be viewed locally without relying solely on the connected control system.
Typical Applications
- HVAC temperature and humidity monitoring.
- Building management systems.
- Commercial building climate control.
- Environmental monitoring systems.
- Offices and occupied indoor spaces.
- Clean rooms and controlled environments.
- Industrial buildings and factories.
- Ventilation and air-conditioning systems.
- Modbus-connected building automation systems.
Technical Specifications
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | EST |
| Model | ESTHW50ADM |
| Product type | Temperature and relative humidity transmitter |
| Measured parameters | Temperature and relative humidity |
| Mounting type | Wall mounting |
| Temperature measuring range | 0 to +50 °C |
| Relative humidity range | 0–100% RH |
| Humidity accuracy | ±2% RH |
| Humidity response time | 20 s |
| Analogue output | 4–20 mA |
| Communication | RS485 Modbus RTU |
| Display | LCD display |
| Power supply | 8–35 V DC / 12–30 V AC |
| Housing material | Plastic |
| Housing protection rating | IP65 |
| Sensing element protection rating | IP20 |
| Operating temperature | 0 to +50 °C |
| Dimensions (W × H × D) | 80 × 130 × 38 mm |
Frequently Asked Questions
What does the Carlo Gavazzi ESTHW50ADM measure?
The ESTHW50ADM measures temperature and relative humidity, with a temperature range of 0 to +50 °C and a humidity range of 0–100% RH.
What analogue output does the ESTHW50ADM provide?
The ESTHW50ADM provides 4–20 mA analogue current outputs for integration with compatible HVAC controllers, PLCs and building management systems.
Does the ESTHW50ADM support Modbus communication?
Yes. The ESTHW50ADM incorporates RS485 Modbus RTU communication, enabling remote environmental monitoring through compatible automation and building management networks.
Does the ESTHW50ADM have a display?
Yes. The ESTHW50ADM is the display-equipped version of the wall-mounted EST temperature and humidity transmitter and includes an LCD for local indication.
What is the humidity range and accuracy of the ESTHW50ADM?
The transmitter measures 0–100% relative humidity with a specified humidity accuracy of ±2% RH.
Where is the ESTHW50ADM installed?
The ESTHW50ADM is designed for wall mounting and is suitable for HVAC, building automation, environmental control, clean-room and commercial or industrial building applications.
What power supply does the ESTHW50ADM require?
The transmitter operates from 8–35 V DC or 12–30 V AC, providing flexibility for integration with common building and industrial automation power systems.
What protection rating does the ESTHW50ADM provide?
The transmitter housing provides IP65 protection, while the sensing element is rated IP20.
Trusted by HVAC and Building Automation Professionals
Carlo Gavazzi environmental transmitters provide practical sensing and communication solutions for HVAC and building automation systems, helping engineers integrate temperature and relative humidity measurements into climate-control, environmental monitoring and energy-management applications.
