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esthw50am – temp rh wall tx current output with com
Carlo Gavazzi ESTHW50AM is a wall-mounted temperature and relative humidity transmitter with 4–20 mA analogue outputs and RS485 Modbus communication for HVAC and building automation applications.
Why Choose the Carlo Gavazzi ESTHW50AM Temperature and Humidity Transmitter?
The Carlo Gavazzi ESTHW50AM is a wall-mounted temperature and relative humidity transmitter designed for HVAC, building automation and indoor environmental monitoring applications. Part of the Carlo Gavazzi EST environmental sensor range, it combines temperature and humidity measurement in one compact device with analogue current outputs and digital communication.
The ESTHW50AM measures temperature from 0 to +50 °C and relative humidity from 0–100% RH. It provides 4–20 mA analogue outputs, enabling temperature and humidity measurements to be connected directly to compatible HVAC controllers, PLCs and building management systems.
For networked building automation, the ESTHW50AM also incorporates RS485 Modbus communication. This version is supplied without a display, making it suitable for installations where measurements are monitored remotely through the connected control system. Its wall-mounted plastic enclosure provides IP65 housing protection for dependable environmental monitoring.
Key Advantages
- Combined temperature and relative humidity measurement in a single 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 communication for networked monitoring.
- Wall-mounted configuration suited to indoor environmental measurement.
- Flexible 8–35 V DC / 12–30 V AC power supply.
- Robust plastic housing with IP65 protection.
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 outputs.
- RS485 Modbus communication.
- Without local display.
- 8–35 V DC / 12–30 V AC supply.
- Plastic housing with IP65 protection.
Temperature and Humidity Monitoring with Analogue and Modbus Connectivity
Temperature and relative humidity are important environmental parameters in HVAC and building automation systems. Monitoring both measurements from a single wall-mounted transmitter allows control systems to assess indoor conditions and use the resulting data for ventilation, heating, cooling and environmental management functions.
The ESTHW50AM combines 4–20 mA analogue signalling with RS485 Modbus communication, allowing it to be incorporated into both conventional analogue and networked automation architectures. As the non-display version, measurements can be monitored through the connected controller, PLC or building management system without requiring a local visual interface.
Typical Applications
- HVAC temperature and humidity monitoring.
- Building management systems.
- Commercial building climate control.
- Indoor environmental monitoring.
- Ventilation and air-conditioning systems.
- Offices and occupied indoor spaces.
- Industrial building monitoring.
- Temperature and humidity control systems.
- Modbus-connected building automation networks.
Technical Specifications
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | EST |
| Model | ESTHW50AM |
| 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 |
| Analogue output | 4–20 mA |
| Communication | RS485 Modbus |
| Display | No |
| 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 |
| Standardised dimensions | 80 × 130 × 38 mm |
Frequently Asked Questions
What does the Carlo Gavazzi ESTHW50AM measure?
The ESTHW50AM measures temperature and relative humidity, with a temperature measuring range of 0 to +50 °C and a relative humidity range of 0–100% RH.
What output does the ESTHW50AM provide?
The ESTHW50AM provides 4–20 mA analogue current outputs for integration with compatible HVAC controllers, PLCs and building management systems.
Does the ESTHW50AM support Modbus communication?
Yes. The ESTHW50AM incorporates RS485 Modbus communication, enabling temperature and humidity measurements to be integrated into compatible digital building automation networks.
Does the ESTHW50AM have a display?
No. The ESTHW50AM is supplied without a display. For applications requiring local indication, the ESTHW50ADM is the corresponding 4–20 mA, communication-enabled version with a display.
What is the humidity measuring range of the ESTHW50AM?
The ESTHW50AM measures 0–100% relative humidity, making it suitable for a wide variety of HVAC and indoor environmental monitoring applications.
Where is the ESTHW50AM installed?
The ESTHW50AM is designed for wall mounting in indoor HVAC, building automation and environmental monitoring installations.
What power supply does the ESTHW50AM require?
The transmitter operates from 8–35 V DC or 12–30 V AC, providing flexibility for common building and industrial automation installations.
What protection rating does the ESTHW50AM 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, ventilation and environmental monitoring applications.
