AI-RHT4

Jumbo 4-Inch Humidity Temperature Indicator

temp
HUMidity

Product Description

The AI-RHT4 jumbo display temperature humidity indicator delivers highly visible, real-time environmental monitoring for facilities where temperature and humidity readings need to be seen from a distance. As a large LED display temperature humidity indicator, it features dual
4-inch high-brightness red LED displays showing temperature and relative humidity
simultaneously on separate, clearly labeled rows, making it ideal for control rooms, production floors, warehouses, and cleanroom corridors.

Available as a wall mount temperature humidity indicator with external sensor (cable runs up to 10 meters) or with a built-in sensor, the AI-RHT4 offers flexible installation for applications where the display unit and the measurement point need to be located apart, such as cold storage viewing panels or wall-mounted monitoring stations outside a controlled environment.

Built on a capacitive polymer combination sensor, this industrial temperature humidity display manufacturer-grade unit provides stable, accurate readings across a wide operating range, housed in a rust-resistant, IP68 cable gland temperature humidity indicator enclosure designed for continuous industrial use. An optional temperature humidity indicator with Modbus output
(RS 485) allows the AI-RHT4 to integrate directly into existing BMS or SCADA systems for centralized monitoring, making it a strong fit as a BMS SCADA integrated temperature humidity indicator for regulated facilities.

Manufactured by ACE Instruments, an ISO 9001:2015 certified temperature humidity indicator manufacturer based in Hyderabad, India, the AI-RHT4 is supplied to customers across India and the GCC region.

Key Features & Benefits

  • Jumbo 4-inch LED display: High-brightness red 7-segment digits ensure readability from across a room or through a viewing window, even in low-light industrial environments, ideal for anyone searching for a big digit temperature humidity display for warehouse.
  • Dual-parameter monitoring: Simultaneous temperature and humidity display eliminates the need for two separate instruments.
  • Flexible sensor configuration: Choose built-in sensing for compact installations, or a 4 inch LED temperature humidity indicator with 10 meter external sensor for remote or hard-to-access monitoring points.
  • Industrial-grade accuracy: ±0.3°C accuracy jumbo temperature display performance, with ±1.8% RH (10 to 95% RH), ensures dependable data for process and compliance monitoring.
  • Rugged, corrosion-resistant build: Powder coated mild steel humidity temperature display panel with IP-68 rated cable glands protects against dust, moisture, and industrial wear.
  • BMS/SCADA ready: Optional RS 485 Modbus communication supports seamless integration into building automation and centralized monitoring systems.
  • Simple wall mounting: Designed for straightforward installation with clearly marked cable entry points for four-core cable.

Applications

  • Cold Storage & Warehousing
    A reliable temperature humidity display for cold storage, providing clear, at-a-glance visibility for cold rooms, warehouses, and distribution centers where staff need to monitor conditions without entering the storage area, including through a cold storage viewing window.
  • Pharmaceutical & Cleanroom Facilities
    Supports environmental monitoring in GMP-regulated spaces, functioning as a wall mounted humidity indicator for cleanroom corridor viewing panel where visible temperature and humidity data aids compliance checks and routine audits.
  • Production & Process Areas
    Gives operators and supervisors continuous visual confirmation of ambient conditions on the factory floor, helping maintain process consistency in a temperature humidity display for control room.
  • Server Rooms & Control Panels
    Monitors environmental conditions in equipment rooms where temperature and humidity swings can affect sensitive electronics.
  • Laboratories & Quality Control Rooms
    Offers reliable, easy-to-read environmental data for labs where consistent temperature and humidity are part of testing protocols.


Specifications

Measurement Parameters

Temperature, Humidity

Temperature

Measuring Range: 0.0 to 50.0°C (typical; custom ranges available on request)
Accuracy: ±0.3°C ±1 count (0.0 to 50.0°C)

Humidity

Measuring Range: 0.0 to 99.9% RH (typical)
Accuracy: ±1.8% for 10 to 95% RH; ±2% for all other ranges

Display Size

3-digit, 7-segment high-brightness red LED, 4" height, for both temperature and humidity

Sensor Type

Built-in or external wired sensor for temperature and relative humidity

Mounting

Wall-Mounting

Communication (Optional)

RS 485 Modbus protocol for BMS/SCADA integration

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Frequently Asked Questions

1. What is the AI-RHT4 Jumbo Humidity Temperature Indicator?

The AI-RHT4 is a large-display humidity and temperature indicator designed for continuous monitoring of ambient conditions. Its bright 4-inch LED display allows temperature and humidity readings to be viewed clearly from long distances, making it ideal for industrial and commercial environments.

2. Why is monitoring temperature and humidity important?

Temperature and humidity directly affect product quality, employee comfort, equipment performance, and regulatory compliance. Continuous monitoring helps maintain stable environmental conditions, reducing the risk of product spoilage, process deviations, and equipment failures.

3. Where is the AI-RHT4 commonly used?

The AI-RHT4 is suitable for:

  • Pharmaceutical manufacturing areas
  • Cleanrooms
  • Warehouses
  • Hospitals
  • Laboratories
  • Food processing units
  • HVAC systems
  • Cold storage facilities
  • Electronics manufacturing
  • Commercial buildings
4. What parameters does the AI-RHT4 measure?

The instrument simultaneously measures:

  • Relative Humidity (%RH)
  • Temperature (°C or °F)

Both values are displayed continuously on the large LED screen.

5. How far away can the display be read?

The jumbo 4-inch LED display is designed for excellent visibility and can typically be read from distances of up to 30-50 meters, depending on lighting conditions.

6. Is the AI-RHT4 suitable for cleanroom applications?

Yes. The AI-RHT4 is widely used in pharmaceutical cleanrooms, laboratories, and controlled environments where continuous monitoring of temperature and humidity is essential for compliance and process stability.

7. Does the indicator store data?

The standard AI-RHT4 functions as a real-time display indicator. Data logging and historical records can be achieved when integrated with compatible monitoring systems or Building Management Systems (BMS), depending on the configuration.

8. Can it be connected to a Building Management System (BMS)?

Yes. Models with RS-485 Modbus communication can be integrated with BMS, SCADA, or central monitoring systems for remote monitoring and data collection.

9. Is the display visible in bright industrial environments?

Yes. The high-brightness LED display ensures excellent readability even in well-lit production areas and factory floors.

10. How accurate are the measurements?

The AI-RHT4 uses high-quality humidity and temperature sensors to provide reliable and stable measurements suitable for industrial monitoring applications.

11. Can the display show both Celsius and Fahrenheit?

Yes. Depending on the model configuration, temperature can be displayed in either °C or °F.

12. Does the instrument require frequent maintenance?

Routine maintenance is minimal. Periodic cleaning and sensor calibration, based on the application and quality system requirements, help maintain long-term measurement accuracy.

13. Is calibration available?

Yes. ACE Instruments can supply calibration certificates upon request and also offers recalibration support as part of preventive maintenance programs.

14. What power supply options are available?

The AI-RHT4 is available with standard industrial power supply options. The exact voltage depends on the selected model and application requirements.

15. Can the AI-RHT4 be wall mounted?

Yes. The instrument is designed for easy wall mounting, making it suitable for production floors, warehouses, laboratories, and cleanroom corridors.

16. What are the benefits of using a jumbo display?

A large display offers several advantages:

  • Easy viewing from long distances
  • Reduces manual inspection
  • Improves operator awareness
  • Helps maintain environmental compliance
  • Enhances workplace efficiency

17. Why choose ACE Instruments?

ACE Instruments has over three decades of experience in manufacturing environmental monitoring instruments. Customers choose ACE because of:

  • Reliable industrial-grade products
  • High measurement accuracy
  • Customization options
  • Technical support
  • Calibration services
  • Fast after-sales assistance
  • Trusted installations across pharmaceutical, healthcare, HVAC, and industrial sectors

18. Can the AI-RHT4 be customized?

Yes. Depending on project requirements, customization options may include:

  • Communication interfaces
  • Display configuration
  • Mounting options
  • Power supply
  • Sensor ranges
  • Customer-specific requirements
19. Who should use the AI-RHT4?

The AI-RHT4 is ideal for:

  • Quality Assurance teams
  • Facility Managers
  • HVAC Engineers
  • Production Managers
  • Cleanroom Consultants
  • Maintenance Engineers
  • Building Management Professionals
20. How can I select the right model?

Our technical team can recommend the most suitable AI-RHT4 configuration based on your application, installation environment, communication requirements, and monitoring objectives.

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