# Rosemount 644RAI1C4Q4 Temperature Transmitter – Industrial Automation

The **Rosemount 644RAI1C4Q4 Temperature Transmitter** is engineered for precise temperature measurement in demanding industrial environments. Part of the Rosemount Smart Family, it ensures reliable performance in critical control systems.

This transmitter features a 4-20mA output signal and operates efficiently with a 12.0-42.4 Vdc supply voltage. Its robust design includes a Power Loop capable of handling up to 30V and 200mA, making it suitable for hazardous locations. The **Pt100\_385 4 Wire sensor** configuration guarantees accurate and consistent temperature readings.

-   **High Accuracy**: Delivers precise temperature measurements.
-   **Hazardous Area Certification**: Safe for use in classified environments.
-   **Robust Construction**: Ensures long-lasting performance.
-   **Easy Installation**: Lightweight design for simple setup.
-   **4-20mA Output**: Standard signal for seamless integration.

**Specifications:**  
Supply Voltage: 12.0-42.4 Vdc  
Output Signal: 4-20mA  
Sensor Type: Pt100\_385 4 Wire  
Operating Temperature: 0 to 200 degrees Celsius

Trust the **Rosemount 644RAI1C4Q4 Temperature Transmitter** for superior reliability and accuracy in your industrial automation systems. Upgrade your control processes today for enhanced efficiency.

Also our company name is Ram Automations and also you can contact us on email info@ramautomations.com

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Industrial Automation > Sensors > Temperature Transmitters
- **Tags:** 644RAI1C4Q4, industrial automation, process control, rosemount, temperature sensor, temperature transmitter

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Rosemount 644RAI1C4Q4 Temperature Transmitter – Industrial Automation-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/rosemount-644rai1c4q4-temperature-transmitter)
> Updated: 2026-09-19