# FF AT-3I Analog Temperature Transmitter 4-20mA for PT100 Sensor

**URL:** https://aio.lv/en/product--ff-at-3i--12447768
**Data updated:** 2026-05-18 02:53 (EEST)
**Category:** Smart Sensors
**Manufacturer:** FF
**Manufacturer code:** AT-3I
**EAN:** 5908312595274
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 126.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 104.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-at-3i--12447768

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The FF AT-3I is an analog temperature transmitter designed for PT100 resistance temperature detectors. It converts temperature readings into a standard 4-20mA current signal, ensuring precise data transmission for industrial automation and control systems. This device is supplied without a probe and is suitable for professional monitoring applications requiring reliable signal conversion in various technical environments.

## Long description

The FF AT-3I is a professional analog temperature transmitter specifically engineered to interface with PT100 resistance temperature detectors. This device serves as a critical link in industrial automation, converting raw resistance-based temperature readings into a standardized 4-20mA current signal. By providing a stable and reliable output, it ensures that temperature data can be transmitted over long distances without signal degradation, making it an essential component for precise monitoring and control systems in various technical environments.
Advantages
The primary advantage of the FF AT-3I is its ability to provide high-precision signal conversion, which is vital for maintaining accuracy in industrial processes. Its robust design ensures consistent performance even in demanding conditions, while the standardized 4-20mA output allows for seamless integration with a wide range of PLCs, controllers, and data acquisition systems. The device is compact and efficient, facilitating easy installation within control cabinets or field enclosures, and it offers a reliable solution for long-term temperature monitoring without the need for frequent recalibration.
Suitable for
Industrial temperature monitoring systems
HVAC control and automation
Process control in manufacturing
Integration with PLC and SCADA systems
Environmental monitoring in technical facilities
When it may not be suitable
This transmitter is not suitable for applications requiring direct digital communication protocols like Modbus or Profibus, as it provides an analog output only. Additionally, it is not designed for use with sensor types other than PT100, and it does not include a built-in display for local temperature readout.
Key specifications
Input sensor type: PT100
Output signal: 4-20mA current loop
Operating mode: Analog signal conversion
Compatibility: Standard industrial control equipment
How to use
To use the FF AT-3I, connect the PT100 sensor leads to the designated input terminals on the transmitter. Ensure that the wiring is secure and follows the correct polarity to prevent measurement errors. Connect the 4-20mA output terminals to your control system or monitoring device, ensuring the loop power supply is within the specified voltage range. Once connected, the device will automatically begin converting the resistance changes from the PT100 sensor into the corresponding current signal for your control system to interpret.
What to consider before purchase
Ensure your control system supports 4-20mA analog inputs
Verify that your existing PT100 probe is compatible with the terminal configuration
Confirm that the power supply voltage matches the transmitter requirements
Assess the environmental conditions of the installation site to ensure proper enclosure protection
Usage recommendations
Always use shielded cabling for the 4-20mA signal path to minimize electromagnetic interference in industrial environments. Ensure that all connections are tightened properly and that the device is housed in an appropriate enclosure if installed in areas exposed to dust or moisture.

## FAQ

### How much does the FF AT-3I Analog Temperature Transmitter for PT100 cost, and is it available for purchase?

The price is 126.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can FF AT-3I Analog Temperature Transmitter for PT100 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FF products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FF service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12447768/68750812_large.webp