# Indoor temperature and humidity sensor ATEN EA1640 — -10 to 75 °C, compact dimensions

**URL:** https://aio.lv/en/product--aten-ea1640-at--12223422
**Data updated:** 2026-03-29 16:10 (EEST)
**Category:** Smart Sensors
**Manufacturer:** ATEN
**Manufacturer code:** EA1640-AT
**EAN:** 4710469348891
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 101.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 84.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--aten-ea1640-at--12223422

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

ATEN EA1640 is an indoor temperature and humidity sensor designed for environmental monitoring. It measures temperature in the range −10 to 75 °C and monitors relative humidity. The compact enclosure (35.7 × 104.4 × 21.4 mm) suits server rooms, offices and equipment cabinets. Useful for HVAC monitoring, climate control and asset protection. Made in Taiwan.

## Long description

ATEN EA1640 is an indoor temperature and humidity sensor designed for environmental monitoring in enclosed spaces. It measures temperature between −10 °C and 75 °C and monitors relative humidity across the full 0–100% range. The compact housing (35.7 × 104.4 × 21.4 mm) and included 1.5 m RJ-45 cable, magnet and rack-mount kits allow flexible placement inside server racks, equipment cabinets, offices and other controlled environments. The EA1640 integrates with ATEN PG series PDUs and supports daisy-chaining up to eight devices for expanded coverage.
Advantages
The EA1640 provides reliable, precise environmental readings compatible with ATEN PG PDU systems and a range of ATEN environmental sensors. Temperature accuracy is specified to ±1 °C within the 10–40 °C range and ±1.5 °C outside that band; relative humidity accuracy is ±7.5 % RH in the 30–70 % RH band and broader tolerances at lower and higher humidity levels. Multiple interfaces (RJ-45 input/output and RJ-11) and a terminal block support connections to door and leakage sensors, enabling consolidated monitoring. Compact dimensions, magnetic attachment and rack-mount accessories simplify installation in constrained spaces.
Suitable for
Server rooms and data centers for environmental monitoring and asset protection
Equipment racks and cabinets where space is limited
HVAC and climate-control verification in offices and green buildings
Healthcare and laboratory areas requiring routine temperature and humidity logging
Smart factories and industrial sites that integrate sensor data with power distribution units
Key specifications
Temperature measuring range: −10 °C to 75 °C
Temperature accuracy: ±1 °C (10–40 °C); ±1.5 °C (−10–10 °C, 40–75 °C)
Humidity measuring range: 0–100 % RH
Humidity accuracy: ±7.5 % RH (30–70 % RH); ±15 % RH (15–40 % RH, 70–90 % RH)
Interfaces: 1 × RJ-45 input, 1 × RJ-45 output, 1 × RJ-11 input, 1 × terminal block for external sensors
Daisy-chain support: up to 8 devices
Enclosure dimensions: 35.7 × 104.4 × 21.4 mm
Included accessories: 1.5 m RJ-45 cable, magnet for metallic surfaces, rack-mount kits
Indoor use
LED indicator visible through enclosure
How to use
Connect the EA1640 to an ATEN PG series PDU using the RJ-45 input port and, if required, daisy-chain additional EA1640 units via the RJ-45 output. Use the RJ-11 input or terminal block to attach compatible environmental, door or leakage sensors. Place the sensor at the monitoring point using the supplied 1.5 m cable, attach it to a metallic surface with the built-in magnet or secure it inside a rack with the included mount kit. Verify readings through the PDU management interface and set alert thresholds there when supported.
Usage recommendations
Install the EA1640 away from direct heat sources, ventilation outlets or water ingress points to ensure representative measurements. For critical installations, position sensors at the locations that reflect device intake air or room center points and validate sensor readings against a calibrated reference during initial setup. Limit daisy-chain length and device count according to installation guidelines to preserve signal integrity.

## Specifications

| Feature | Value |
|---|---|
| Cable length | 1.5 m |
| Ports quantity | 2 |
| Sensor type | Temperature & humidity sensor |
| Purpose | Indoor |
| Accuracy | 1.5 °C |
| Accuracy | 15 % |
| Standard interfaces | RJ-11 |
| Temperature measuring range | -10 - 75 |
| Humidity measuring range | 0 - 100 |

### Features

| Feature | Value |
|---|---|
| Certification | EMC/FCC, Class A |
| LED indicators | Y |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.05 kg |
| Package weight | 170 g |
| Height | 21.4 mm |
| Width | 35.7 mm |
| Depth | 104.4 mm |
| Package depth | 124 mm |
| Package height | 129 mm |
| Package width | 42 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 0 - 80 |
| Storage temperature (T-T) | -20 - 75 |
| Operating temperature (T-T) | -10 - 75 |

### Logistics data

| Feature | Value |
|---|---|
| Country of origin | Taiwan |
| Master (outer) case height | 292 mm |
| Master (outer) case width | 270 mm |
| Master (outer) case gross weight | 4980 g |
| Master (outer) case length | 470 mm |
| Harmonized System (HS) code | 90258040 |

## FAQ

### How much does the ATEN EA1640 indoor temperature & humidity sensor cost, and is it available for purchase?

The price is 101.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 23.07.2026 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. All transactions are 100% secure and encrypted.

### 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 ATEN 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 ATEN 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

### Where can I download the instructions for ATEN EA1640 indoor temperature & humidity sensor?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12223422/68117391_large.webp