# Lumel P18 Temperature and Humidity Transmitter with 2x 4-20mA Outputs and Integrated Sensor

**URL:** https://aio.lv/en/product--lumel-p18-100p0--12445916
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Smart Sensors
**Manufacturer:** Lumel
**Manufacturer code:** P18 100P0
**EAN:** 5901769402027
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 144.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 119.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lumel-p18-100p0--12445916

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Lumel P18 is a high-precision transmitter designed for continuous monitoring of temperature and relative humidity. It features an integrated sensor and provides two independent 4-20mA analog outputs for seamless integration into industrial automation and HVAC control systems. This compact device ensures reliable data transmission and accurate environmental measurement in various professional applications.

## Long description

The Lumel P18 is a professional-grade transmitter engineered for the precise and continuous monitoring of ambient temperature and relative humidity. Equipped with an integrated sensor, this device is designed to deliver reliable environmental data, making it an essential component for industrial automation, building management, and HVAC control systems. Its robust construction and dual 4-20mA analog outputs allow for straightforward integration into existing monitoring networks, ensuring consistent performance in demanding professional environments.
Advantages
The primary benefit of the Lumel P18 lies in its high measurement accuracy and long-term stability, which are critical for maintaining optimal environmental conditions. By providing two independent 4-20mA current loop outputs, the transmitter allows for simultaneous monitoring of both temperature and humidity parameters without the need for complex signal conversion. Its compact design facilitates easy installation in various locations, while the integrated sensor minimizes the need for external cabling, reducing potential points of failure and simplifying the overall system architecture.
Suitable for
HVAC system monitoring and control
Environmental monitoring in server rooms and data centers
Climate control in warehouses and storage facilities
Industrial process automation
Building management systems
When it may not be suitable
This device is intended for standard environmental monitoring and may not be suitable for extreme industrial conditions involving high concentrations of corrosive gases, heavy dust, or direct exposure to liquid water. It is also not designed for applications requiring digital communication protocols like Modbus or Ethernet, as it relies exclusively on analog current loop outputs.
Key specifications
Measurement parameters: Temperature and relative humidity
Output signals: 2x 4-20mA analog outputs
Sensor type: Integrated
Application: Industrial and HVAC monitoring
Design: Compact, wall-mountable housing
How to use
To use the Lumel P18, mount the device in a location representative of the environment you wish to monitor, ensuring it is away from direct heat sources or drafts. Connect the 4-20mA outputs to your PLC, controller, or data acquisition system according to the wiring diagram provided in the technical documentation. Ensure that the power supply matches the requirements of the device to maintain signal integrity. Once powered, the transmitter will automatically begin measuring and outputting the corresponding current signals based on the detected temperature and humidity levels.
What to consider before purchase
Verify that your control system supports 4-20mA analog input signals.
Ensure the installation environment is within the specified operating temperature and humidity ranges.
Check if the integrated sensor location meets your specific monitoring requirements.
Usage recommendations
For optimal accuracy, avoid installing the transmitter near windows, doors, or ventilation outlets where rapid temperature fluctuations may occur. Regularly inspect the sensor housing to ensure it remains free of dust or debris that could affect measurement precision.

## FAQ

### How much does the Lumel P18 Temperature and Humidity Transmitter cost, and is it available for purchase?

The price is 144.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 14.07.2026 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 Lumel P18 Temperature and Humidity Transmitter 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 Lumel 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 Lumel 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/12445916/68749122_large.webp