# Indoor Temperature & Humidity Sensor HomeMatic HmIP-STH Wireless 1.5V

**URL:** https://aio.lv/en/product--homematic-150181a0--4493350
**Data updated:** 2025-12-29 17:30 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** HomeMatic
**Manufacturer code:** 150181A0
**EAN:** 4047976501816
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--homematic-150181a0--4493350

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The HomeMatic HmIP-STH is a freestanding indoor temperature and humidity sensor. It operates wirelessly and is powered by a 1.5V alkaline battery (LR03/Micro/AAA). With dimensions of 86mm x 20mm x 86mm, it is compact and easy to place in any room. The sensor provides accurate readings to help maintain optimal indoor conditions.

## Long description

The Homematic IP Temperature and Humidity Sensor (HmIP‑STH) is a compact wireless indoor sensor that measures room temperature and relative humidity for use within the Homematic IP smart home system. Powered by a 1.5 V (LR03/AAA) battery with up to two years operating time, the flat sensor can be positioned almost anywhere within wireless range. It can be mounted using the supplied adhesive strips or screws and fits into 55 mm single and multi‑gang frames from various manufacturers. The sensor works with the Homematic IP Access Point and app, the Homematic CCU2 central control unit, and selected partner solutions.
Advantages
The sensor regulates room temperature in combination with Homematic IP radiator thermostats or floor heating actuators. Its radio communication enables immediate use without complex wiring, and the battery operation allows flexible placement. Mounting options include adhesive strips, screws or installation into compatible 55 mm frames. Integration with the Homematic IP Access Point, app and CCU2 ensures centralised configuration and monitoring.
Suitable for
Monitoring indoor climate in living rooms, bedrooms and offices
Controlling Homematic IP radiator thermostats
Managing Homematic IP floor heating actuators
Installation in single or multi‑gang 55 mm frames from other manufacturers
Key specifications
Model: Homematic IP Temperature & Humidity Sensor HmIP‑STH (MPN 150181A0, EAN 4047976501816)
Power supply: 1.5 V alkaline battery (LR03/Micro/AAA), up to 2 years operating time
Dimensions: 86 mm x 20 mm x 86 mm
Wireless: radio communication for integration with Homematic IP system and CCU2
Compatibility: Homematic IP Access Point and app, Homematic CCU2, selected partner solutions
How to use
Insert the supplied battery and pair the sensor with the Homematic IP Access Point or the CCU2 according to the manufacturer's pairing instructions. Place or mount the sensor at a representative indoor location away from direct heat sources and drafts. Use the adhesive strips or screws provided for fixed mounting or install the sensor into a compatible 55 mm frame. After pairing, configure temperature and humidity-related automations via the Homematic IP app or CCU2.
Usage recommendations
The sensor should be mounted at breathing height for accurate room readings and not directly above radiators, heat sources or in direct sunlight. Replace the battery when the app or central unit indicates low battery to ensure uninterrupted operation.

## Specifications

| Feature | Value |
|---|---|
| Type | Freestanding |
| Weight | 0.085 kg |
| Certification | CE |
| Battery technology | Alkaline |
| Package weight | 163 g |
| Battery type | LR03/Micro/AAA |
| Operating temperature (T-T) | 5 - 35 |
| Number of batteries supported | 2 |
| Height | 86 mm |
| Sensor type | Temperature & humidity sensor |
| Width | 86 mm |
| Depth | 20 mm |
| Connectivity technology | Wireless |
| Purpose | Indoor |
| Package depth | 112 mm |
| Package height | 48 mm |
| Package width | 122 mm |
| Battery voltage | 1.5 V |
| RF transmission frequency | 869.525 MHz |

## FAQ

### How much does the Indoor Temperature & Humidity Sensor HomeMatic HmIP-STH cost, and is it available for purchase?

The price is 41.49 € (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 09.07.2026 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. 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 HomeMatic 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 HomeMatic 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 Indoor Temperature & Humidity Sensor HomeMatic HmIP-STH?

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/4493350/54671239_large.webp