Smart home heating starter set HomeMatic HmIP-SK28 — basic heating control components

HomeMatic pure wall-mounted indoor wireless sensor in white is designed for room installation where mains power is not available. The sensor features IP20 protection, is powered by a single 1.5 V AA battery and comes as a pack of two units. With compact dimensions of 56.5 × 56.5 × 95 mm and an operating temperature range of 0–50 °C, the devices provide simple, battery-operated monitoring for homes and offices and integrate into HomeMatic systems for basic environmental or status sensing.

Advantages

The sensor provides a discreet and compact solution for indoor monitoring without the need for wiring or mains power. Battery operation and a small mounting footprint make it easy to position on walls in different rooms. The white housing and neutral design suit typical indoor environments. Supplied as a pack of two, the set enables simultaneous monitoring of multiple locations and straightforward integration into HomeMatic-compatible setups for centralized observation and control.

Suitable for

• Monitoring room conditions in apartments and single-family homes
• Office rooms or common areas where power outlets are limited
• Integration into HomeMatic systems for status reporting and basic automation

Key specifications

• Protection class: IP20 for indoor use
• Power supply: 1.5 V AA battery per sensor
• Operating temperature range: 0–50 °C
• Dimensions (W × D × H): 56.5 × 56.5 × 95 mm
• Color: white housing suitable for standard interior mounting
• Package contents: two identical wall-mounted indoor wireless sensors

How to use

Mount the sensor on a suitable indoor wall surface at the recommended height for the parameter you intend to monitor. Insert a single 1.5 V AA battery into each unit following polarity markings and close the battery compartment securely. Add the sensor to your HomeMatic system according to the gateway or central unit pairing procedure and allow the system to recognize the device. After pairing, verify communication and place the sensors in the rooms where monitoring or status reporting is required.

Recommendations

Place sensors away from direct heat sources, drafts and windows to ensure representative measurements. Check battery level periodically and replace batteries when the system indicates low power. Use the two-piece pack to cover multiple rooms or to create redundancy in key areas. For reliable operation, maintain the HomeMatic gateway connection and keep devices within recommended wireless range.