Description
HDL-MASTH.2C is an indoor ceiling-mounted environmental sensor for HDL Buspro systems. It measures temperature, relative humidity and ambient illumination and provides configurable dry-contact inputs and logic functions to operate compatible HDL devices.
Sensor capabilities
- Temperature measurement: −20 to +60 °C
- Ambient illuminance: 0–5,000 lux
- Humidity: 20–95% RH
- Two dry-contact inputs and two virtual universal switch functions
- 24 programmable logic blocks with AND/OR relationships
- Can trigger scenes, lighting, curtains and compatible Buspro controls
Technical parameters
- Supply: 12–30 V DC HDL Buspro; 25 mA at 24 V
- Dimensions: Ø80 × 32 mm
- Net weight: 92.5 g
- Indoor ceiling mount; ABS housing, IP20
- Working ambient: −5 to +45 °C
Important model clarification
The official model documentation specifies ceiling mounting. Do not confuse this device with a wall-mounted outdoor sensor or an unrelated surface-mounted model. Verify opening and wiring requirements with the installer.
Official HDL MASTH.2C specifications
Ordering
Exact model photograph shown. Supplier availability and final retail price remain unconfirmed. catalogue listing listing.
Additional photographs show manufacturer reference views of this exact model, including different angles and device connections. Photo source: HDL Automation official product gallery — HDL-MASTH.2C. Verify the supplied revision and EU compatibility before installation.




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