Answer:
The SEWACall KW4H2 has an enclosure measuring 85 mm x 85 mm x 10 mm and operates on a 433.92 MHz carrier frequency using AM modulation with an open transmission distance of up to 100 meters. It runs on DC 12V at 10 mA working current, powered by a 23A 12V battery (they are not included), with an Effective Radiated Power (ERP) of 2.58 to 3.69 mW.
The SEWACall KW4H2 (KT reference KTI0401200WKW4H) is a compact, surface-mount wireless transmitter engineered for healthcare and institutional alert signaling. Detailed technical parameters include:
- Dimensions: 85 mm (width) x 85 mm (height) x 10 mm (depth) low-profile footprint.
- RF Carrier Frequency: 433.92 MHz.
- Modulation Scheme: AM (Amplitude Modulation).
- Effective Radiated Power (ERP): 2.58 mW to 3.69 mW.
- Transmission Range: Up to 100 meters under line-of-sight / open-area test conditions.
- Operating Voltage & Current: DC 12V working voltage with an operational current draw of 10 mA.
- Power Source: Requires one 23A 12V battery (they are not included).
