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The range of industrial TETRA handsets

Funkwerk FT4 S: TETRA handset for personal security

Funkwerk FT4 S: TETRA handset for personal security

The funkwerk FT4 S is equipped with integrated sensors for the automatic recognition of dangerous situations and the initiation of alarms. A unique function allows indoor localisation in the event of an emergency. The comprehensive range of security features includes cyclic testing of sensor functions and an optional GPS module.

Specially developed for personal security and certified in accordance with German Employer’s Liability Insurance Association Rules (BGR139), the FT4 S offers, in combination with the Funkwerk TSS TETRA Secury System, the greatest possible protection in hazardous environments and for lone workers.

Device characteristics
Size 145 x 60 x 36 mm
Display 2,2“ TFT, 240 * 320 Pixel (QVGA), 262.000 colours
Temperature -20 - +50°C (operation), -30 - +75°C (storage)
Protection IP65 (dust-tight and water-jets protected)
Battery 1700 mAh, incl. Vibration (for EX devices)
2700 mAh, incl. Vibration (for Non-EX devices)
Operating time up to 24h (2700 mAh) / up to 14h (1700mAh)
5% Transmit / 5% Receive / 90% Standby, without GPS
RF characteristics
Frequency range 380-430 MHz / 410-470 MHz
Channel spacing 25 KHz
Duplex spacing 10 MHz
Output power 1W , Class 4 (adjustable in 3 steps of 5dB)
Receiver Class A&B
Sensitivity -112dBm/-103 dBm (static/dynamic)
GPS (option)
Sensitivity -155 dBm / -152 dBm (Trace / Acquisition)