The NRX-TDIFF thermal detector is a battery powered radio-frequency device,

designed to be used with the NRXI-GATE radio gateway.

It contains a transceiver and is integrated into a fire-fighting system that can be addressed

through a proprietary communication protocol.

NRX-TDIFF is a thermovelocimetric heat detector with a fixed alarm threshold of 58 ° C (A1R class).

The sensors are to be fixed to the ceiling by the base B501RF.

The devices comply with EN54-25 and EN54-5 and meet the requirements of EN 300 220 and

EN 301 489 for compliance with the R & TTE Directive.

Standby current: 120 μA to 3 V DC: (typical in normal operating mode) Red LED current:

۴ mA max. Resynchronization time: 35 s (max time from power-on device to normal

RF communication when network is active) Batteries: 4 Duracell Ultra 123 Battery life: 4 years at 25 ° C Radio frequency:

۸۶۵-۸۷۰ MHz Output power RF: 14 dBm (max) flow rate:

۵۰۰ m (typical in free air) Relative humidity: 10% to 93% (no condensation).