Reference number:

7505021 : NRS1 Heated rain sensor
7505034 : NRS1/R Heated rain sensor with radio transmission

Mention the desired references


NRS1- NRS1/R – Technical Data

Power supply tension 12V ÷ 24V═ (DC)
Maximum absorption power 20 mA – (120 mA with active heater)
Type of sensor Capacitive
Heater intervention < +4 °C
Contact type SPDT
Rating contact 0,5 A / 125VAC – 1 A / 24VDC
Radio transmission frequency 433,92 MHz
Working temperature -20 ÷ +65 °C
Feeding cable length 5 m
Feeding cable type – wire number PVC LiY2Y protected from UV – 5 wires
Protection index IP65
Dimensions 45 x 93 h=19 mm
Weight 52 g (cable excluded)


The rain detector device should be placed out in the open where it can interact with the actuators in the event of continuous rain. The sensor can be connected:
• directly by wire to the KATO RADIO ADV – NRS1;
• directly by radio signal to the KATO RADIO ADV – NRS1R
• directly by wire to the K-series control units and to all the equipment which provides for processing of the signal or where a dry (potential-free) contact signal is necessary.
The sensor is not sensitive to dewdrops or humidity, dries quickly after rainfall and does not allow the formation of ice. The power supply cable is 5 m long, built to withstand the harsh outdoor environment with a highly weather-resistant PVC sheath which is also non fire-propagating and resistant to UV radiation.


Technical information