Description
NITTAN SYSTEM
NS-AH/A1S
HEAT SENSOR
REMOTE OUTPUT: 2MA
ANALOGUE RANGE: -25℃~ 90℃
RATING: 24V DC
0.2MA NORMAL
2.5MA ALARM
NS-ADAPT-IS2
DETECTOR BASE
095045
MADE IN ENGLAND
The Nittan NS-AH/A1S is an analogue heat sensor, supplied here together with the NS-Adapt-IS2 detector base, for use in a ship’s fire alarm system. It monitors temperature across an analogue range of -25 °C to 90 °C and signals a fire condition when heat builds up in the protected space. Rated at 24 V DC, it draws 0.2 mA in normal state and 2.5 mA in alarm, with a 2 mA remote output. The set is marked 095045 and was made in England. Both items are in used condition.
Key Features
✓ Analogue range -25 °C to 90 °C
✓ 24 V DC rating
✓ Current draw 0.2 mA normal, 2.5 mA alarm
✓ 2 mA remote output
✓ NS-Adapt-IS2 detector base included
Marine Applications
✓ Heat detection in galleys and laundries
✓ Heat monitoring in engine rooms and purifier rooms
✓ Detection in boiler and incinerator spaces
✓ Temperature watch in emergency generator rooms
Technical Support
Prota Marine provides technical support, repair and onboard installation for the Nittan NS-AH/A1S heat sensor and the wider fire alarm system. We help with fault diagnosis on heat detector circuits and with commissioning of the sensor and its NS-Adapt-IS2 base.



