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Nittan Evolution Dual Optical With Heat Detector


SKU: 6f5ff5c63e45 Category: Brand:


Using the scattered light principle inherent in optical detectors, the EV-DP Dual Optical Detector goes one step further and uses both IR and blue LEDs to provide a more accurate measurement of particles within the chamber. By calculating the ratio of these light sources, which operate at different wavelengths, the EV-DP can determine the particle size and thus distinguish between smoke and non-combustion products such as steam and dust. This patented, award winning sensor technology unique to Nittan, is further enhanced by the addition of a Heat sensor with Class A2R, Rate or Rise performance. This provides an excellent solution to false alarms in areas prone to steam and dust, including hotels, hospitals and other areas of multiple occupancy.


  • Dual Optical Technology Plus Heat Sensor Reduces False Alarms.
  • Evolution FSK protocol.
  • EEPROM Addressed (Programmer).
  • RIL and Base Control Outputs.


  • Part Number
    • EV-DPH-A2R : Rate of Rise
    • EV-DPH-CS : 92°C
  • Sensor Method : Light Scatter, Thermally Sensitive Resistor 
  • Sensor Element : 2 x Light Emitting Diode, 2 x Thermistor 
  • Operating Voltage : 20V DC to 38V DC
  • System Voltage : 35V DC
  • Quiescent Current : 200µA
  • Alarm Current : 5mA
  • Current For External Remote LED Indicator : 2mA
  • Operating Temperature : -10°C to +80°C
  • Storage Temperature : -25°C to +80°C
  • Charging Time : 4 minutes
  • Relative Humidity : ≤ RH95% non-condensing.
  • I.P. Protection Rating : IP42
  • Addressing Method : Soft addressing, Non-Volatile EEPROM
  • Material : ABS
  • Dimensions :
    • Head Only : 104mm x 33mm
    • Head With Base (UB-6-EV) : 104mm x 48mm
  • Weight :
    • Head Only : 118g
    • Head With Base (UB-6-EV) : 183g
  • EMC Conformance : EMC conformance to BSEN50130-4
  • CE Conformity : Yes
  • Standards / Certification : EN54-5, EN54-7
  • CPR Number : 2531-CPR-232.1685
  • DoP Number : 1685


Additional information

Weight 0.12 kg

A2R – Rate of Rise, CS – 92 Degrees


Detection Type

Device Type

Hazardous Applications

Marine Applications


System Type

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