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6th Edition


7th Edition





The VDOT-PY is an attractively-styled, low profile, analogue addressable, photoelectric smoke detector for use with the Velocity MMP control panel series in analogue fire alarm systems.


This analogue addressable photoelectric smoke detector has a specific detector address to provide exact detector locations throughout the installation. This allows for constant monitoring of the detector sensitivity and reports the detectors condition to the fire alarm control panel.

Detector Models

The VDOT-PY has a new sophisticated smoke chamber design and an orange sensor LED which can provide the same sensitive detection regardless of the type of smoke.

This detector has a chemically etched, stainless steel insect screen, therefore reducing the ingress of insects and airborne contaminants.

The VDOT-PY has two terminals for connection onto the two wire loop. The remaining terminal provides a switched current sink function which operates when the detector goes into alarm condition, suitable or the operation of an auxiliary function such as a remote indicator. Terminal 3 (RIL) is limited to 2mA.


The VDOT-PY3 is a UL268 7th edition approved analog addressable photoelectric smoke detector.

Advanced sensing algorithms by single smoke sensor analyses the type of smokes and reduce nuisance alarms.


The detector is compatible with the Velocity Detection MMP panel range.


Stylish designed and low profile, also the detector is equipped with OMNIVIEW™ indicator, which provides 360 degrees of alarm status visibility by red light.


Detector address is selectable from the range of 1 to 254, and programmed by using the VDOT-AD2 handheld address-setting tool.

A remote LED indicator can be connected to the detector Terminal 3 (RIL) directly.


The VDOT-PY3 monitors smoke sensitivity inside a smoke chamber, and the drift compensation feature regularly adjusts it to maintain the appropriate range.


• Responds well to both black and white smoke.

• Low Profile, stylish appearance.

• Low monitoring current.


• Remote indicator output.

• Locking mechanism to avoid unauthorised removal.

• Supplied with protective dust cover.

• Address settable from 001 to 254 by a dedicated  programmer.

• Automatic sensitivity compensation.

• Adjustable sensitivity via control panel software.

• Corresponds to auto-test function of Velocity MMP series control panel



• Capable of detecting both black and white smoke

• Low profi le, and stylish design

• OMNIVIEW™ 360 degrees LED indicator

• Remote indicator output

• Address selectable from a range of 1 to 254

• Provide with a dust cover

• Sensitivity drift compensation feature

• Selectable sensitivity from three levels

• Low monitoring current

• Reduce cooking nuisance alarms

• Approved to UL268 7th edition


Detector Dimensions DPH.JPG
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