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6th Edition


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Models VDOT-H2 and VDOT-H2-H is an attractively styled, low profile heat detector for use with the Fire Alarm Control Panel of  Velocity MMP control panel series.    


These heat detectors are intelligent (addressable) detectors and have the ability for each detector address  to provide exact detector locations.    


The detector sensitivity is continually monitored and reported to the  panel.  The detectors incorporate a highly linear thermistor circuit, with the thermistor mounted externally.

The specially designed cover protects the thermistor whilst allowing maximum air flow. The thermistor circuit produces a voltage proportional to the temperature which is scaled, and transmitted as a digitally encoded value to the control panel.

The VDOT-H2 and VDOT-H2-H require compatible addressable  

communications to the control panel in order to function properly.    


All detectors have random addresses from the factory before 

installation. The VDOT-AD2 Address Programmer is used for setting the address between 1 and 254 decimal of all devices prior to installation. Once addressed connect these detectors to only UL listed-compatible control panels.     
The VDOT-H2 is a 8.3°C (15°F) rate-of-rise temperature heat 
detector with 57°C (134°F) fixed temperature alarm.
The VDOT-H2-H is a high temperature heat detector with 83°C

(181°F) fixed temperature alarm.

7th Edition





The VDOT-H3 and VDOT-H3(-H) is UL 521 approved analog addressable heat detector. The detectors are compatible with the Velocity Detection MMP panel range.


The VDOT-H3 is a 8.3°C (15°F) / min rate-of-rise temperature heat detector with 57°C (135°F) fixed temperature alarm.                


The VDOT-H3(-H) is a high temperature heat detector with 83°C (181°F) fixed temperature alarm.


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


The detector incorporates a heat sensing thermistor, mounted outside of smoke chamber, with the high linear circuit. The specially designed cover protects the thermistor while taking airflow.


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.


•    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.

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



• H3 : Rate of rise and Fixed heat detection at 57°C (135 °F),

• H3(-H) Fixed heat detection at 83 °C (181 °F).

• Low profile, and stylish design

• Low monitoring current • OMNIVIEW™ 360 degrees LED indicator

• Remote indicator output

• Address selectable from a range of 1 to 254

• Provide with a dust cover

• Approved to UL 521


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