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Fire Alarm System

Addressable heat detector

JTW-ZD-920E

Product features

Built-in standalone CPU, quick calculating speed and excellent stability.

Non-polarity two-wire bus to make cabling easy, and avoid wrong wiring.

Sealed robber type of heat sensitivity component enhances anti-humidity and anti-erosion. 

Three sensitivity levels of the detector are optional at the control panel to suit different environments.

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  • JTW-ZD-920E point type heat fire detectors (Detector hereunder) is a mated product of the fire alarm control panel(JB-QBL-MN/300E).It uses a two-bus work mode. With an internal microprocessor, it supports electronic coding. The detector realizes real-time acquisition of the in situ temperature data and sends back the data to a fire alarm control panel. It can also receive and execute the control commands given by a fire alarm control panel. When in a routing inspection, the detector indicator will blink. When there is a fire in the monitored area and the temperature has reached the alarm threshold, the fire alarm control panel will confirm a fire alarm according to the received message sent from the detector, and the detector indicator will light at the same time to indicate a fire alarm.


  • The detector is suitable for such industrial and civil buildings that have a great deal of heat when fire takes place, such as kitchens, boiler rooms, generator rooms, drying workshops and smoking rooms and is not suitable for places with a great deal of smoke but little heat.

Technical Parameters:
Operating EnvironmentIndoors,temperature:-10℃~+50℃;relative humidity:≤95%(40℃±2℃,non condensing)
Operating VoltageTwo-wire Bus 24V
Operating Current

Monitoring:<300uA;Alarm:<1.5mA

IndicatorBlinks when polling and keeps on when alarming
WiringTwo-wire Bus system
MountingCeiling-mount
DimensionDiameter 100mm, height 56mm
Matched BaseDZ-910
Alarm temperature54℃~70℃
CodingAddressable
CertificationCCC (GB4716-2005)


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Headquarter in Shenzhen


Tel: +86 755 2690 9106


Fax: 86 755 8622 6969


E-mail: sales@fhsjdz.com


Add: 3F, Guangcai Xin Tian Di Building, Nanshan Road, Nanshan District, Shenzhen, 518054, P.R.China


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