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Conventional

Conventional heat detector

JTW-ZD-920KE

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. 

Read more detail
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  • JTW-ZD-920KE point-type fixed temperature heat detector (Detector hereunder) is a two-wire switch-type temperature-sensing detector. As a non-polar two-wire connection is adopted in the detector,it is compatible in conventional switch-type alarm control systems and monitoring alarm systems. The detector can also be connected with intelligent bus fire alarm control systems via a interface module. The detector monitors temperature in the workplace in real time. While monitoring, the red indicator blinks and the working current is low. When the work site temperature has exceeded the preset alarm threshold, the alarm detectors and the red indicator remain on, while the loop current is increased. The detector’s alarm signal can be locked and is displayed by changes in the loop current. The alarm can only be reset by the instant power disconnection.


  • The detector is applicable in places where fire might generate volume heat, i.e. in industrial and civil buildings such as in the kitchen, boiler room, generator room, drying plant, and smoking room. However,it is not suitable for places where volume smoke and low heat is generated during a fire, or a place where a smoldering fire might occur.

Technical Parameters:
Operating EnvironmentIndoors,  temperature: -10℃~+50℃;  relative  humidity: ≤95%   (40℃±2℃,  non condensing)
Operating VoltageDC24V±20%
Operating Current

Monitoring:<50uA   Alarm:1mA~10mA

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


If you need any help, please do not hesitate to contact us by Email, we are sure that you will get our response as soon as possible.


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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