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HK21 Stand Alone Battery Operated Mini Heat Detector Alarm

• Rapid response and high precision NTC thermistors.
• Built-in 10 years lithium battery – no battery changes for ever.
• Install simply and quickly using screws (included) or almost instantly with unique 3M VHB adhesive tape.
• Multi-function button: normal work test, silence alarm signal,silence low battery prompt tone.
• Silence function to silence false alarms and temporally desensitizing smoke alarm, just press and release at once.
• Alarm signal: Red light flashes, ‘beep’ prompt tone.
• The operation mode: Normal mode, Alarm mode, Test mode, Silence mode, Low battery, 8 hours of low battery silence mode.
• Conform to the standard: BS5446-2:2003.

  • HK-21
  • Sentek


HK-21 Series

Micro Heat Alarm HK-21

HK-21 is a micro, low quiescent current consumption of household heat alarm. This product operated by 3v lithium battery, service life can up to10 years.

HK-21 has a high precision thermal resistor that is sensitive to the change of environmental temperature. The product has test button, red light indicator and buzzer. The red light flashing and buzzer sound ‘beep

when detect the environment temperature is too high. The test button can silence the alarm signal for 11 minutes. During the period of silence the product will continue to monitor the environment temperature,

when the environment temperature continue to raise up to a higher level, the product will alarm again. HK-21 is low quiescent current consumption and real-time detect the battery power, if the battery is low, the product will give low battery signal to prompt customer to replace it and customer can press the test button to silence the low battery prompt tone.

Product Features

• Rapid response and high precision NTC thermistors.

• Built-in 10 years lithium battery – no battery changes for ever.

• Install simply and quickly using screws (included) or almost instantly with unique 3M VHB adhesive tape.

• Multi-function button: normal work test, silence alarm signal,silence low battery prompt tone.

• Silence function to silence false alarms and temporally desensitizing smoke alarm, just press and release at once.

• Alarm signal: Red light flashes, ‘beep’ prompt tone.

• The operation mode: Normal mode, Alarm mode, Test mode, Silence mode, Low battery, 8 hours of low battery silence mode.

• Conform to the standard: BS5446-2:2003.

Technical Information


Model 

HK-21-XX-YY-ZZ (*)

Operating principle  

NTE thermistor

Power 

3V (built-in lithium battery)

Warranty 

5 years limited

Sound volume  

≥ 85 dB at a distance of 3 meters

Quiescent current 

< 5uA @2.7V

Alarm current  

< 150mA

Static response temperature 

Class A1, 54°C - 65°C

Operation temperature 

0°C – 50°C

Maximum humidity 

93% RH non-condensing

Dimension  

50.8 mm dia. x 42.5 mm height

Weight 

54 g


(*) Model code XX represents color variation number

                         YY represents marking language

                         ZZ represents manual language


Available models


Model Code

Color Number (XX) 

Marking Language (YY)  User Manual (ZZ)
HK-21 01 White 

EN  English 

English 


Appearances


HK-21HK-21-1


Certificate


证书


download1

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CONTACT US

 +86 574 87155635, 87153117

 # 8108 or 8817

 +86 180-5855-7012

sales@sentek.cc , service@sentek.cc

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