10 Years Battery Operated Standalone Heat Detector for Home

• Type: Smoke Detectors
• Anti-theft Alarm System Approach: Sound & LED
• Anti-Theft Alarm System Type: Smoke Alarms
• Anti-Theft Alarm System-Wide: Wire Alarm Detectors
• Types of Smoke Detectors: Heat
• Transport Package: 100PCS
• Model NO.: HK21
• Trademark: Sentek
• Origin: China
• Production Capacity: 1000000

Product Description

HK-21 is a micro, low quiescent current consumption of household heat  alarm. This product operated by 3v lithium battery, service life can up to 10 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.

Specification: 

Products Name	Battery Operated Standalone Heat Detector For Home
Model	HK-21
Operating principle	NTE thermistor
Power	3V (built-in lithium battery)
Sound volume	≥ 85 dB at a distance of 3 meters
Quiescent current	< 5uA @2.7V
Alarm current	< 150mA
Static response temperature	Calss 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

Features

• Rapid response and high precision NTC thermistors.
• Built-in 10 years lithium battery - no batte ry 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,
sile nce 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.
• Conform to the standard: BS5446-2:2003.
• The operation mode: Normal mode, Alarm mode, Test mode, Silence
mode, Low battery, 8 hours of low battery silence mode.