Rapid response and high precision standalone Micro Heat Alarm with 10 Years Lithium Battery HK-21
Micro Heat Alarm with 10 Years Lithium Battery
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. 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 lowbattery prompt tone.
Specification:
| Model | HK-21-XX-YY-ZZ (*) |
| 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 |
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