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Features:
- pir sensor module can accurately detect any moving objects (e.g. human body) within the detective range and will send out signals of high level for a certain time. pir sensor module has higher sensitivity and broader detective range than others.
- Completely automatic induction: once a person enters into the detective range, the output is high level. While the person is out of the detective range, pir motion sensor module will prolong automatically 20 seconds of retention time then the high level output will be shifted to the low level output.
- Triggering method: repeated triggering, which means that it will take the last triggering time as the starting point, within 20 seconds of the high level output, if there’s still human beings activities within it’s detective zone, the output will be maintained in the high level until the person’s leave.
- Then afterwards, a retention time of 20 seconds will be initiated.
- Broad working voltage, low power consumption.
- High level signal output, easy to be jointed with different types of circuits.
- pir motion detector module is widely accepted and has been applied for movement detection, automatic control, proximity switch, electronic theft prevention, safety protection, remote control measurement.

Specifications:
- Operating temperature range: -20℃~+70℃
- Working voltage: DC 5V~9V
- Working current: 5mA
- Static current: <50uA
- Output high voltage: 4V
- Retention time of high level output: 20 seconds
- Detective range: 2~3m (Normal)
- Detective angle: <140°
- Triggering method: repeated triggering
- Dimensions: 27mm × 12mm × 12mm
- Weight: 2g / 0.07oz

pir sensor module

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PR

Features:
- Safety battery back up siren make sure your electrical device is safe,electric siren will alarm when some on cut off the power
- The red and black cable for recharge the battery, red one connect anode, black one connect cathode
- White and blue cable for connect the device power, white one connect anode, blue one connect cathode, if the key switch on the ON position, electronic siren will alarm just the power is cut off
- Metal Stand design can be install on the wall
- Ideal for PC, TV and other electrical device safety use, should be use a AC to DC voltage convertor if the power is AC 110 or 220V

Specifications:
- Product Name: Battery Back Up Siren
- Use for: Electrical Items Alarm
- Material: Plastic, Electrical Parts
- Rated Voltage: DC 12V
- Work Voltage: DC 7-13V
- Power: 20W
- DB/M: 105db
- Battery Type: Nickel-cadmium 6V 600mAh
- Cable length:38cm
- Color: Black
- Size: 7.5 x 6.5 x 8cm/ 3 x 2.6 x 3.15 inch(L*W*H)
- Net Weight: 274g


Features:
- Air Erasable Pen/Auto Vanishing Pen/Disappearing Ink Pen/Magic Pen
- Non-toxic, harmless and pollution-free
- Vanishing Pen lead color: Blue, neutral and replaceable
- Able to doodle on paper, clothes, sheet, furniture, wall and any other smooth surface
- The handwriting disappears without any mark within 4-24 hours. Higher the temperature, more quickly magic ballpoint pen disappears
- Green plastics are taken for the penholder and cap,while bonded fiber for the head
-  As advanced water decomposition technology is adopted, our pen is non-toxic,harmless and pollution-free

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