Linear Light Sensor

Linear Light Sensor, we also call it photoresistor light sensor or
phototransistor. The chip integrated inside the ldr light sensor is very
sensitive to light changes. So normally it is used to detect the current
ambient light level and converts the light energy into an electrical signal
output.

Compared with traditional photoresistors, this kind of photosensitive
resistance sensor is more environment friendly and complied with ROHS
requirements. We can also make it to be SMD type with mini size. It is more and
more popular now.

FAQ
Is Wave Soldering Recommended?
Wave soldering is likely to cause degradation of product performance. Wave
soldering is not recommended. Generally we recommend to solder by hand.

Can PIR Sensor Detect Animals?
PIR sensors are excellent in human and animal detection. They are mostly used
in triggering an intruder alarm and activate household appliances upon the
presence of a human.

Do PIR Sensors Work Through Glass?
No, alarm motion sensors do not work through glass. Most motion sensors use
passive infrared (PIR) technology to detect motion. Changes in IR energy are
not easily detected through glass. This is why motion sensors will generally
not work through windows, which are usually insulated.

What Is The Package?
1. PIR sensor: Graphic Carton-> Carton
2. LDR: plastic bag -> Graphic Carton -> Carton
3. Fresnel Lens: plastic bag -> Carton

What are the Factors that Affect the Performance of the Product?
1. When there is dirt on the window, it will affect the detection performance.
2. When the ambient temperature and the human body temperature are close, the
detection and sensitivity are significantly reduced, sometimes causing short-
term failure. The recommended minimum temperature difference between the
ambient temperature and the human body temperature needs to reach at least 4 °
C.
3.When designing the circuit, pay attention to anti-interference measures to
prevent false alarms caused by radio frequency interference.

Among those pir sensor manufacturers, Senba Sensor has become the first owner
of this special technology enterprise in China.

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