Window Door Sensor Wireless Guarding For 433MHz Home Security Detector Alarm System in Pakistan

AH35 Series Hall sensor is an analog signal outputs Hall IC, output voltage varies with the intensity of the magnetic field. The sensor chip has built-in reverse voltage protection, voltage regulators, temperature compensation circuit, Hall voltage generator, signal amplifier etc circuit uint. Excellent voltage regulator and temperature compensation circuit enable the sensor stable operation within a wide voltage range and temperature range, the reverse voltage protection circuit avoids the sensor being reverse voltage damage. AH3503 3503 TO-92UA Casing Linear Hall Effect Sensor

MQ-3 Alcohol Ethanol Gas Sensor Module For Arduino Sensitive for alcohol, ethanol Power requirements: 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off) Current Consumption: 150mA DO output: TTL digital 0 and 1 ( 0.1 and 5V) AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V Detecting Concentration: 0.05-10mg/L Alcohol Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR) Heater consumption: less than 750mW Operating temperature: 14 to 122 ?F (-10 to 50?C) Load resistance: 200k? Sensitivity S: Rs(in air)/Rs(0.4mg/L Alcohol)?5 Sensing Resistance Rs: 2K?-20K?(in 0.4mg/l alcohol) Dimensions: 32 x 22 x 16 mm