Specification Brand : cizihuu BulletPoint1 : module slot unobstructed, receiver tube conduction module DO output low, when blocked, DO output high; BulletPoint2 : DO output interface can be directly connected to the microcontroller IO port, whether the sensor with barriers, such as the motor speed can be detected with the motor encoder. BulletPoint3 : DO module can be connected to relays, limit switches and other functional composition, and to be connected with active buzzer module, consisting of alarm. BulletPoint4 : a fixed bolt holes for easy installation BulletPoint5 : 140 dB, common mode rejection ratio (CMRR) and 36 V common-mode voltage (CMV) within the scope of work to ensure minimal or no changes of offset voltage, which can simplify the error analysis Color : Module with Terminal ConnectorType : Screw GpsrSafetyAttestation : 1 ItemName : 10pcs LM393 15mA 3.3-5.5V 4 PIN Infrared Speed Sensor Module ItemTypeKeyword : sensor-blocks Manufacturer : cizihuu Material : Copper ModelNumber : CJMCU 101 MountingType : PCB Mount PartNumber : 3C3QjAIGecX ProductDescription : Origin:CN(Origin) Material:Mixture Type:Acceleration Sensor slot width 5mm. the working voltage of 3.3V-5V the output format: digital switching output (0 and 1) small PCB board size: 3.2cm×1.4cm using a wide voltage comparator LM393 Product wiring instructions: VCC positive power supply 3.3-5V GND power supply is negative DO TTL switching signal output AO this module does not work ProductSiteLaunchDate : 2021-11-15T10:23:10.454Z SpecificUsesForProduct : Speed SportType : Shooting Style : Modern UnspscCode : 25170000 Voltage : 36 volts