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Mini Photocell (Light Sensor) SKU: 1138
HC-SR501 PIR Motion Sensor SKU: 2327
Infrared (IR) Emitters and Detectors Set SKU: 0454
Infrared Sensor Module (TCRT5000) with Adjustable Reference SKU: 2082
Sharp Infrared Short-Range Proximity Sensor (Analog 4-30cm) SKU: 1124
Pololu Time-of-Flight Distance Sensor Carrier with Voltage Regulator (VL53L0X, 200cm Max) SKU: 2328
37 Sensors Kit V2.0 (great for Arduino or Raspberry Pi) SKU: 2871
Pololu QTR-1A Infrared Reflectance Sensor (2-Pack) SKU: 1762
Infrared (IR) Detector (3mm) SKU: 1093
Pololu Digital Distance Sensor Carrier (GP2Y0D810Z0F Digital 10cm) SKU: 0649
Sharp Infrared Long-Range Proximity Sensor (Analog 20-150cm) SKU: 0350
Infrared Sensor Module (TCRT5000) SKU: 2083
Infrared (IR) Emitter (3mm) SKU: 1094
Sharp Infrared Medium-Range Proximity Sensor (Analog 10-80cm) SKU: 0349
Photocell Module SKU: 1748
PIR Motion Sensor (JST) SKU: 1665
Light to Frequency Converter / Digital Light Intensity Sensor (TSL235R) SKU: 0743
SparkFun Light Sensor (TEMT6000 Analog) Breakout Board SKU: 0539
Mini PIR Motion Sensor (HC-SR505) SKU: 2172
Sharp Infrared Exra-Long-Range Proximity Sensor (Analog 100-500cm) SKU: 1758
SparkFun RedBot Sensor - Line Follower SKU: 1649
SparkFun RGB and Gesture Sensor (APDS-9960) SKU: 1474
Photodiode Sensor Module SKU: 2265
Pololu QTR-1RC Infrared Reflectance Sensor (2-Pack) SKU: 1129