Specifications:AD-033 Tracking Sensor IR TCRT5000 Infrared Obstacle Avoidance sensor for Arduino AVR PICWorking voltage: DC 3.3V-5VWorking current: ≥ 20mAOperating temperature: -10℃~+50℃Detection distance :2-40cmIO Interface: 4-wire interfaces (-/+/S/EN)Output signal: TTL level (low level there is an obstacle, no obstacle high)Adjustment: adjust multi-turn resistanceEffective angle: 35°IR Sensor : TCRT5000 also available on our siteAll pins are standard 0.1" spacedPin Connector to board : 3 PinsPart Number on LT: AD-033