Hello. Welcome to Futurlec. The electronic components Superstore. To find the component your looking for, either search by Part Number or visit the relative department. Need Help. GAS SENSORS Gas New range of Gas Sensors, for detection of CO2, CO, LPG and Alcohol. Ideal for use in alarms, as breathalyser units and for general concentration meters. PIR SENSORS Passive Infrared Sensors Passive Infrared Sensors for use in alarm systems, doorbells, pet detection systems etc. Compact, inexpensive and easy to use. Great also for use in robots as personal sensors. TEMPERATURE SENSORS Temperature Digital Temperature and Humidity Sensor for accurate and easy to interface temperature measurements. Connects easily to a microcontroller for direct data transfer. ULTRASONIC SENSORS Ultrasonic New Ultrasonic Sensors, for a wide range of applications, including parking indication warnings, object detection for robots, alarm systems and much more. Long range and waterproof versions available for use in most environments.