10pcs Lens for Pyroelectric Sensors Please allow 4-6 days processing before ship out. For gearmotors or similar motors, we don’t ship using epacket and will use regular shipping if needed. Please note that regular shipping like singapore post might take 45-60 days to deliver, epacket 20 -35 days to deliver Thank you for understanding. » Sensors » Other Sensors » 10pcs Lens for Pyroelectric Sensors This lens is for pyroelectric sensors which is used to detect presence of a person. SKU: CQY2859618191 Price: 1.01 $ Product in stock SSL Certificate Quantity Updating cart... This lens is mounted in pyroelectric sensor which can be used in person detection. Specifications Circumference: 23 mm to 24 mm Weight: 1 g Related Products DHT11 Temperature and Humidity Module GP2Y0A02YK0F 20-150 cm Infrared Distance Sensor NTC Thermistor Probe with Wire 10pcs HDX-2 Vibration Sensor 20W LED with Color Temperature of 4000-4500 K