2Pcs Jsn-Sr04T Ultrasonic Distance Measuring Module Jsn-Sr04T-V3.0 21~600Cm 3Mm Product Details JSN-SR04T-V3.0 ultrasonic ranging module can provide a non-contact distance sensing function of 21cm-600cm, and the ranging accuracy can reach up to 3mm This product adopts industrial-grade integrated ultrasonic probe design, waterproof type, Can be used in humid and harsh environment?stable performance. JSN-SR04T-V3.0 is updated to version 3.0, which solves the problem of blind spot data beating and improves the stability of the product. The module consists of an ultrasonic sensor and a control circuit that includes a transceiver, compatible with all MCU work in the market. DC3.0-5.5V power supply range is wide, low power consumption, 6 working modes are available for customers to choose from Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.