The Dragino LDDS04 LoRaWAN 4-Channels Distance Detection Sensor (EU868) is an advanced device designed for Internet of Things applications, capable of integrating up to four ultrasonic sensors to simultaneously measure multiple distances. This sensor is versatile, suitable for various scenarios including horizontal distance measurement, liquid level monitoring, parking management, object proximity and presence detection, intelligent waste management, robotic obstacle avoidance, automatic control systems, and sewer water level monitoring. It functions by detecting the distance between the sensor and the target object, transmitting this data wirelessly to a LoRaWAN IoT server.
Utilizing LoRa wireless technology, the LDDS04 ensures data transmission over extensive ranges with low data rates, offering ultra-long range spread spectrum communication and high resistance to interference while maintaining minimal power consumption. The device is powered by a robust 8500 mAh Li-SOCI2 battery, engineered for longevity with a potential operational lifespan of up to ten years. Each unit is pre-configured with unique keys for seamless LoRaWAN registration, enabling automatic network connection upon activation, provided there is network coverage.
If you are not satisfied for whatever reason with a Product you bought on the Site, it is possible to return it for refund within 30 days from the date you received it unless otherwise indicated in the Product listing. You must first advise the Vendor associated with your order in your account to obtain a return authorization (‘’RA’’) number before returning a Product. (‘’RA’’) numbers are valid for 30 days, within which time the returned Products should be received by the Vendor. No returns will be accepted without having previously obtained an (‘’RA’’) number. The Product must then be returned in its original packaging (in perfect condition for resale) with its receipt and your (‘’RA’’) number. Reimbursement will be denied for any Products which do not conform to the above mentioned conditions.
Build-it-yourself Robot Parts are not refundable once assembled. Robots & Kits requiring assembly or soldering are also not refundable once assembled, soldered or modified in any way. All sales of robotic software and apps are final and cannot be refunded or exchanged. Returns are not accepted on special orders and clearance items except when they are found defective, in which case the Product may be repaired or replaced at the Vendor’s discretion. 20% Restocking fees may apply if you are returning a large quantity of the same Product that was ordered specifically for you from the manufacturer.
Please note that all items will be reimbursed within 7 to 14 days of receiving the Product (shipping fees excluded). You must also cover the cost of returning the Product. Shipping fees will only be refunded if the return is a result of a shipping error on our part. Cleaning fees of USD 100 may also be charged if a domestic robot is returned and has not been properly cleaned.
