--- product_id: 210555214 title: "Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM)" price: "฿3837" currency: THB in_stock: true reviews_count: 4 url: https://www.desertcart.co.th/products/210555214-taidacent-waterproof-ultra-precision-ultrasonic-sensor-presence-and-detection-parking store_origin: TH region: Thailand --- # Waterproof design for outdoor use Ultra-precision detection with 3cm blind zone PWM output for seamless Arduino integration Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) **Price:** ฿3837 **Availability:** ✅ In Stock ## Summary > 🚗 Detect with precision, dominate your smart space! ## Quick Answers - **What is this?** Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - **How much does it cost?** ฿3837 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/210555214-taidacent-waterproof-ultra-precision-ultrasonic-sensor-presence-and-detection-parking) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pinpoint Accuracy:** Ultra-precision ultrasonic sensing with a minimal 3cm blind zone ensures flawless detection in tight spaces. - • **Stable & Intelligent:** Built-in intelligent algorithm and stable circuit design deliver consistent, reliable data output every time. - • **Versatile Applications:** Ideal for parking occupancy, robot obstacle avoidance, smart trash detection, and smart home automation. - • **Plug & Play Compatibility:** PWM output perfectly pairs with Arduino 'ping' sketch for effortless integration into smart projects. - • **Reliable Outdoor Performance:** Engineered with a closed split waterproof probe to withstand harsh, wet environments without missing a beat. ## Overview The Taidacent Waterproof Ultra-Precision Ultrasonic Sensor is a compact, rugged device designed for accurate presence and distance detection in outdoor and harsh environments. Featuring a waterproof probe, a minimal 3cm blind zone, and PWM output, it integrates smoothly with Arduino platforms for applications like parking occupancy, robotics, and smart home systems. ## Description Product description Product description and advantages Ultrasonic distance sensor module of TD-A02-V2.0 is a high performance, and designed by using a enclosed type and splinched waterproof probe, which has a certain dust waterproof level, suitable for the wet and poor measurement occasions. smaller blind zone distance of 3cm apply to different detection conditions，simple operation and they are the commercial grade module with high-performance and high reliability. Advantages Smaller blind Strong anti-interference; Data output, stable and reliable; Minimize power consumption Fast response time; Strong antistatic Wide working temperature; High measurement accuracy; Parameter Application Level distance measurement Parking management system Robot obstacle avoidance , automatic control; Detect the objects close to and the existence of external objects; Output pin definition and PWM output format 1, VCC, Power input lead 2, GND, Power ground lead 3, RX, Trigger input lead (1) 4, TX, PWM output lead (1) Remark:(1)The function of lead and pin corresponds to the output mode of product model one by one, and cannot coexist with other output modes. PWM output format When the trigger input lead "RX" receives a trigger pulse with a falling edge, the falling edge will trigger the module to work once, and the output lead "TX" will output a PWM high-level pulse width signal of TTL level, and the trigger cycle of the module must be greater than 70ms. If the module does not detect an object, the output lead "TX" will output a fixed pulse width of about 35ms. In PWM output mode, the module is in standby mode, and the watchdog will be activated once every 2 seconds; when RX lead receives the falling edge pulse for less than 2 seconds, the watchdog will not be activated in standby mode. Sequence diagram Computer mode Formula: S = t * V / 2 (s is the distance value, t is the PWM high level pulse width time, V is the sound propagation speed in the air). At room temperature, the sound velocity V is 348m / s, and the simplified formula s = t / 57.5 (at this time, the distance s unit is cm, and the time t unit is microsecond). For example: when the PWM high level pulse width time T3 of the output lead "TX" is 10000us. S = t / 57.5 = 10000 / 57.5 ≈ 173.9 (CM), indicating that the current measured distance is 173.9 cm. The effective detection range （1）The tested object is the white cylindrical tube, material is PVC, height is 1000mm, diameter is 75mm. （2）The tested object is the corrugated case, perpendicular to 0°axle wire, length is 60cm, width is 50cm. Review: Waterproof Ultronic Sonic Sensor great for Hydroponic tank measurement - Use Arduino "ping" sketch. - Lacking is English instructions, yet with only four wires simple to figure out. Sensor is PWM output well suited for using the basic Arduino "ping" sketch to monitor and serial monitor to output reading. Bench testing checks out with sensor reading water level in 5 gal Home Depot Orange bucket. Sensor mounted on removal cover with two holes cut in cover so sensor can see inside water level. Sensor will be integrated into garden system monitoring tank water level. Best sensor found so far at this price/value point. Review: Won't last long - Purchased three of these. All of them were the exact setup using an Arduino Uno and the new ping library. They work perfect and nice and stable for a while and then fail. First one lasted 4 months. The second and third lasted less then 24 hours. NOT waterproof. The rubber seals around the transducers don't seal properly. So basically there worthless. ## Features - A high performance ranging module designed with a closed split waterproof probe. - It has a certain level of dust and water resistance, suitable for wet and harsh measurement occasions. - Application :Robot obstacle avoidance,Smart Trash Detection,Parking space detection,Smart home - Built-in intelligent algorithm, stable circuit design and stable and reliable data output. - The 3cm small blind zone is suitable for different detection conditions. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #162,576 in Electronics ( See Top 100 in Electronics ) #577 in Motion Detectors (Electronics) | | Customer Reviews | 3.0 out of 5 stars 10 Reviews | ## Images ![Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - Image 1](https://m.media-amazon.com/images/I/51YVtvpdvcL.jpg) ![Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - Image 2](https://m.media-amazon.com/images/I/51g9XyV6l3L.jpg) ![Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - Image 3](https://m.media-amazon.com/images/I/515oEnxAPHL.jpg) ![Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - Image 4](https://m.media-amazon.com/images/I/51FAZOi3ffL.jpg) ![Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - Image 5](https://m.media-amazon.com/images/I/514sCJjjdtL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does it have an example code for use with a raspberry pi zero w or with an esp32 ?** A: If by "it" you mean does the device come with sample code? The answer is "No". But there is a huge volume of info on YouTube and on the internet. Just google either SR 04 sensor or the part number of this one. Hope that helped. **Q: Is this an automatic or controlled version?** A: If you're asking whether the device will transmit and receive at regular intervals the answer is no. The device requires a 10us wide active LOW pulse (I send a 50us wide pulse just to be safe). Then the device will return a pulse whose width is proportional to the distance measured. There are a number of different C++ functions that will perform this for you: Pin() and newPin() are two that come to mind. Google them for more info. Hope that helped. **Q: Can I use with esp8266? And which one pwm or uart?** A: Short answer: Yes you can. And you can use either version depending on what you're trying to do. One version just runs continuously, while the other requires that (in your case) the ESP8266 output a 10us minimal active LOW trigger pulse. That pulse tells the device to send an ultrasonic burst toward the target. The device then switches to "Receive" mode and waits for an echo back from the target. The pulse width of the echo pulse is proportional to the distance from the target. There is an enormous volume of information on the subject on the internet. Hope that helped. **Q: Is there a sample code for use with Raspberry Pi Zero???** A: Yes--assuming that you have an ANSI C compiler (and I imagine that you do) there is a huge volume of info on YouTube, as well as on various forums. The only difference is that this device requires an active LOW trigger pulse of 10us minimum pulse width. Hope that helped. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Waterproof Ultronic Sonic Sensor great for Hydroponic tank measurement - Use Arduino "ping" sketch. *by A***A on August 21, 2020* Lacking is English instructions, yet with only four wires simple to figure out. Sensor is PWM output well suited for using the basic Arduino "ping" sketch to monitor and serial monitor to output reading. Bench testing checks out with sensor reading water level in 5 gal Home Depot Orange bucket. Sensor mounted on removal cover with two holes cut in cover so sensor can see inside water level. Sensor will be integrated into garden system monitoring tank water level. Best sensor found so far at this price/value point. ### ⭐ Won't last long *by M***N on May 22, 2021* Purchased three of these. All of them were the exact setup using an Arduino Uno and the new ping library. They work perfect and nice and stable for a while and then fail. First one lasted 4 months. The second and third lasted less then 24 hours. NOT waterproof. The rubber seals around the transducers don't seal properly. So basically there worthless. ### ⭐ Connector not included *by A***X on February 25, 2022* JST connector not included. Find this on another site, not amazon ## Frequently Bought Together - Taidacent Waterproof Ultra-Precision Ultrasonic Sensor Presence and Detection Parking Occupancy Sensor Vehicle Presence Detector Ultrasonic Range Detector in Outdoor (PWM) - EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/210555214-taidacent-waterproof-ultra-precision-ultrasonic-sensor-presence-and-detection-parking](https://www.desertcart.co.th/products/210555214-taidacent-waterproof-ultra-precision-ultrasonic-sensor-presence-and-detection-parking) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-04*