--- product_id: 168186384 title: "HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set" brand: "hiletgo" price: "€ 19.58" currency: EUR in_stock: true category: "Hi Letgo" url: https://www.desertcart.hr/products/168186384-hiletgo-20pcs-tct40-16r-t-16mm-split-ultrasonic-sensor-ultrasonic store_origin: HR region: Croatia --- # ≥-75dB receiver sensitivity 40KHz precision frequency ≥110dB emission sound pressure HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set **Brand:** hiletgo **Price:** € 19.58 **Availability:** ✅ In Stock ## Summary > 📡 Elevate your sensing game with precision and power! ## Quick Answers - **What is this?** HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set by hiletgo - **How much does it cost?** € 19.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/168186384-hiletgo-20pcs-tct40-16r-t-16mm-split-ultrasonic-sensor-ultrasonic) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sensitive Receiver:** Captures faint echoes with ≥-75dB sensitivity, ensuring pinpoint accuracy. - • **Compact 16mm Design:** Space-saving probes perfect for sleek, professional sensor setups. - • **High Emission Power:** Delivers powerful ≥110dB sound pressure for reliable signal clarity. - • **Complete 20-Piece Set:** Includes 10 transmitters + 10 receivers for seamless integration and scalability. - • **Precision 40KHz Frequency:** Engineered for ultra-accurate ultrasonic detection and transmission. ## Overview The HiLetgo 20pcs TCT40-16R/T Ultrasonic Sensor Set features 40KHz nominal frequency with high emission sound pressure (≥110dB) and sensitive receivers (≥-75dB). This 16mm split transceiver kit includes 10 transmitters and 10 receivers, designed for precise ultrasonic detection in industrial and scientific applications. ## Description HiLetgo 10 Pairs 16mm Split Ultrasonic Transceiver Ultrasonic Sensor Probe Description: Nominal frequency (KHz): 40KHz Emission sound pressure at10V (0dB = 0.02mPa): ≥110dB Receiver sensitivity at40KHz (0dB = V / ubar): ≥-75dB Capacitance at1KHz, <1V (PF): 1800 ± 30% The part with T is the Transmitter; the part with R is Receiver. Package Includes: 10* Ultrasonic Transmitters Probes 10* Ultrasonic Receivers Probes ## Features - Nominal frequency (KHz): 40KHz - Emission sound pressure at10V (0dB = 0.02mPa): ≥110dB - Receiver sensitivity at40KHz (0dB = V / ubar): ≥-75dB - Capacitance at1KHz, <1V (PF): 800 ± 30% - The part with T is the Transmitter; the part with R is Receiver ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00M2GHG66 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #118,815 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #17 in Ultrasonic Proximity Sensors | | Customer Reviews | 4.6 4.6 out of 5 stars (74) | | Date First Available | July 24, 2014 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 0.634 ounces | | Item model number | 3-01-0622 | | Manufacturer | HiLetgo | | Package Dimensions | 3.78 x 3.07 x 1.26 inches | | Part Number | 3-01-0622 | ## Images ![HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set - Image 1](https://m.media-amazon.com/images/I/61YDTkEHdhL.jpg) ![HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set - Image 2](https://m.media-amazon.com/images/I/5181B-jwHeL.jpg) ![HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set - Image 3](https://m.media-amazon.com/images/I/31N+B1+IkaL.jpg) ![HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set - Image 4](https://m.media-amazon.com/images/I/31CxJhOXBdL.jpg) ![HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set - Image 5](https://m.media-amazon.com/images/I/31akGsfR2gL.jpg) ## Questions & Answers **Q: can the receivers be used as transmiters? I only need transmitters.** A: No, the receivers are marked with R and transmitters with T. You could experiment and see. If you don't want to experiment, assume they are not the same and you must use R for receiver and T for a transmitter. **Q: Do these do their own tone generation/demodulation? Or are they effectively high-frequency speakers/mics and an external circuit does the processing?** A: They are effectively a high frequency speaker/mic **Q: Can you use this to measure flow rate in a pressurized water pipe? How about gas?** A: Most likely for water. For gas, it would depend on the gas density, and the sensitivity of your circuit. I was able to get some pretty precise nodes in my setup for other things, so provided you know the math needed to calibrate the system, it should get job done. Are you trying to measure the speed using flight time or doppler? **Q: How weatherproof are they?** A: These ones are not waterproof. ## Frequently Bought Together - HiLetgo 20pcs TCT40-16R/T 16mm Split Ultrasonic Sensor Ultrasonic Transceiver Probe 10 Transmitters + 10 Receivers T+R Ultrasonic Sensor Set - 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 - HiLetgo 4pcs Ultrasonic Sensor Integrated Transceiver Waterproof Diameter 16MM --- ## 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.hr/products/168186384-hiletgo-20pcs-tct40-16r-t-16mm-split-ultrasonic-sensor-ultrasonic](https://www.desertcart.hr/products/168186384-hiletgo-20pcs-tct40-16r-t-16mm-split-ultrasonic-sensor-ultrasonic) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-24*