Measures fill level distance
Measures fill level distance.

ToF Laser Distance Sensor
The EM400-TLD is a ToF Laser Distance Sensor. The NB-IoT/Cat.M version provides cellular connectivity and allows integration with standard IoT platforms, with GNSS support for location tracking.
Dispatch and lead time are confirmed in the quote.
Manufacturer warranty24 months
Overview
The EM400-TLD is designed to monitor the fill level and status of small waste bins and containers. It uses a ToF (time-of-flight) distance sensor to measure how full a container is, helping operators plan timely collection. This reduces overflow and improves daily waste handling efficiency.
The device supports two communication options to suit different deployments. The LoRaWAN version enables long-range, low-power communication, making it ideal for large outdoor areas. The NB-IoT/Cat.M version provides cellular connectivity and allows integration with standard IoT platforms, with GNSS support for location tracking.
The sensor continuously tracks fill levels within a 2–350 cm range, allowing accurate monitoring even in small bins. A built-in 3-axis accelerometer detects tilt or movement, helping identify if a container has been tipped over or disturbed. It also includes an NTC temperature sensor to detect abnormal heat, such as potential trash burning, adding an extra layer of safety.
The device is built for long-term outdoor use. With an IP67-rated enclosure and internal damp-proof coating, it can operate reliably in harsh weather conditions. It runs on dual 9000 mAh batteries that can last up to around 10 years depending on reporting intervals, reducing maintenance needs.
Configuration is simple using NFC, allowing quick setup via a mobile app without complex wiring or tools. The device also supports remote management, enabling users to monitor data and adjust settings without needing physical access. This makes it practical for large-scale deployments across multiple locations.
Measures fill level distance.
Detects container tilt status.
Monitors trash burning temperature.
Enables remote data monitoring.
Supports long-range wireless communication.
IP67 waterproof enclosure.
–30°C to +70°C operating range.
Dual 9000 mAh replaceable batteries.
Technical data
| LoRaWAN® Version | |
|---|---|
| Frequency | CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
| Tx Power | 16 dBm (868 MHz)/20 dBm (915MHz)/19 dBm (470MHz) |
| Sensitivity | -137dBm @300bps |
| Mode | OTAA/ABP Class A |
| NB-IoT/Cat M Version | |
| Cellular Band | Cat M1: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85 Cat NB2: B1/B2/B3/B4/B5/B8/ B12/B13/B18/B19/B20/B25/B28/B66/B71/B85 |
| SIM Slot | 1 (Micro SIM-3FF), 1.8V |
| Application Mode | TCP/UDP/MQTT/AWS |
| Distance | |
| ToF FoV | 27° |
| Detection Range | 2 ~ 350 cm |
| Detection Accuracy | ±2 cm (- 20 °C ~ 70 °C) |
| Detection Resolution | 1 mm |
| Temperature | |
| Range | -40 ~ 125 °C |
| Resolution | 0.1 °C |
| GNSS Positioning (NB-IoT/Cat M Version Only) | |
| Parameters | Longitude/Latitude |
| Resolution | 0.000001 |
| Others | |
| LED | 1 × LED Indicator (Internal) |
| Button | 1 × Power/Reset Button (Internal) |
| Software | |
| Power On & Off | NFC, Power Button (Internal) |
| Configuration | Mobile App (via NFC), Downlink |
| Physical Characteristics | |
| Power Supply | 2 x 9000 mAh ER26500 Li-SOCL2 Batteries |
| Battery Life | LoRaWAN® Version: Standard mode: Around 10 years (10 min interval, 25 °C) Bin mode: Around 10 years (20 min interval, 25 °C) NB-IoT/Cat.M Version: LoRaWAN® Version: > 10 years (10-min Interval, 25 °C) TCP/UDP–Around 10 Years, MQTT/AWS–Around 5 Years (4 Times Report per Day, per Report Includes 12 Packages with 30-min Collection Interval, 25 °C) |
| Operating Temperature | - 30 °C ~ 70 °C |
| Relative Humidity | ≤95% (non-condensing) |
| Ingress Protection | IP67 |
| Dimension | 118 × 65 × 30 mm |
| Housing & Colour | ABS + PC (UL94 V0), Black grey |
| Weight | 208.3g (Batteries included) |
| Installation | On the Flat Surfaces with Screws |
| Approvals | |
| Regulatory | CE, FCC |
| Environmental | RoHS |
No specification rows match the filter.
Compliance
Approvals listed for the Milesight EM400-TLD.
Applications
The device is ideal for smart waste systems where real-time fill level monitoring helps optimise collection routes. By knowing exactly when bins are full, operators can reduce unnecessary pickups and improve service efficiency.
Cities and municipalities can use the sensor across public trash bins to maintain cleaner streets. Tilt detection and temperature monitoring also help identify vandalism or safety risks in public areas.
The built-in temperature sensor allows early detection of fire risks inside containers. This supports safer waste handling, especially in areas where improper disposal could lead to hazards.
Service providers can monitor distributed waste containers across multiple locations. Long battery life and remote communication reduce the need for frequent site visits, improving operational efficiency.
Shopping centres, campuses, and office complexes can use the sensor to maintain clean environments. Automated monitoring ensures waste is managed proactively without relying on manual checks.
Documentation
Questions
LoRaWAN® Version: Standard, according to the specification.
IP67, according to the specification.
+30 … +70 °C, according to the specification.
2 ~ 350 cm, according to the specification.
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Manufacturer warranty24 months
Europe & United Kingdom
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