# Ultrasonic Level Sensor Milesight EM400-MUD NB-IoT for Distance/Level 3–450 cm IP67

**URL:** https://aio.lv/en/product--milesight-em400-mud-n03gl-pn-b045-2--12043507
**Data updated:** 2026-03-12 19:25 (EET)
**Category:** Smart Sensors
**Manufacturer:** Milesight
**Manufacturer code:** EM400-MUD-N03GL PN B045-2
**EAN:** 6975800197509
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 186.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 154.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--milesight-em400-mud-n03gl-pn-b045-2--12043507

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Milesight EM400-MUD is an ultrasonic NB‑IoT sensor designed for non‑contact measurement of level and distance in the range 3–450 cm. Weatherproof IP67 enclosure enables deployment on bins, parking areas, channels, manholes and tanks. The device provides reliable distance sensing for waste management, site monitoring and liquid/solid level detection where remote NB‑IoT connectivity is required.

## Long description

Milesight EM400-MUD NB‑IoT Ultrasonic Level Sensor is a non-contact distance and level measurement device that operates across a range of 3–450 cm. The sensor uses ultrasonic pulses to detect the distance to surfaces and targets, delivering reliable readings for liquid and solid levels. Housed in a weatherproof IP67 enclosure, the unit is built for outdoor installation on bins, tanks, manholes, parking barriers and open channels where remote NB‑IoT connectivity is required for telemetry and monitoring.
Advantages
The sensor provides accurate non-contact measurement without mechanical wear, reducing maintenance needs and minimizing the risk of contamination. Its IP67-rated housing protects electronics from dust and water ingress, enabling deployment in harsh outdoor environments. Integrated NB‑IoT communication ensures wide-area, low-power connectivity suitable for remote monitoring and long battery life. The measurement range of 3–450 cm covers typical short- to mid-range level and distance applications, while compact design simplifies mounting on a variety of structures.
Suitable for
 Waste bin and container level monitoring
 Liquid level measurement in tanks and manholes
 Distance sensing for parking and site access control
 Open channel and drainage monitoring
 Remote telemetry where NB‑IoT network coverage is available
Key specifications
 Measurement principle: ultrasonic time-of-flight
 Measurement range: 3–450 cm
 Enclosure protection: IP67 (dust-tight and temporary immersion protection)
 Communication: NB‑IoT wireless connectivity
 Power: low-power operation suitable for battery-powered installations
 Mounting: compact form factor for wall or fixture mounting
 Target types: applicable to liquid and solid surfaces for level/distance detection
How to use
Install the sensor above the measured surface ensuring the ultrasonic transducer has a clear path to the target without obstructions. Configure NB‑IoT network parameters and server endpoints according to your telemetry platform or IoT gateway instructions. Position the device at a height appropriate for the 3–450 cm measurement range and secure it using the recommended mounting hardware. Calibrate zero and maximum distances if required by your monitoring application, then verify readings through the connected platform before finalising installation.
Usage recommendations
For best performance, avoid mounting the sensor where heavy splashing, persistent foam or dense aerosols can obstruct the ultrasonic beam. Ensure NB‑IoT network coverage at the site and follow local regulations for outdoor electrical devices. Periodically inspect the transducer surface for debris and clean with a soft cloth to maintain measurement accuracy.

## FAQ

### How much does the Ultrasonic Level Sensor Milesight EM400-MUD NB‑IoT cost, and is it available for purchase?

The price is 186.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Ultrasonic Level Sensor Milesight EM400-MUD NB‑IoT be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Milesight products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Milesight service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12043507/67530367_large.webp