Milesight EM300-MLD Membrane Leakage Detection Sensor
Authorised Milesight UK Distributor£62.85 ex VAT (£75.42 inc. VAT)
The Milesight EM300-MLD-868M is a LoRaWAN leak sensor that detects conductive liquid across a 400 × 400 × 0.25 mm printed membrane rather than at a single point, alarming once the soaked length exceeds 1.5 cm. Rated IP67 with a 1 m cable to the film, it runs up to 10 years at SF7 on one 4000 mAh replaceable battery.
Trigger media (detection membrane)400 × 400 × 0.25 mm printed leakage-detecting film (size customisable)
In stock · typically dispatched within 14 working days from the UK
● Quotes answered within one working day · UK support
Delivery & assurance
- Ships from the UK
- £14.25 flat UK delivery
- Secure checkout — card, Klarna, invoice
- Manufacturer's warranty
Questions about this product? Call our UK team: 023 9223 3611
Description
The EM300-MLD is an innovative leak sensor that incorporates a flexible printed membrane. This design enables precise detection and customized coverage in a compact form factor, making it suitable for various applications.
With a single embedded battery, EM300-MLD offers a long operational life of up to 10 years, extendable to two batteries if desired. Its high IP67 protection and durable construction ensure reliability and adaptability in harsh environments.
With easy configuration and wireless detection, the EM300-MLD facilitates simple deployment and connectivity. Compliant with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can monitor the leakage and receive alarms easily via webpage or mobile App remotely.
• Features
• Detect the presence of liquids by a flexible printed membrane for covering a larger area
• Equip with high-quality printed membrane that can be reused and customized
• Adopt green material with 100% reusability and cause no dangerous emissions
• IP67 waterproof and UV-resistant enclosure for harsh environment applications
• Built-in 4000 mAh replaceable battery and work up to 10 years without replacement
• Store locally 1000 historical records and support retransmission to prevent data loss
• Support Milesight D2D protocol to enable ultra-low latency and direct control without gateways
• Equipped with NFC for easy configuration
• Compliant with standard LoRaWAN
® gateways and network servers
• Quick and easy management with Milesight IoT Cloud solution
Measuring Range
Liquid Type: Conductive Liquid Trigger Media: 400 * 400 * 0.25 mm
Printed Leakage-Detecting Film (Customizable)
Trigger Condition:
Soaking Liquid Length > 1.5 cm
Additional information
| Weight | 0.14 kg |
|---|
EM300-MLD-868M specifications
| Trigger Media | 400 × 400 × 0.25 mm printed leakage-detecting film (size customisable) |
|---|---|
| Trigger Condition | Soaking liquid length > 1.5 cm |
| Liquid Type | Conductive liquid (water, weak acid, weak base, etc.) |
| Cable Length | 1000 mm (customisable) |
| Technology | LoRaWAN®, Milesight D2D |
| Frequency | CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
| Tx Power | 16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz) |
| Sensitivity | -137 dBm @300bps |
| Mode | OTAA/ABP Class A |
| Antenna | Internal antenna |
| Power Supply | 1 × 4000 mAh ER18505 Li-SOCl2 battery (8000 mAh version optional) |
| Battery Life (one hour leakage per day, 25°C) | Around 10 years (SF7, EU868 & US915); around 5.3 years (SF10, EU868) |
| Operating Temperature | -30°C~70°C |
| Relative Humidity | 0% to 95% (non-condensing) |
| Ingress Protection | IP67 |
| Dimensions | 105.6 × 85.3 × 27 mm (4.16 × 3.36 × 1.06 in) |
| Weight | 142 g (with 1 battery) |
| Colour & Material | White, ABS + PC (flame retardant) |
| Installation | Transceiver: wall screw, 3M tape or cable-tie mounting; film: 3M tape mounting |
| Configuration | NFC via mobile app, downlink |
| Advanced Features | Water leakage alarm, Milesight D2D controller, data storage (1,000 entries), data retransmission, data retrievability |
| Approvals | CE, FCC, ISED |
Specifications taken from the manufacturer datasheet.
Which version do I need?
The -868M part number is the 868 MHz build. The datasheet lists EU868 among the supported frequency plans and quotes 16 dBm Tx power at 868 MHz. UK LoRaWAN uses EU868, so -868M is the correct UK variant. The datasheet also documents an optional 8000 mAh battery version and states the membrane size and cable length are customisable.
Typical applications for the EM300-MLD-868M
- Server room and data centre floor leak detection
- Warehouse floor leak detection
- Equipment cabinet leak detection
- Workshop and plant room spill detection
- Under-pipework and under-tank leak coverage
Buying guides for this product
Frequency band
Supplied on EU868, the LoRaWAN band used in the UK and across Europe. That is the default and you do not need to ask for it — the -868M in the part number is the EU868 build.
The same EM300-MLD-868M unit also covers IN865 and RU864. Those bands share the 863–870 MHz radio with EU868, so one device can be set to any of them in its own configuration — no different part number needed.
CN470, US915, AU915, KR920 and AS923 are a different radio and therefore a different build. Milesight makes them and we can order them: tell us where the devices are being deployed and we will confirm the part number, price and lead time.
Not sure which band applies where? The Things Network publishes the LoRaWAN frequency plan for every country.
Complete the stack
Products that work with this one — connect it, power it, and get it online.
Which gateway do I need? Compare the Milesight range, from £98.76 →
-
Milesight UG63 Mini LoRaWAN® Gateway
UG63 Price range: £98.76 through £131.68 ex VAT (£118.51 – £158.02 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
Milesight UG56 Industrial LoRaWAN Gateway
UG56 Price range: £173.58 through £213.98 ex VAT (£208.30 – £256.78 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
Milesight Smart Building Occupancy Kit — Occupancy + Air Quality + Gateway
KIT-OCCUPANCY £531.21 ex VAT (£637.45 inc. VAT) -
Milesight SG50 Ultra Low Power Solar LoRaWAN® Gateway
SG50-868M Price range: £683.83 through £733.21 ex VAT (£820.60 – £879.85 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page
EM300-MLD-868M — frequently asked questions
How large an area does the membrane cover?
The standard printed leakage-detecting film is 400 × 400 × 0.25 mm, and the datasheet states the size can be customised.
How much liquid does it take to trigger an alarm?
The trigger condition is a soaking liquid length greater than 1.5 cm on the membrane.
What liquids will it detect?
Conductive liquids, including water, weak acids and weak bases.
How long does the battery last?
Around 10 years at SF7 on EU868/US915, or around 5.3 years at SF10 on EU868, tested at one hour of leakage per day at 25°C with the 4000 mAh ER18505 cell. An 8000 mAh version is optional.
How far can the film be from the transceiver?
The standard cable is 1000 mm and the datasheet states it is customisable. The film is fixed with 3M tape; the transceiver mounts by wall screw, 3M tape or cable tie.
How much does the Milesight EM300-MLD Membrane Leakage Detection Sensor cost in the UK?
The Milesight EM300-MLD Membrane Leakage Detection Sensor is £62.85 ex VAT from Indiott, a UK distributor. The price is published rather than quote-only, and we invoice with VAT (PSI Technologies Ltd, VAT GB 730 2340 83). UK delivery is a flat £14.25 per order ex VAT, whatever the weight.
What is the lead time and delivery cost for the Milesight EM300-MLD Membrane Leakage Detection Sensor?
The Milesight EM300-MLD Membrane Leakage Detection Sensor is in stock and typically dispatched within 14 working days from the UK. UK delivery is a flat £14.25 per order ex VAT, whatever the weight or how many items you order. We ship to GB and the EU and provide a VAT invoice with every order.
Related products
-
Milesight X1 Sensing Camera
X1 Price range: £62.85 through £104.74 ex VAT (£75.42 – £125.69 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page -
-
-
Milesight WS558 Smart Light Controller
WS558-868M £104.74 ex VAT (£125.69 inc. VAT)Select options This product has multiple variants. The options may be chosen on the product page