Milesight EM320-TH Temperature and Humidity Sensor
Authorised Milesight UK Distributor£41.90 ex VAT (£50.28 inc. VAT)
EM320-TH is a LoRaWAN temperature and humidity sensor for cold chain and harsh environments. Its decisive spec is accuracy: typically ±0.2°C between 0°C and 60°C and ±0.3°C from -30°C to 0°C, alongside ±2% RH at 25°C. The IP67 food-grade enclosure is EN12830 certified and safe in contact with food or medicines, and two AA cells last over 10 years.
Temperature accuracyTyp. ±0.2°C (0°C ~ 60°C), ±0.3°C (-30°C ~ 0°C)
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
EM320-TH is a simple, compact and powerful LoRaWAN® temperature & humidity sensor. It is equipped with high-precision sensors and IP67 waterproof design, applicable for accurate temperature and humidity data detection in various harsh environments. FDA-approved food-grade material’s enclosure and magnet design allow it to be placed in freezers
and refrigerators and in contact with food or medicines safely.
In addition to LoRaWAN® technology with low power consumption, it has built-in high-capacity batteries available for usage for up to 5 years without battery replacement.
Moreover, EM320-TH is compatible with both Milesight LoRaWAN® Gateway and Milesight Development Platform to achieve remote data monitoring and management.
It is suitable for both indoor and outdoor applications such as cold chain transportation, agricultural greenhouses, office buildings, hospitals, factories,
Additional information
| Weight | 0.093 kg |
|---|
EM320-TH specifications
| Technology | LoRaWAN® |
|---|---|
| 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 |
| Temperature range | -30°C to +60°C |
| Temperature accuracy | Typ.: ±0.3°C (-30°C ~ 0°C), ±0.2°C (0°C ~ 60°C) |
| Temperature resolution | 0.1°C |
| Humidity range | 0% to 100% RH |
| Humidity accuracy | Typ.: ±2% (25°C) |
| Humidity resolution | 0.5% RH |
| Advanced features | Threshold alarm, data storage, data retransmission, data retrievability |
| Local storage | 3000 historical records with retransmission |
| Configuration | Mobile app via NFC |
| Power supply | 2 × 2700 mAh ER14505 Li-SOCl2 batteries |
| Battery life | ≥10 years (10 min interval, 25°C) |
| Operating temperature | -30°C to +60°C |
| Relative humidity | ≤95% |
| Ingress protection | IP67 |
| Material & colour | PC + ABS (food-grade), white |
| Weight | 93.2 g (standard version), 102 g (magnet version) |
| Dimensions | 85 × 58 × 18 mm (3.34 × 2.28 × 0.70 in) |
| Installation | Standard version: wall mounting, pole mounting; magnet version: magnetic adsorption |
| Approvals | CE, FCC, Telec, EN12830; RoHS |
Specifications taken from the manufacturer datasheet.
Which version do I need?
-868M is the EU868 band, the correct choice for the UK. The datasheet also documents two mechanical versions: a standard version for wall or pole mounting at 93.2 g, and a magnet version that attaches by magnetic adsorption at 102 g for placing inside freezers and refrigerators.
Typical applications for the EM320-TH
- Cold chain transportation
- Freezer and refrigerator monitoring
- Pharmaceutical and medicine storage
- Agricultural greenhouses
- Office buildings and hospitals
- Factory environment monitoring
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 EM320-TH 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.
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EM320-TH — frequently asked questions
Can it be placed inside a freezer or fridge in contact with food?
Yes. The enclosure uses FDA-approved food-grade PC + ABS material that is safe for contact with food or medicines, the magnet version attaches by magnetic adsorption, and the unit is EN12830 certified for cold-chain applications down to -30°C.
How accurate is it?
Temperature is typically ±0.2°C from 0°C to 60°C and ±0.3°C from -30°C to 0°C at 0.1°C resolution. Humidity is typically ±2% at 25°C across 0-100% RH at 0.5% RH resolution.
What batteries does it use and how long do they last?
Two 2700 mAh ER14505 Li-SOCl2 replaceable batteries, quoted at 10 years or more at a 10-minute reporting interval and 25°C.
Is it waterproof?
It is IP67 with a multi-level structure and sealing ring design, rated -30°C to +60°C at ≤95% relative humidity, so it suits both indoor and outdoor placement.
What happens to readings if the network drops out?
It stores 3000 historical records locally and supports data retransmission and data retrievability, so logged readings are recovered once the link returns.
How much does the Milesight EM320-TH Temperature and Humidity Sensor cost in the UK?
The Milesight EM320-TH Temperature and Humidity Sensor is £41.90 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 EM320-TH Temperature and Humidity Sensor?
The Milesight EM320-TH Temperature and Humidity 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.
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