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Slave unit

MSU-SD7Multi-sensor slave unit

The MSU-SD7 is the slave version of the MSU-MD7: it comes with the same configuration as standard, in a compact 100 × 75 × 29 mm IP68 enclosure, but has no LTE-M cellular section. It communicates directly with the MSU-MD7 master unit over LoRa or with the gateways over LoRaWAN, and runs on battery for up to 10 years.

Battery life
Up to 10 years
Network
LoRa · LoRaWAN
Enclosure
IP68
MSU-SD7 IoT slave unit in a compact IP68 enclosure

Highlights

Add as many measurement points as you need

Up to 10 years of battery life

Low-power design: fewer site visits and lower operating costs.

Multi-sensor

A single device monitors several parameters: temperature, light, movement and radar.

Flexible deployment

Networked with an MSU-MD7 master unit over LoRa, or directly with the gateways over LoRaWAN.

Rugged and reliable

An IP68 UV-resistant polycarbonate enclosure, built for the most demanding industrial environments.

Description

The MSU-SD7 in detail

Ideal for covering a site in detail: each MSU-MD7 master unit drives up to 5 slaves. The MSU-SD7 can also communicate directly with the MSU-SG7 and MSU-G7 gateways over LoRaWAN.

In telecom chambers it goes inside a fibre splice closure or is strapped around it with two cable ties. Like the master unit, it has a cable gland for an external probe and two channels configurable as a probe or a dry contact.

View and dimensionsAll dimensions in mm
Dimensioned drawing of the MSU-SD7, 100 × 75 × 29 mm

MSU-SD7 technical specifications

MSU-SD7 datasheet
EnclosureIP68, UV-resistant polycarbonate
Impact protectionIK08IK rating
Dimensions100 × 75 × 29 mm
Weight110 gdepending on the configuration
MountingWall, pole or cable-tie mounted
SensorsTemperature, light, accelerometer (movement, inclination), 60 GHz radar
External inputs2 channels: wired probe or dry contact
CommunicationLoRa, LoRaWAN, NFC
Range5 to 10 kmdepending on the environment
Power supply3.6 V lithium battery
Battery lifeUp to 10 years7 to 10 years depending on the configuration
Cable glandReserved for an external probe
FrequenciesEU868, US915, AS923
CertificationsCE, RoHS
Probe protocolsI2C, PSI
DesignDeveloped in France

Specifications are provided for guidance and may vary depending on the configuration.

MSU-SD7 datasheetPDF, 1.0 MB

Applications

  • Telecommunications
  • Smart city
  • Industrial automation
  • Water monitoring
  • Wastewater
  • District heating
  • Energy & utilities
  • Agriculture
  • Environmental monitoring

Frequently asked questions

Questions about the MSU-SD7

Answers to the most common questions before choosing this device.

Does the MSU-SD7 need a master unit?

Not necessarily. It transmits over LoRa to an MSU-MD7 master unit, which handles up to 5 slaves, or directly to the MSU-SG7 and MSU-G7 gateways over LoRaWAN. It has no LTE-M cellular section.

What is the difference between the MSU-SD7 and the SU-CD7?

The MSU-SD7 is an IP68 enclosure with a cable gland for an external probe, suitable for outdoor use. The SU-CD7 is an ultra-flat IP65 model, without an external probe, intended for indoor or sheltered environments.

How is the MSU-SD7 attached to a fibre splice closure?

It is installed inside the closure or strapped around it with two cable ties.

How long does the MSU-SD7 battery last?

Up to 10 years on a 3.6 V lithium battery, depending on the configuration.

Read more

Articles about this device

Measuring tank level with a 60 GHz radar

60 GHz radar, ultrasonic or pressure probe: how to measure the level of a tank, reservoir or container remotely, and how to avoid false readings.

3 min

Range

Related products

Master unit
MSU-MD7 IoT master unit with LTE antenna and NFC area

Multi-sensor master unit

MSU-MD7

The heart of your sensor network

Battery life
Up to 10 years
Network
LoRaWAN · LTE-M
Slaves
Up to 5
View the datasheet
Slave unit
SU-CD7 ultra-flat IoT sensor measuring 70 × 50 × 15 mm

Ultra-flat slave sensor

SU-CD7

Smaller than a bank card

Thickness
15 mm
Network
LoRaWAN
Battery life
Up to 10 years
View the datasheet

A project with the MSU-SD7?

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