• RS Stock No. 786-3205
      • Brand EnOcean
      • Mfr. Part No. STM 320
      EnOcean RF Transmitter STM 320 868 MHz, ASK
      Product Details

      Wireless Magnet Contact Transmitter STM 320

      The EnOcean STM 320 ISM-band transmitter module incorporates a solar cell power supply and a magnet contact sensor. Powered by a small pre-installed solar cell, it works absolutely maintenance-free. An integrated energy store allows operation for several days even in total darkness. Key applications are window and door sensors. The STM 320 supervises an integrated reed contact and reports every status change immediately (open<>closed). In addition a sign-of-life signal is transmitted every 20-30 minutes.

      On-board solar cell energy harvester
      Reed-switch magnet sensor, Meder MK23-90-BV14496 or MK01-I
      Operating frequency: 868.3MHz
      Data rate: 125kbps
      Modulation: ASK
      Radiated output power: 5dBm (typical EIRP)
      EnOcean Equipment Profile: D5-00-01
      Start-up time with empty energy storage typ. <2.5min @ 400lux, 25°C
      Initial operation time in darkness @25°C: typically 6 days, if energy storage fully charged
      Internal Learn button
      LED transmission indicator
      Pre-installed helical antenna
      Module dimensions: 43 x 16 x 6mm
      Operating temperature range: -20 to +60°C
      Applications: Burglar alarm communicating with the Internet of Things (IoT)


      Companion mains-switching receiver module: RCM 250 (RS Part No. 189-172)

      Batteryless Wireless Applications

      EnOcean manufacture a range of transmitter and receiver products that operate in the 868MHz area of the ISM band. These devices are typically very efficient in terms of the power supply requirements and are used to send short messages.,The advantages of EnOcean technology are clearly illustrated through applications such as electrical control which eliminates the need for external wired connections and batteries.,Suitable for limitless applications where maintenance free and flexible switching needs to be installed without drilling, cabling and reconstruction costs.,Power in the transmitters is also created for "FREE" using energy harvesting techniques to create energy from the push button switches or solar power for its sensors transmitters.,Radio systems based around EnOcean technology can be formed into star, mesh, or hybrid topology networks, and are a good complement to ZigBee systems, typically in building automation and remote sensor applications.

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      Module TypeTransmitter
      Supported Frequency Bands868 MHz
      Modulation TechniqueASK
      Maximum RF Data Rate125kbit/s
      Maximum Output Power+5dBm
      Dimensions43 x 16 x 6mm
      Maximum Operating Temperature+60°C
      Minimum Operating Temperature-20°C
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      Temporarily out of stock - back order for despatch 14/07/2017
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      Technical Reference
      • RS Components

        Statement of conformity

        The product detailed below complies with the specifications published by RS Components. Where applicable it provides assurance that electrostatic discharge sensitive devices have been handled and packed under conditions that meet the administrative and technical requirements of the ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 Electrostatic Control Standards.
        RS Stock No. 786-3205
        Description EnOcean RF Transmitter STM 320 868 MHz, ASK
        Manufacturer/Brand: EnOcean
        Mfr. Part No. STM 320
        The foregoing information relates to product sold on, or after, the date shown below.
        Date Jun 27, 2017
        RS Components Ltd, Birchington Road, Corby, Northamptonshire, NN17 9RS, UK
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