EnOcean STM 330U RF Transmitter Module 315 MHz

  • RS Stock No. 173-2657
  • Mfr. Part No. STM 330U
  • Manufacturer EnOcean
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

Wireless Temperature Sensor Transmitter Module STM330

The EnOcean STM 330 ISM-band transmitter module incorporates a solar cell power supply and a calibrated temperature sensor. Power is provided by either the on-board solar cell, an external energy harvester or an external 3V battery. An energy storage element is installed to bridge periods with no supply from the energy harvester. The module provides a user configurable cyclic wake up. After wake up a radio telegram will be transmitted in case of a significant change of measured temperature or set point values or if a room occupancy button is pressed. In case of no relevant input change, a redundant retransmission signal is sent after a user-configurable number of wake-ups to announce all current values.

On-board solar cell energy harvester
Temperature sensor measurement range: 0 to 40°C
Operating frequency: 868.3MHz (STM 330 RS 786-3209), 315MHz (STM 330C RS 786-3218)
Data rate: 125kbps
Modulation: ASK
Radiated output power: STM 330: 8dBm (typical EIRP), STM 330C 92dBμV/m typical
Start-up time with empty energy storage typically <2.5 min @ 400lux, 25°C
Initial operation time in darkness @25°C: typically 4 days if energy storage fully charged
Wake-up every 100s, transmission every 1000s on average
Internal input channels: temperature sensor, LRN button
External input channels: room occupancy button, set point dial, HSM 100 via 20-pin connector
LED transmission indicator
EnOcean Equipment profiles: configurable EEPs: A5-02-05, A5-10-05, A5-10-03 and with HSM 100: A5-04-01, A5-10-10, A5-10-12
Pre-installed whip or helix antenna
Dimensions: 43 x 16 x 8mm
Operating temperature range: -20 to +60°C
Applications: Room operating panels communicating with the Internet of Things (IoT)

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.

Attribute Value
Module Type Transmitter
Supported Frequency Bands 315 MHz
Modulation Technique ASK
Maximum RF Data Rate 125kbit/s
Dimensions 43 x 16 x 8mm
Height 8mm
Length 43mm
Maximum Operating Temperature +60°C
Minimum Operating Temperature -20°C
Width 16mm
Temporarily out of stock - back order for despatch 27-05-2020, delivery within 2 working days
Unit of sale: Each (In a Box of 100)
(exc. VAT)
(inc. VAT)
Per unit
Per Box*
100 +
*price indicative
Related Products
This narrow-band FM transmitter offers an operating range ...
This narrow-band FM transmitter offers an operating range of up to 1000m Approved to MPT1329/31, thus licence exempt. TTL/CMOS compatible Digital data transmission Frequency selection free in 11 channels for 458MHzR&TTE (EN300 220) Compliant Dimensions 36x26x10mm (Tx), 50x30x95mm (Rx)Suitable for ...
The RFM9xW Transceiver Modules feature the Semtech SX1272 ...
The RFM9xW Transceiver Modules feature the Semtech SX1272 transceiver chip which uses a variation of Chirp Spread Spectrum coding called Lo Ra™, to improve receiver sensitivity and hence achieve extended range The module can also use OOK and FSK modulation ...
The eRAx00TS is a complete system-on-module that combines ...
The eRAx00TS is a complete system-on-module that combines a high performance very low power RF ISM-Band transmitter, a microcontroller and a voltage regulator The module provides a secure serial data communication link based on the easy Radio protocol with 16-bit ...
This FM-RTFQ/RRFQ range of FM radio data modules ...
This FM-RTFQ/RRFQ range of FM radio data modules consists of transmitters and receivers operating in the 433/868 ISM frequency bands RF Carrier Frequency: 433.92/869.35MHz ISM Band Bandwidth: ±150k HzTransmitter Output Power: +1d Bm (868.35MHz)Receiver Sensitivity: -103d Bm (433.92MHz), -100d Bm ...