STM 332U
STM 333U

Energy harvesting wireless temperature sensor module. The STM 332U includes whip antenna and side oriented LRN button, the STM 333U includes a solar cell, helical antenna and side oriented LRN button.

Manufacturer Logo
Product Name
STM 332U
STM 333U
Module Category
Wireless Switch & Sensor Module
902 MHz EnOcean
Ordering Code
S3051-D332 / S3051-D333
Packaging Unit
Tray (100 pcs)

The extremely power saving RF transmitter module STM 332U (whip antenna, side oriented LRN button) and STM 333U (including solar cell, helical antenna and side oriented LRN button) of EnOcean are optimized for realization of wireless and maintenance free temperature sensors, or room operating panels including set point dial and occupancy button with a minimum number of external components. The module provides an integrated calibrated temperature sensor.

STM 332U and STM 333U also support the plug-in humidity sensor module HSM 100.

Please find here a product change notification on "New energy store for STM 3xy/4xy product family".

EnOcean Software and Firmware

Product Name
Short description
EnOcean ToolMobile phone app for configuration and commissioning of EnOcean NFC devices for installers Details
EnOcean NFC ConfiguratorNFC Configurator is a PC application enabling to write / read all accessible parameters specified for the product. Details
EnOcean LinkLinux based middleware for the EnOcean radio stack. Library to interpret all EnOcean Protocols (e.g. ESP3, EEP, Message Chaining, Remote Commissioning, Remote Management & Security) providing easy entry into EnOcean interoperable eco-systems for your applicationDetails
Gateway ControllerTransparent gateway to receive and transmit all EnOcean Telegrams on 868, 315 and 902 MHz. Includes Smart Acknowledge and Remote Management.Details