Ex de enclosure combination, pre-wired Field strength testing tool EPM 300 RF SMA antenna socket with 0.5 m cable RF SMA antenna socket 0.5 m with TNC plug-in connector IP 65 RF SMA antenna extension 3 m cable RF high gain antenna RF SMA N antenna extension 5 m cable RF SMA N antenna extension 10 m cable Power supply 24V DC for Wireless receiver RF Rx Ex STM 295 2Ö/2S-R Ex STM 295 2Ö/2S-R/90° Ex STM 295 2Ö/2S-R-FE Ex STM 295 1Ö1S/1Ö1S-R/90°-FE Ex STM 295 2Ö/1Ö1S-R-FE Ex STM 295 1Ö1S/2Ö-R-FE Ex STM 295 2Ö/2S-A