Sistem inspeksi kereta api
caption: Detektor as panas
caption: Sensors for a railway wheel impact load monitor, Lara, Victoria, Australia
caption: Guncangan pada roda kereta
caption: Detektor guncangan dan kinerja bogie—TBOGI
caption: Sistem pendeteksi as panas, PHOENIX MB (SST Signal & System Technik GmbH)
caption: Tanda ruang bebas G1 dan G2 (Jerman)
caption: Alat untuk pemeriksaan pantograf KRL
caption: A laser wheel profile detector