The LAMTEC F152 Standard SIL 3 category flame monitoring device is suitable for many applications covering a broad range of monitoring requirements. The digital flame frequency evaluation covers a range from 10 to 200 Hz. The F152 flame monitoring device is approved for continuous operation.
Product brochure: ma-f152-dlt7666-16-aen-004
Lamtec: https://www.lamtec.de/en/products/flame-monitoring-system/f152.html