... ~ +50 °C , Humidity ≤ 95%RHTemp. Trip Point57°C (135°F) Rate-Of-Rise8°C (15°F)/MinDetecting Range50m² at 6-12m ... technicals adjusting as per customer' s special request.3) Answer your enquiries, questions and emails in 24 hours4) Direct control on ... material, testing, quality, leadtime etc. Fire Alarm Heat Detector (Rate-Of-Rise, Fixed Temperature)