Wanlin Fire - China source manufacturer for Thai fire protection law. Featured model WL-TH-HD (Fixed & Rate-of-Rise Heat Detector): Fixed temperature A2S, 70 deg C high-heat class; EN54-5 Class A2S, alarm at 70 deg C for boiler and generator rooms; Panel zone alarm + optional internal 85 dB sounder; -10 to +60 deg C, 0-95% RH. Full lineup: smoke and heat det···