Name:conventional heat Detector Function:truly stable Operating Voltage: DC20V~DC28V Delivery time:swift ... ) Adopt SMT technology, firmly, high secure and antijamming.3) Special methods for damp-proof, antisepsis and mildew-proof. 4) Flame retardant thermoplastic5 ... ~+50°C Related Humidity: ≤95% (40±2°C)Orena Sales and ServiceShenzhen Orena Photonic Technology Co., LtdAdd:Orena Bldg, Zhong'an ...