The JBE TSS912C-I is an autonomous smoke detector designed to provide reliable early warning through photoelectric sensing technology. It operates on a replaceable 9V DC battery, maintaining a low standby current of ≤ 25 µA to ensure efficiency over its service life of more than 10 years. When smoke is detected, the device alerts you with both a visual LED indicator and a loud siren that exceeds 85dB(A) at a distance of 3 meters. This white plastic device features a compact circular design with a diameter of 100.8 mm and a depth of 36.7 mm, weighing no more than 0.15 kg without the battery. For those managing multiple units, it includes normally open contacts that allow for a group launch signal, meaning several detectors can be interconnected to trigger simultaneously. It is built to function in temperatures ranging from -10°C to +55°C and carries an IP40 protection rating, making it suitable for standard indoor environments. The housing includes a dedicated test button and clear installation markings to help you secure it properly without painting over the sensor.