SP-4002-R Outdoor Siren Satel SP-4002-R Outdoor optical-acoustic siren designed for use in intruder and hold-up alarm systems. The light source is LEDs, while the sound signal is generated by a piezoelectric transducer. The device has an internal 1.2Ah battery. The siren's outer housing is made of high-impact polycarbonate, providing very high mechanical strength and guaranteeing an aesthetic appearance even after many years of service. The siren's design provides a high degree of anti-sabotage protection (against opening and removal from the mounting surface). The SP-4002 optical-acoustic siren is available in three color versions: SP-4002 R (red); SP-4002 BL (blue); SP-4002 O (orange). KEY FUNCTIONS SP-4002-R processor control. Acoustic signaling: piezoelectric transducer. Optical signaling: super-bright LEDs. Internal metal cover. Anti-sabotage protection against removal from mounting; opening; sealed lead-acid battery included. Also available in blue (SP-4002 BL) and orange (SP-4002 O). TECHNICAL SPECIFICATIONS: Environmental class: III. Housing dimensions: 148 x 254 x 64 mm. Operating temperature range: -35...+55 °C. Rated supply voltage (15%): 12 V DC. Maximum current consumption: 260 mA. Weight: 1.2 kg. Sound pressure level: 120 dB. ELECTRICAL BOARD DESCRIPTION 1 - battery charging system fuse (3.15 A). 2 - battery connection wires (red +, black -). 3 - pins for siren configuration. 4 - terminals. GND - ground; +12V - power supply; STO - optical signaling control.; STA - acoustic signaling control.; TMP and TMP - tamper circuit.; SENS. and TMP - siren tamper contact.; 5 - wires for the piezoelectric transducer. 6 - pins for turning on/off the external power supply presence indication. The indication is on when the pins are shorted. 7 - LED indicating the presence of external power supply (short flash approx. every 3 seconds). 8 - LEDs for optical alarm indication. Manufacturer code: SP-4002 R .