4 wire fire alarm smoke detector(210105)

Conventional Smoke Detector,Two or four-wire model,Advanced detection and discrimination algorithm,Easy installation,maintenance
Product features
o Two or four wire models
o Advanced detection and discrimination algorithms
o Easy installation and maintenance
o Sleek low-profile housing design
o SMD circuit board design-satisfactory quality and reliability guaranteed
o  N/C (normal/close) -N/O (normal/open) selectable relay output
o  AR (Auto Reset) function for security systems (optional for 4-wire models)
   Sensor specification:
o Smoke sensitivity: 1.90, +/- 0.92%/FT obscuration (UL standard); 0.10 to 0.157dB/m (En-54 standard)
o Ceiling spacing: 50-foot rating for heat sensor
o Start-up current: 70uA maximum
o Alarm impedance: for two-wire models: 100 Ohms +3V maximum; 560 Ohms +3V maximum (red LED open circuit)
o Reset voltage: less than 1V
o Reset time: less than one second
o Alarm indicator: LED continuously emitting red light
o Remote output: 15mA maximum, diode gate
o Temperature range: -10 to 50 degrees Celsius
o Permissible current: 80mA maximum at 13.8V
o Humidity: 0 to 95% RH, no condensation or icing
o Alarm contact: (for 4-wire) NO or NC operation, form A: 1.0A at 30V DC/0.5A at 125V AC
o Dimensions (diameter x H): 100 x 46mm, with base  Weight: 130g/set, with base

Conventional Smoke Detector,Two or four-wire