Simple to install and operate, the Ds924I Crystal PIR Motion Sensor is a supervised, wireless sensor that detects intruders in large, open areas. Able to monitor multiple entry points, the sensor also includes a built-in tamper switch that triggers an alarm if anyone attempts to remove the sensor from its mounted location. As a wireless unit, the DS9241 can be located almost anywhere protection is needed. Learn Mode technology and a built-in "walk test" feature make the DS924i quick and easy to install.
Battery: 3.6 VDC, 1/2 AA lithium thionyl chloride battery Typical battery life: 4 to 5 years (depending on usage) Transmitter frequency: 319.5 MHz (crystal controlled) Transmitter frequency tolerance: ±7 KHz Modulation type: Amplitude Shift Key (ASK) Unique ID codes: 16 million Peak field strength: > 40,000 u V/m @ 3m Supervisory interval: 64 minutes Adjustable detection sensitivity: Standard, intermediate, or high Coverage pattern: Includes standard 40' by 40' lens (multiple lenses and masking kit available separately) Circuit board: Single board design Operating temperature: 10° F (-12° C) to 120° F (49° C) Enclosure: High-impact ABS plastic Weight: 4.6 ounces Dimensions: 4 inches (1.6 cm) x 3 inches (1.2 cm) x 2.5 inches (1 cm) Color: Belgian grey UL standard: UL639 FCC standard: FCC part 15