Technical data: 1) Working voltage: DC 10V~16V 2) Max. power: 4W 3) Working temperature: -35 ~ +70 o C 4) Detecting distance: 0.35m ~ 2.50m 5) Measuring error: ±0.02m 6) Sensor detection angle: 120 degrees 7) Alarming volume of built-in siren: 60dB 8) Alarming volume of external siren: 60dB 9) Response time: 250ms 10) Ultrasonic frequency: 40kHz 11) Current consumption: 100~250mA Technical advantages: 1) Warranty period: three years 2) Sensor technical advantages: the core uses military techniques (aviation techniques) and has very high conversion efficiency from electricity to sound and stability; in it's structure, it uses internal dip angle focusing mode; so it's sensitivity is 2 ~ 3 times better than other normal sensors 3) Measurement technical advantages: it uses fuzzy data processing technology and ensures precise and stable data measurement; the measurement error is only 2cm; in 60cm it can even identify 2mm steel wire 4) Reliability technical advantages: the system adopts reliability design; the connectors, chip and power elements are used according to the aviation technology requirement; as a result, the service life of product is longer than the automobile service life a) The interface of connectors: BNC and PS-2 with self buckled lock, guarantee shockproof ability; the mold is from Sanyo b) Chip: original Philips newest chip c) Resistance: from Samsung d) Display: wide temperature range LCD is from stone, and when the system is turned on, it will have a self-test firstly then make some sounds, the sound times can show how many sensors works in order, and show whether all the sensors work in order, if there is a sensor that doesn't work, the display will show it e) Laboratory temperature test: -45 ~ +80°C 5) Certificate: ISO9001 (2000), E-Mark, FCC Currency: USD Unit Price: Quantity: Delivery: 7 days after receiving your payment