3 lcd monitors

Built-in high quality webcam is easy for popular instant messaging applications on 19 inch widescreen. Provides the high contrast ratio of 5000:1, which can dynamically adjust contrast between black and white to provide sharper and brighter images - especially during games and movies. Aspect Control Technology supports Full 4:3 aspect mode selections to show 16:10(wide) and 4:3 video contents without image distortion!! Splendid Video Intelligence Technology fine tunes the colour, brightness, contrast and s...

C. SPECIFICATIONS: 1 Accuracy:±2dB(unde r reference conditions) 2 Frequency range:31.5Hz to 8.5K Hz 3 Linearity range: 30dB 4 Measuring level: 40 ~ 130dBA,40 ~ 130dBC 5 Frequency weighting: A,C 6 Digital display: 4 digits Resolution:0.1dB Display: 0.5 secretary 7 Bar graph:50 dB scale at 1dB step for monitoring current sound pressure level display period :50mS 8 Level ranges:40 ~ 70dB,60~ 90dB,80 ~ 110dB,100~ 130dB,40 ~ 130dB 9 Over indicate over range: Under indicate less than lower limit of th range. 10 AC output:0.707 Vrms at FS output impendance approx 600? 11 Time weighting: Fast/Slow 12 Microphone:1/2 inch electret condenser microphone 13 Max: Maximum hold 14 Power supply: 6F22 9V alkaline cells or DC 9V 100mA 15 Operating Temperature:0? to 40? Operating... Less

When enabled the monitor will automatically record up 3 blood pressure readings, waiting 1 minute between readings. It will average these readings which can be recalled from the devices memory. The monitor will also average morning measurements (04:00 till-09:59) and evening measurements (18:00 till 1:59). The smooth fit pre formed adult cuff supplied is easy to fasten, doesn't have a metal bar and has a wide size range of 17-32cm so it can comfortably be used on smaller arms. The large 62mm by 72mm LCD display is easy to read. This monitor has a 5 year warranty (monitor only) and is supplied with a adult cuff, 4 batteries and a carry case. The UA-1020 is designed to be easy to use and ensure optimum accurate readings are achieved every time. Two unique warning symbols shown below... Less

Infrared Video Door Phone System (6 LCD Screens, Easy Installation), HighlightsAdvanta ge :The system include 1outdoor unit 6pcs indoor monitor , support 1building which have 6households4- wire operation , but still very easy to install.audio amp; video transmission , unlock and hand-free user friendly designMulti- intercom , each household can connect 4pcs monitors at most .Host cameraType: Direct press-host camera Feature: Direct press-host camera with 6pcs call buttonInstallatio n in: outdoor or main entrance Material : plastic Alloy Night light source:6LEDSEasy to installation : 4wire cable to connect camera from the monitor Suitable for : Small apartment building, villa area, can support 5-6pcs apartments/flats How to work : Visitor just need press the button(with room number or... Less