Does the sensor need an unobstructed view to monitor?
48671
No. Our mailbox is about 80 feet from the receiver and the signal has to go through two walls and a metal garage door.it works great. We love this thing.
48672
I would say no. If this helps this is how ours is set up. The alarm is on the inside of the door of the mailbox which is kept closed. The beeper is in the house by the wall, so the alarm and beeper do have a wall (and a 88 foot driveway plus width of road between them). We love it!
2109112
Yes, the 2nd sensor can be left unplugged. If both sensors are used, they both would need to be opened for the alarm to sound.
409283
Yes, that's largely the point of motion sensors. :-) They operate in the infrared spectrum, so visible light is not necessary. They're often used to turn on lights when motion is sensed, which is what I do with mine.
1635536
No the unit is self standing once programed. Very user friendly. No monthly monitoring fees ever...
410410
I am almost never close to the monitor or know that it has this feature. When I set this system up, and I have set up two systems in different places, I do not recall activating or that it has this feature. Otherwise, I love it and sometimes take the monitor out of the base to make observations. Being able to look in on both systems from my cell phone is a plus. Using my iPhone I can take pictures of my observations.
2212207
Yes. Either as independent or slaved. By wiring you can dictate one sensor or both. Instructions are in the package. I have two slaved so either sensor triggers both.
1692305
Like the previous answer nope, but it came with a plastic reflective device which I didnt use because I didnt need it. Guess depends how you position your system.
1254319
No you do not. Ive had mine in place for a few years now without a sensor and everything's running great!
1701674
It is an inexpensive sensor ... doubtful they make it in a way to be taken apart.
1877357
Not actually, the sensors comes with a L.E.D display that has a built-in speaker, it alert you when you're backing up and how far of a distance you are approaching. Basically it has no other input or output.
44707
No. At least mine doesn't. But you can see the picture clearly from multiple angles it doesn't have to be head on
2231028
Ahhhh, duh, only if the sensor is able to see motion! You need to ask yourself, can the sensor see any motion, from being covered by the shade? No? Then the answer is No. Who asks some of these questions......
712263
No, it doesn't, however it should be close with no interference. We did end up having it within 20 ft of the sensor in order for it to work consistently.
866000
There is only one sensor and it is inside the unit. I don't think this is meant to be outside, it mounts on the wall in the drywall.
1349507
Yes - the video is still visible. You can also turn the screen off and just listen to audio. This is a great baby monitor - I would buy it again. Addendum: we ended up buying another one of these monitors and after just a few months use neither unit works anymore. The product I bought on Amazon has no audio - we had to buy an audio monitor to substitute for the malfunctioning unit. The warranty process to return the defective unit is incredibly tidious and with significant delay. After spending more money to buy a audio monitor and paying for shipping this unit back to the manufacturer I no longer recommend this monitor - all in all its not worth the money or time
1707284
Yes. I don't know of a way to hook up more than one sensor. Works well though.
366707
Small outside sensor was included. Mounts on a screw that you place on outside wall