Does this unit have day/night sensing?
1164171
Yes it has a photocell. Has 3 manually adjustable dials underneath for sensitivity (30%-100%), photocell (on 24/7 - night only), and time (5 seconds - 12 minutes)
1164172
The unit has a choice of two modes--24-Hour operation or Night Only. Both are governed by a Photocell Sensitivity knob, which tells the unit under what lighting conditions to activate. Between the two controls you can have the unit activate Day & Night, Day Only, or Night only. Sounds a little confusing but it works.Also, regardless of how you have the unit configured to activate the main lights, it always indicates when it senses motion by flashing a small red LED on its face.Hope this answers your question. You can also download spec sheets and manuals from RAB's web site (www-dot-rabweb-dot-com). The unit has a choice of two modes--24-Hour operation or Night Only. Both are governed by a Photocell Sensitivity knob, which tells the unit under what lighting conditions to activate. Between the two controls you can have the unit activate Day & Night, Day Only, or Night only. Sounds a little confusing but it works.Also, regardless of how you have the unit configured to activate the main lights, it always indicates when it senses motion by flashing a small red LED on its face.Hope this answers your question. You can also download spec sheets and manuals from RAB's... » Read More The unit has a choice of two modes--24-Hour operation or Night Only. Both are governed by a Photocell Sensitivity knob, which tells the unit under what lighting conditions to activate. Between the two controls you can have the unit activate Day & Night, Day Only, or Night only. Sounds a little confusing but it works.Also, regardless of how you have the unit configured to activate the main lights, it always indicates when it senses motion by flashing a small red LED on its face.Hope this answers your question. You can also download spec sheets and manuals from RAB's web site (www-dot-rabweb-dot-com). « Show Less
1360824
It has a adjustable setting for after sunset where you can choose home many hours, but no light sensor. You must rely on the zip set function which, contrary to some reviews, was very simple to setup.
1065249
No. It needs a timer and can only be changed from day to night by hand switch.
307233
There is no light sensor, unfortunately. So, as the days become longer, I have to change the time that it comes on. I hope that answers your question.
1436151
Yes, sensitivity is unchanged at night. The sensor eye illuminates slightly when it is sensing. In daylight it can not be seen. This does not affect it's ability to sense motion, but if you are trying to tell if you have set off the alarm you can not tell when the sensor is in bright light. You need a helper in the house to tell you when it is working.
831934
The answer is yes. Think of this just like a light at the end of your 3 way circuit. If the light would turn on then the sensor would also be engaged. The light (down stream) from the sensor will be on as needed when the sensor detects motion and no daylight.
1216127
NO, I am sorry but this is only a sensor light to activate a light bulb for dusk to dawn. Hope this helps.
2181000
Yes there is a sensor but it may not turn off on dark/cloudy days. Not an issue with this LED light. Electricity use is minimal.
1010020
No, it does not - it comes with the standard sensor that measures interior/exterior temperature only.
1561366
No it does not have the setting for night only.Don't know the model number that you are looking for.
777515
It does have a built in FM receiver and will receive NOAA weather info of you program the frequencies. It does not have a weather alert feature.
1289435
Yes, the ST UI shows motion, temp, humidity and light (lux measurement), as well as battery status. Its worked well for me, in an outside position in extreme cold (10 degrees last night). Jeff
1013825
No it does not.... there is a sensor and when it gets dark it turns on automatically. They work great!
1745035
This unit doesn't have a day/night function. It has on, off and auto. I have it in a dimly lit hallway and it works day and night. Whenever I walk in the hallway it comes on day and night. This one works whether there is light or not, it is a motion light.
2168307
Yes, it has a sensor. The sensor is attached to a wire, which is plugged into the unit. The sensor is external, but I am not aware of add-on sensors that are internal, being available.
1520933
It does have motion detection and the sensitivity can be adjusted. And it has alarming systems for all devices which are compatible. Even email alarms.
556871
No, this particular package does not, but you can buy this with one if you want. I bought this as an additional sensor for the system I already had.