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394	394
395	395	== 2.8 installation ==
396	396
397		-~1. Don't install LHT65N-PIR outdoor or place where will get wet
	397	+~1. Don't install LHT65N-PIR outdoor or place where will get wet.
398	398
399		-2. Towards the PIR probe to the place where need to monitor activity.
	399	+2. Towards the PIR probe to the place where need to monitor activity. Below is the detect beam.
400	400
	401	+Stable distance is 0~~3m. Some motion might not detected between 3~~5 m.
401	401
	403	+[[image:image-20230411135341-1.png||height="450" width="456"]]
402	402
	405	+**Notice: PIR can only detect motion activity, not to use to detect static people case.**
	406	+
	407	+* 1. PIR Motion Detector should not be installed near the Air conditioner places where with cold wind or hot wind flow, because PIR motion detector is sensitive with the temperature changes of the environment. Environment changes quickly will cause a false alarm.
	408	+* 2. PIR should not be installed facing the glass window, facing glass window will be interfered by the outside sunlight and moving objects (people or vehicle). The infrared energy can penetrate the glass window.
	409	+* 3. PIR should not be installed facing the moving objects or background changing objects, movement object will cause airflow change, it may cause false alarm.
	410	+* 4. Between the detection range of PIR Motion detector, there is should be less objects.  Many objects may reduce the sensitive of detection range.
	411	+* 5. Do not install more than one (2 or above) Wireless PIR in the same detection space (like at the same room).
	412	+
	413	+
403	403	= 3. Sensors and Accessories =
404	404
405	405	== 3.1 E2 Extension Cable ==
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546	546
547	547	= 6. OTA firmware update =
548	548
549		-Please see this link for how to do OTA firmware update: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
	560	+User can change firmware S31x-LB to:
550	550
	562	+* Change Frequency band/ region.
	563	+* Update with new features.
	564	+* Fix bugs.
551	551
	566	+Firmware and changelog can be downloaded from : **[[Firmware download link>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**
	567	+
	568	+Methods to Update Firmware:
	569	+
	570	+* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
	571	+* Update through UART TTL interface. **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
	572	+
	573	+
552	552	= 7. FAQ =
553	553
554	554	== 7.1 How to use AT Command? ==
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609	609	[[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
610	610
611	611
612		-== 6.3 How to change the uplink interval？ ==
	634	+== 7.3 How to change the uplink interval？ ==
613	613
614	614	Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
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