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57	57	* ±2°C accuracy from -55°C to +125°C
58	58	* Operating Range: -55 °C ~~ 125 °C
59	59
	60	+= Connect LHT65N to IoT Server =
	61	+
	62	+== How does LHT65N work? ==
	63	+
	64	+LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
	65	+
	66	+If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
	67	+
	68	+
	69	+== How to Activate LHT65N? ==
	70	+
	71	+The LHT65N has two working modes:
	72	+
	73	+* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
	74	+* **Working Mode**: In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode.
	75	+
	76	+The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
	77	+
	78	+[[image:image-20220515123819-1.png||height="379" width="317"]]
	79	+
	80	+|**Behavior on ACT**|**Function**|**Action**
	81	+|**Pressing ACT between 1s < time < 3s**|Test uplink status|If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once.
	82	+|**Pressing ACT for more than 3s**|Active Device|green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network.
	83	+|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
	84	+
	85	+== LED Indicator ==
	86	+
	87	+The LHT65N has a triple color LED which for easy shows different stage.
	88	+
	89	+While pressing ACT button, the LED will work as per LED status with ACT button.
	90	+
	91	+In a normal working state:
	92	+
	93	+* For each uplink, the BLUE LED or RED LED will blink once.
	94	+* BLUE LED when an external sensor is connected
	95	+* RED LED when an external sensor is not connected
	96	+* For each success downlink, the PURPLE LED will blink once
	97	+
	98	+
	99	+== Installation ==
	100	+
	101	+[[image:image-20220516231650-1.png||height="632" width="620"]]
	102	+
	103	+
	104	+
	105	+
60	60	= Sensors & Accessories =
61	61
62	62	== E3 Temperature Probe ==
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141	141	(1) This device may not cause harmful interference, and
142	142
143	143	(2) this device must accept any interference received, including interference that may cause undesired operation
144		-
145		-

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