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11 11  
12 12  The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
13 13  
14 -LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
14 +LHT65N has a built-in 2400mAh non-chargeable battery which can be used for more than 10 years*.
15 15  
16 16  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
17 17  
18 -LHT65N supports (% class="mark" %)Datalog Feature(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
18 +LHT65N supports Datalog feature. It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
19 19  
20 -*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
20 +*The actual battery life depends on how often to send data, please see battery analyzer chapter.
21 21  
22 22  
23 23  == Features: ==
... ... @@ -27,13 +27,14 @@
27 27  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
28 28  * AT Commands to change parameters
29 29  * Remote configure parameters via LoRaWAN Downlink
30 -* Firmware upgradeable via program port
31 -* Built-in 2400mAh battery for up to 10 years of use.
30 +* Firmware upgradable via program port
31 +* Built-in 2400mAh battery for more than 10 years of use.
32 32  * Built-in Temperature & Humidity sensor
33 33  * Optional External Sensors
34 -* Tri-color LED to indicate working status
34 +* Tri-color LED to indicate status
35 35  * Datalog feature
36 36  
37 +
37 37  == Specification: ==
38 38  
39 39  **Built-in Temperature Sensor:**
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41 41  * Resolution: 0.01 °C
42 42  * Accuracy Tolerance : Typ ±0.3 °C
43 43  * Long Term Drift: < 0.02 °C/yr
44 -* Operating Range: -40 ~~ 85 °C
45 +* Operating Range: -40 ~~ 125 °C
45 45  
47 +
46 46  **Built-in Humidity Sensor:**
47 47  
48 48  * Resolution: 0.04 %RH
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50 50  * Long Term Drift: < 0.02 °C/yr
51 51  * Operating Range: 0 ~~ 96 %RH
52 52  
53 -**External Temperature Sensor:**
54 54  
56 +**External Temperature Sensor – E1:**
57 +
55 55  * Resolution: 0.0625 °C
56 56  * ±0.5°C accuracy from -10°C to +85°C
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 61  
62 -== How does LHT65N work? ==
64 +Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
63 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.
66 +=== Sub-sub paragraph ===
65 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.
68 +Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
67 67  
68 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 -
106 -= Sensors & Accessories =
107 -
108 -== E3 Temperature Probe ==
109 -
110 -[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
111 -
112 -
113 -With Temperature sensor with 2 meters cable long
114 -
115 -* Resolution: 0.0625 °C
116 -* ±0.5°C accuracy from -10°C to +85°C
117 -* ±2°C accuracy from -55°C to +125°C
118 -* Operating Range: -40 ~~ 125 °C
119 -* -55°C to 125°C
120 -* Working voltage 2.35v ~~ 5v
121 -
122 -
123 -= Battery & How to replace =
124 -
125 -== Battery Type ==
126 -
127 -LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
128 -
129 -The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
130 -[[image:image-20220515075034-1.png||height="208" width="644"]]
131 -
132 -
133 -The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
134 -
135 -
136 -== Replace Battery ==
137 -
138 -LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
139 -
140 -[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
141 -
142 -
143 -== Battery Life Analyze ==
144 -
145 -Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
146 -https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
147 -
148 -
149 149  = Order Info =
150 150  
151 -Part Number: (% class="mark" %)**LHT65N-XX**
73 +Part Number: (% class="mark" %)**LHT65-XX**
152 152  
153 153  **XX**: The default frequency band
154 154  
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160 160  * **US915**: LoRaWAN US915 band
161 161  * **IN865**: LoRaWAN IN865 band
162 162  * **CN470**: LoRaWAN CN470 band
163 -
164 -**YY**: Sensor Accessories
165 -
166 -* **E3**: External Temperature Probe
167 -
168 -= Packing Info =
169 -
170 -**Package Includes**:
171 -
172 -* LHT65N Temperature & Humidity Sensor x 1
173 -* Program cable x 1
174 -* Optional external sensor
175 -
176 -**Dimension and weight**:
177 -
178 -* Device Size:  13.5 x 7 x 3 cm
179 -* Device Weight: 105g
180 -* Package Size / pcs : 14.5 x 8 x 5 cm
181 -* Weight / pcs : 170g
182 -
183 -= FCC Warning =
184 -
185 -This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
186 -
187 -(1) This device may not cause harmful interference, and
188 -
189 -(2) this device must accept any interference received, including interference that may cause undesired operation
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