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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
	30	+* Firmware upgradable via program port
31	31	* Built-in 2400mAh battery for up to 10 years of use.
32	32	* Built-in Temperature & Humidity sensor
33	33	* Optional External Sensors
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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		-= Sensors & Accessories =
61		-
62		-== E3 Temperature Probe ==
63		-
64		-[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
65		-
66		-
67		-With Temperature sensor with 2 meters cable long
68		-
69		-* Resolution: 0.0625 °C
70		-* ±0.5°C accuracy from -10°C to +85°C
71		-* ±2°C accuracy from -55°C to +125°C
72		-* Operating Range: -40 ~~ 125 °C
73		-* -55°C to 125°C
74		-* Working voltage 2.35v ~~ 5v
75		-
76		-
77		-= Battery & How to replace =
78		-
79		-== Battery Type ==
80		-
81		-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.
82		-
83		-The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
84		-[[image:image-20220515075034-1.png||height="208" width="644"]]
85		-
86		-
87		-The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
88		-
89		-
90		-== Replace Battery ==
91		-
92		-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.
93		-
94		-[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
95		-
96		-
97		-== Battery Life Analyze ==
98		-
99		-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:
100		-https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
101		-
102		-
103	103	= Order Info =
104	104
105		-Part Number: (% class="mark" %)**LHT65N-XX**
	62	+Part Number: (% class="mark" %)**LHT65-XX**
106	106
107	107	**XX**: The default frequency band
108	108
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115	115	* **IN865**: LoRaWAN IN865 band
116	116	* **CN470**: LoRaWAN CN470 band
117	117
118		-**YY**: Sensor Accessories
119		-
120		-* **E3**: External Temperature Probe
121		-
122	122	= Packing Info =
123	123
124	124	**Package Includes**:
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134	134	* Package Size / pcs : 14.5 x 8 x 5 cm
135	135	* Weight / pcs : 170g
136	136
	90	+
137	137	= FCC Warning =
138	138
139	139	This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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143	143	(2) this device must accept any interference received, including interference that may cause undesired operation
144	144
145	145
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