Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -77,7 +77,6 @@ 77 77 * Tri-color LED to indicate working status 78 78 * Datalog feature 79 79 80 - 81 81 (% _mstvisible="1" %) 82 82 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) == 83 83 ... ... @@ -365,7 +365,6 @@ 365 365 * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.) 366 366 367 367 368 - 369 369 (% _mstvisible="1" %) 370 370 === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) === 371 371 ... ... @@ -403,7 +403,6 @@ 403 403 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV 404 404 405 405 406 - 407 407 (% _mstvisible="1" %) 408 408 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) === 409 409 ... ... @@ -420,7 +420,6 @@ 420 420 * Temperature: (0xF5C6-65536)/100=-26.18℃ 421 421 422 422 423 - 424 424 (% _mstvisible="1" %) 425 425 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) === 426 426 ... ... @@ -430,7 +430,6 @@ 430 430 (% _mstvisible="1" %) 431 431 * Humidity: 0x025C/10=60.4% 432 432 433 - 434 434 (% _mstvisible="1" %) 435 435 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) === 436 436 ... ... @@ -557,7 +557,6 @@ 557 557 ))) 558 558 ))) 559 559 560 - 561 561 (% _mstvisible="1" %) 562 562 * (% _msthash="2539669" _msttexthash="857922" _mstvisible="3" %)**Battery status & **(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity** 563 563 ... ... @@ -588,7 +588,6 @@ 588 588 589 589 ))) 590 590 591 - 592 592 (% _mstvisible="1" %) 593 593 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte** 594 594 ... ... @@ -600,7 +600,6 @@ 600 600 * Sync time OK: 1: Set time ok,0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server. 601 601 * Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this) 602 602 603 - 604 604 (% _mstvisible="1" %) 605 605 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) == 606 606 ... ... @@ -663,7 +663,6 @@ 663 663 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range. 664 664 1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover. 665 665 666 - 667 667 (% _mstvisible="1" %) 668 668 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) === 669 669 ... ... @@ -917,7 +917,6 @@ 917 917 ))) 918 918 ))) 919 919 920 - 921 921 (% _mstvisible="1" %) 922 922 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext** 923 923 ... ... @@ -1144,7 +1144,6 @@ 1144 1144 1145 1145 1146 1146 1147 - 1148 1148 (% _mstvisible="1" style="text-align: left;" %) 1149 1149 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) == 1150 1150 ... ... @@ -1174,7 +1174,6 @@ 1174 1174 * Working voltage 2.35v ~~ 5v 1175 1175 1176 1176 1177 - 1178 1178 (% _mstvisible="1" style="text-align: left;" %) 1179 1179 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) = 1180 1180 ... ... @@ -1266,7 +1266,7 @@ 1266 1266 Feature: Change LoRaWAN End Node Transmit Interval. 1267 1267 1268 1268 (% _mstvisible="1" style="text-align: left;" %) 1269 -(% _msthash="315356" _msttexthash="241696" _mstvisible="3"%)**AT Command: AT+TDC**1257 +(% style="color:#4f81bd" %)**AT Command: AT+TDC** 1270 1270 1271 1271 (% _mstvisible="1" %) 1272 1272 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]] ... ... @@ -1277,7 +1277,7 @@ 1277 1277 1278 1278 1279 1279 (% _mstvisible="2" style="text-align: left;" %) 1280 -(% _msthash="506255" _msttexthash="381992" _mstvisible="4"%)**Downlink Command: 0x01**1268 +(% style="color:#4f81bd" %)**Downlink Command: 0x01** 1281 1281 ))) 1282 1282 1283 1283 (% _mstvisible="1" %) ... ... @@ -1315,7 +1315,7 @@ 1315 1315 Feature: Change External Sensor Mode. 1316 1316 1317 1317 (% _mstvisible="1" style="text-align: left;" %) 1318 -(% _msthash="315358" _msttexthash="248118" _mstvisible="3"%)**AT Command: AT+EXT**1306 +(% style="color:#4f81bd" %)**AT Command: AT+EXT** 1319 1319 1320 1320 (% _mstvisible="1" %) 1321 1321 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]] ... ... @@ -1326,7 +1326,7 @@ 1326 1326 1327 1327 1328 1328 (% _mstvisible="2" style="text-align: left;" %) 1329 -(% _msthash="506258" _msttexthash="387855" _mstvisible="4"%)**Downlink Command: 0xA2**1317 +(% style="color:#4f81bd" %)**Downlink Command: 0xA2** 1330 1330 ))) 1331 1331 1332 1332 (% _mstvisible="1" %) ... ... @@ -1376,13 +1376,13 @@ 1376 1376 PID is default set to disable (0) 1377 1377 1378 1378 (% _mstvisible="1" style="text-align: left;" %) 1379 -(% _msthash="315361" _msttexthash="137488" _mstvisible="3"%)**AT Command:**1367 +(% style="color:#4f81bd" %)**AT Command:** 1380 1380 1381 1381 (% _mstvisible="1" %) 1382 1382 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]] 1383 1383 1384 1384 (% _mstvisible="1" style="text-align: left;" %) 1385 -(% _msthash="315362" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1373 +(% style="color:#4f81bd" %)**Downlink Command:** 1386 1386 1387 1387 (% _mstvisible="1" %) 1388 1388 * 0xA800 **~-~->** AT+PID=0 ... ... @@ -1389,7 +1389,6 @@ 1389 1389 * 0xA801 **~-~->** AT+PID=1 1390 1390 1391 1391 1392 - 1393 1393 (% _mstvisible="1" style="text-align: left;" %) 1394 1394 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) == 1395 1395 ... ... @@ -1397,7 +1397,7 @@ 1397 1397 Feature: Set device password, max 9 digits 1398 1398 1399 1399 (% _mstvisible="1" style="text-align: left;" %) 1400 -(% _msthash="315364" _msttexthash="295009" _mstvisible="3"%)**AT Command: AT+PWORD**1387 +(% style="color:#4f81bd" %)**AT Command: AT+PWORD** 1401 1401 1402 1402 (% _mstvisible="1" %) 1403 1403 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]] ... ... @@ -1408,7 +1408,7 @@ 1408 1408 1409 1409 1410 1410 (% _mstvisible="2" style="text-align: left;" %) 1411 -(% _msthash="506261" _msttexthash="298038" _mstvisible="4"%)**Downlink Command:**1398 +(% style="color:#4f81bd" %)**Downlink Command:** 1412 1412 ))) 1413 1413 1414 1414 (% _mstvisible="1" %) ... ... @@ -1427,17 +1427,19 @@ 1427 1427 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands. 1428 1428 1429 1429 (% _mstvisible="1" style="text-align: left;" %) 1430 -(% _msthash="315366" _msttexthash="289120" _mstvisible="3"%)**AT Command: AT+DISAT**1417 +(% style="color:#4f81bd" %)**AT Command: AT+DISAT** 1431 1431 1432 1432 (% _mstvisible="1" %) 1433 1433 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]] 1434 1434 1422 + 1435 1435 (% _mstvisible="1" style="text-align: left;" %) 1436 -(% _msthash="315367" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1424 +(% style="color:#4f81bd" %)**Downlink Command:** 1437 1437 1438 1438 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %) 1439 1439 No downlink command for this feature. 1440 1440 1429 + 1441 1441 (% _mstvisible="1" style="text-align: left;" %) 1442 1442 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) == 1443 1443 ... ... @@ -1445,17 +1445,19 @@ 1445 1445 Feature: Set device to sleep mode 1446 1446 1447 1447 (% _mstvisible="1" style="text-align: left;" %) 1448 -(% _msthash="315370" _msttexthash="289783" _mstvisible="3"%)**AT Command: AT+SLEEP**1437 +(% style="color:#4f81bd" %)**AT Command: AT+SLEEP** 1449 1449 1450 1450 (% _mstvisible="1" %) 1451 1451 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]] 1452 1452 1442 + 1453 1453 (% _mstvisible="1" %) 1454 -(% _msthash="315371" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1444 +(% style="color:#4f81bd" %)**Downlink Command:** 1455 1455 1456 1456 (% _mstvisible="1" %) 1457 1457 * There is no downlink command to set to Sleep mode. 1458 1458 1449 + 1459 1459 (% _mstvisible="1" %) 1460 1460 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) == 1461 1461 ... ... @@ -1463,17 +1463,19 @@ 1463 1463 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]] 1464 1464 1465 1465 (% _mstvisible="1" %) 1466 -(% _msthash="315373" _msttexthash="137488" _mstvisible="3"%)**AT Command:**1457 +(% style="color:#4f81bd" %)**AT Command:** 1467 1467 1468 1468 (% _mstvisible="1" %) 1469 1469 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]] 1470 1470 1462 + 1471 1471 (% _mstvisible="1" %) 1472 -(% _msthash="315374" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1464 +(% style="color:#4f81bd" %)**Downlink Command:** 1473 1473 1474 1474 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %) 1475 1475 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352 1476 1476 1469 + 1477 1477 (% _mstvisible="1" %) 1478 1478 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) == 1479 1479 ... ... @@ -1492,14 +1492,15 @@ 1492 1492 (% _mstvisible="1" %) 1493 1493 ((( 1494 1494 (% _mstvisible="2" %) 1495 -(% _msthash="506265" _msttexthash="137488" _mstvisible="4"%)**AT Command:**1488 +(% style="color:#4f81bd" %)**AT Command:** 1496 1496 ))) 1497 1497 1498 1498 (% _mstvisible="1" %) 1499 1499 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]] 1500 1500 1494 + 1501 1501 (% _mstvisible="1" %) 1502 -(% _msthash="315376" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1496 +(% style="color:#4f81bd" %)**Downlink Command:** 1503 1503 1504 1504 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %) 1505 1505 0x28 01 ~/~/ Same As AT+SYNCMOD=1 ... ... @@ -1507,6 +1507,7 @@ 1507 1507 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %) 1508 1508 0x28 00 ~/~/ Same As AT+SYNCMOD=0 1509 1509 1504 + 1510 1510 (% _mstvisible="1" %) 1511 1511 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) == 1512 1512 ... ... @@ -1514,17 +1514,19 @@ 1514 1514 Feature: Define System time sync interval. SYNCTDC default value: 10 days. 1515 1515 1516 1516 (% _mstvisible="1" %) 1517 -(% _msthash="315380" _msttexthash="137488" _mstvisible="3"%)**AT Command:**1512 +(% style="color:#4f81bd" %)**AT Command:** 1518 1518 1519 1519 (% _mstvisible="1" %) 1520 1520 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]] 1521 1521 1517 + 1522 1522 (% _mstvisible="1" %) 1523 -(% _msthash="315381" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1519 +(% style="color:#4f81bd" %)**Downlink Command:** 1524 1524 1525 1525 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %) 1526 1526 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A 1527 1527 1524 + 1528 1528 (% _mstvisible="1" %) 1529 1529 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) == 1530 1530 ... ... @@ -1532,17 +1532,19 @@ 1532 1532 Feature: Print the sector data from start page to stop page (max is 416 pages). 1533 1533 1534 1534 (% _mstvisible="1" %) 1535 -(% _msthash="315384" _msttexthash="264953" _mstvisible="3"%)**AT Command: AT+PDTA**1532 +(% style="color:#4f81bd" %)**AT Command: AT+PDTA** 1536 1536 1537 1537 (% _mstvisible="1" %) 1538 1538 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]] 1539 1539 1537 + 1540 1540 (% _mstvisible="1" %) 1541 -(% _msthash="315385" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1539 +(% style="color:#4f81bd" %)**Downlink Command:** 1542 1542 1543 1543 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %) 1544 1544 No downlink commands for feature 1545 1545 1544 + 1546 1546 (% _mstvisible="1" %) 1547 1547 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) == 1548 1548 ... ... @@ -1550,17 +1550,19 @@ 1550 1550 Feature: Print the last few data entries 1551 1551 1552 1552 (% _mstvisible="1" %) 1553 -(% _msthash="315388" _msttexthash="288522" _mstvisible="3"%)**AT Command: AT+PLDTA**1552 +(% style="color:#4f81bd" %)**AT Command: AT+PLDTA** 1554 1554 1555 1555 (% _mstvisible="1" %) 1556 1556 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]] 1557 1557 1557 + 1558 1558 (% _mstvisible="1" %) 1559 -(% _msthash="315389" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1559 +(% style="color:#4f81bd" %)**Downlink Command:** 1560 1560 1561 1561 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %) 1562 1562 No downlink commands for feature 1563 1563 1564 + 1564 1564 (% _mstvisible="1" %) 1565 1565 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) == 1566 1566 ... ... @@ -1568,17 +1568,19 @@ 1568 1568 Feature: Clear flash storage for data log feature. 1569 1569 1570 1570 (% _mstvisible="1" %) 1571 -(% _msthash="315392" _msttexthash="311415" _mstvisible="3"%)**AT Command: AT+CLRDTA**1572 +(% style="color:#4f81bd" %)**AT Command: AT+CLRDTA** 1572 1572 1573 1573 (% _mstvisible="1" %) 1574 1574 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]] 1575 1575 1577 + 1576 1576 (% _mstvisible="1" %) 1577 -(% _msthash="315393" _msttexthash="388193" _mstvisible="3"%)**Downlink Command: 0xA3**1579 +(% style="color:#4f81bd" %)**Downlink Command: 0xA3** 1578 1578 1579 1579 (% _mstvisible="1" %) 1580 1580 * Example: 0xA301 ~/~/Same as AT+CLRDTA 1581 1581 1584 + 1582 1582 (% _mstvisible="1" %) 1583 1583 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) == 1584 1584 ... ... @@ -1587,7 +1587,7 @@ 1587 1587 1588 1588 1589 1589 (% _mstvisible="1" %) 1590 -(% _msthash="315395" _msttexthash="334256" _mstvisible="3"%)**AT Command: AT+PNACKMD**1593 +(% style="color:#4f81bd" %)**AT Command: AT+PNACKMD** 1591 1591 1592 1592 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %) 1593 1593 The default factory setting is 0 ... ... @@ -1596,12 +1596,14 @@ 1596 1596 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response** 1597 1597 (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK 1598 1598 1602 + 1599 1599 (% _mstvisible="1" %) 1600 -(% _msthash="315397" _msttexthash="383981" _mstvisible="3"%)**Downlink Command: 0x34**1604 +(% style="color:#4f81bd" %)**Downlink Command: 0x34** 1601 1601 1602 1602 (% _mstvisible="1" %) 1603 1603 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1 1604 1604 1609 + 1605 1605 (% _mstvisible="1" %) 1606 1606 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) = 1607 1607 ... ... @@ -1660,27 +1660,24 @@ 1660 1660 [[image:image-20220530085651-1.png]] 1661 1661 1662 1662 1663 -Connection: 1668 +**Connection:** 1664 1664 1665 -✓ USB to TTL GND <~-~->GND 1670 +✓** USB to TTL GND <~-~->GND** 1666 1666 1667 -✓ USB to TTL RXD <~-~-> D+ 1672 +**✓ USB to TTL RXD <~-~-> D+** 1668 1668 1669 -✓ USB to TTL TXD <~-~-> A11 1674 +**✓ USB to TTL TXD <~-~-> A11** 1670 1670 1671 -✓ USB to TTL 3.3V <~-~-> D- 1676 +**✓ USB to TTL 3.3V <~-~-> D-** 1672 1672 1673 -In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to 1674 1674 1675 -access serial console for LHT65N. The AT commands are disable by default and need to enter 1679 +((( 1680 +In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout. 1681 +))) 1676 1676 1677 -password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute, 1678 - 1679 -user need to input password again. User can use AT+DISAT command to disable AT command 1680 - 1681 -before timeout. 1682 - 1683 +((( 1683 1683 Input password and ATZ to activate LHT65N,As shown below: 1685 +))) 1684 1684 1685 1685 [[image:image-20220530095701-4.png]] 1686 1686 ... ... @@ -1731,14 +1731,10 @@ 1731 1731 1732 1732 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms 1733 1733 1734 -AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 1736 +AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms 1735 1735 1736 -in ms 1738 +AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms 1737 1737 1738 -AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 1739 - 1740 -in ms 1741 - 1742 1742 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA) 1743 1743 1744 1744 AT+NWKID: Get or Set the Network ID ... ... @@ -1948,6 +1948,10 @@ 1948 1948 ((( 1949 1949 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %) 1950 1950 Weight / pcs : 170g 1949 + 1950 + 1951 +(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %) 1952 + 1951 1951 ))) 1952 1952 1953 1953 = 9. Reference = ... ... @@ -1954,6 +1954,8 @@ 1954 1954 1955 1955 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]] 1956 1956 1959 + 1960 + 1957 1957 = 10. FCC Warning = 1958 1958 1959 1959 (% _mstvisible="1" %)