Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 120.14 >
edited by Xiaoling
on 2022/06/09 18:30
To version < 119.12 >
edited by Xiaoling
on 2022/06/09 18:17
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -77,6 +77,7 @@
77 77  * Tri-color LED to indicate working status
78 78  * Datalog feature
79 79  
80 +
80 80  (% _mstvisible="1" %)
81 81  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
82 82  
... ... @@ -365,7 +365,6 @@
365 365  
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  
... ... @@ -404,7 +404,6 @@
404 404  
405 405  
406 406  
407 -
408 408  (% _mstvisible="1" %)
409 409  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
410 410  
... ... @@ -422,7 +422,6 @@
422 422  
423 423  
424 424  
425 -
426 426  (% _mstvisible="1" %)
427 427  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
428 428  
... ... @@ -433,8 +433,6 @@
433 433  * Humidity:    0x025C/10=60.4%
434 434  
435 435  
436 -
437 -
438 438  (% _mstvisible="1" %)
439 439  === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
440 440  
... ... @@ -605,7 +605,6 @@
605 605  * 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)
606 606  
607 607  
608 -
609 609  (% _mstvisible="1" %)
610 610  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
611 611  
... ... @@ -669,7 +669,6 @@
669 669  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.
670 670  
671 671  
672 -
673 673  (% _mstvisible="1" %)
674 674  === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
675 675  
... ... @@ -923,6 +923,7 @@
923 923  )))
924 924  )))
925 925  
920 +
926 926  (% _mstvisible="1" %)
927 927  (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
928 928  
... ... @@ -1148,6 +1148,8 @@
1148 1148  )))
1149 1149  
1150 1150  
1146 +
1147 +
1151 1151  (% _mstvisible="1" style="text-align: left;" %)
1152 1152  == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1153 1153  
... ... @@ -1269,7 +1269,7 @@
1269 1269  Feature: Change LoRaWAN End Node Transmit Interval.
1270 1270  
1271 1271  (% _mstvisible="1" style="text-align: left;" %)
1272 -(% style="color:#4f81bd" %)**AT Command: AT+TDC**
1269 +(% _msthash="315356" _msttexthash="241696" _mstvisible="3" %)**AT Command: AT+TDC**
1273 1273  
1274 1274  (% _mstvisible="1" %)
1275 1275  [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
... ... @@ -1280,7 +1280,7 @@
1280 1280  
1281 1281  
1282 1282  (% _mstvisible="2" style="text-align: left;" %)
1283 -(% style="color:#4f81bd" %)**Downlink Command: 0x01**
1280 +(% _msthash="506255" _msttexthash="381992" _mstvisible="4" %)**Downlink Command: 0x01**
1284 1284  )))
1285 1285  
1286 1286  (% _mstvisible="1" %)
... ... @@ -1318,7 +1318,7 @@
1318 1318  Feature: Change External Sensor Mode.
1319 1319  
1320 1320  (% _mstvisible="1" style="text-align: left;" %)
1321 -(% style="color:#4f81bd" %)**AT Command: AT+EXT**
1318 +(% _msthash="315358" _msttexthash="248118" _mstvisible="3" %)**AT Command: AT+EXT**
1322 1322  
1323 1323  (% _mstvisible="1" %)
1324 1324  [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
... ... @@ -1329,7 +1329,7 @@
1329 1329  
1330 1330  
1331 1331  (% _mstvisible="2" style="text-align: left;" %)
1332 -(% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1329 +(% _msthash="506258" _msttexthash="387855" _mstvisible="4" %)**Downlink Command: 0xA2**
1333 1333  )))
1334 1334  
1335 1335  (% _mstvisible="1" %)
... ... @@ -1379,14 +1379,13 @@
1379 1379  PID is default set to disable (0)
1380 1380  
1381 1381  (% _mstvisible="1" style="text-align: left;" %)
1382 -(% style="color:#4f81bd" %)**AT Command:**
1379 +(% _msthash="315361" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1383 1383  
1384 1384  (% _mstvisible="1" %)
1385 1385  [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1386 1386  
1387 -
1388 1388  (% _mstvisible="1" style="text-align: left;" %)
1389 -(% style="color:#4f81bd" %)**Downlink Command:**
1385 +(% _msthash="315362" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1390 1390  
1391 1391  (% _mstvisible="1" %)
1392 1392  * 0xA800  **~-~->** AT+PID=0
... ... @@ -1401,7 +1401,7 @@
1401 1401  Feature: Set device password, max 9 digits
1402 1402  
1403 1403  (% _mstvisible="1" style="text-align: left;" %)
1404 -(% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1400 +(% _msthash="315364" _msttexthash="295009" _mstvisible="3" %)**AT Command: AT+PWORD**
1405 1405  
1406 1406  (% _mstvisible="1" %)
1407 1407  [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
... ... @@ -1412,7 +1412,7 @@
1412 1412  
1413 1413  
1414 1414  (% _mstvisible="2" style="text-align: left;" %)
1415 -(% style="color:#4f81bd" %)**Downlink Command:**
1411 +(% _msthash="506261" _msttexthash="298038" _mstvisible="4" %)**Downlink Command:**
1416 1416  )))
1417 1417  
1418 1418  (% _mstvisible="1" %)
... ... @@ -1431,7 +1431,7 @@
1431 1431  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1432 1432  
1433 1433  (% _mstvisible="1" style="text-align: left;" %)
1434 -(% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1430 +(% _msthash="315366" _msttexthash="289120" _mstvisible="3" %)**AT Command: AT+DISAT**
1435 1435  
1436 1436  (% _mstvisible="1" %)
1437 1437  [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
... ... @@ -1438,12 +1438,11 @@
1438 1438  
1439 1439  
1440 1440  (% _mstvisible="1" style="text-align: left;" %)
1441 -(% style="color:#4f81bd" %)**Downlink Command:**
1437 +(% _msthash="315367" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1442 1442  
1443 1443  (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1444 1444  No downlink command for this feature.
1445 1445  
1446 -
1447 1447  (% _mstvisible="1" style="text-align: left;" %)
1448 1448  == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1449 1449  
... ... @@ -1451,20 +1451,17 @@
1451 1451  Feature: Set device to sleep mode
1452 1452  
1453 1453  (% _mstvisible="1" style="text-align: left;" %)
1454 -(% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1449 +(% _msthash="315370" _msttexthash="289783" _mstvisible="3" %)**AT Command: AT+SLEEP**
1455 1455  
1456 1456  (% _mstvisible="1" %)
1457 1457  [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1458 1458  
1459 -
1460 1460  (% _mstvisible="1" %)
1461 -(% style="color:#4f81bd" %)**Downlink Command:**
1455 +(% _msthash="315371" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1462 1462  
1463 1463  (% _mstvisible="1" %)
1464 1464  * There is no downlink command to set to Sleep mode.
1465 1465  
1466 -
1467 -
1468 1468  (% _mstvisible="1" %)
1469 1469  == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1470 1470  
... ... @@ -1472,19 +1472,17 @@
1472 1472  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1473 1473  
1474 1474  (% _mstvisible="1" %)
1475 -(% style="color:#4f81bd" %)**AT Command:**
1467 +(% _msthash="315373" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1476 1476  
1477 1477  (% _mstvisible="1" %)
1478 1478  [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1479 1479  
1480 -
1481 1481  (% _mstvisible="1" %)
1482 -(% style="color:#4f81bd" %)**Downlink Command:**
1473 +(% _msthash="315374" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1483 1483  
1484 1484  (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1485 1485  0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1486 1486  
1487 -
1488 1488  (% _mstvisible="1" %)
1489 1489  == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1490 1490  
... ... @@ -1503,15 +1503,14 @@
1503 1503  (% _mstvisible="1" %)
1504 1504  (((
1505 1505  (% _mstvisible="2" %)
1506 -(% style="color:#4f81bd" %)**AT Command:**
1496 +(% _msthash="506265" _msttexthash="137488" _mstvisible="4" %)**AT Command:**
1507 1507  )))
1508 1508  
1509 1509  (% _mstvisible="1" %)
1510 1510  [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1511 1511  
1512 -
1513 1513  (% _mstvisible="1" %)
1514 -(% style="color:#4f81bd" %)**Downlink Command:**
1503 +(% _msthash="315376" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1515 1515  
1516 1516  (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1517 1517  0x28 01 ~/~/ Same As AT+SYNCMOD=1
... ... @@ -1519,7 +1519,6 @@
1519 1519  (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1520 1520  0x28 00 ~/~/ Same As AT+SYNCMOD=0
1521 1521  
1522 -
1523 1523  (% _mstvisible="1" %)
1524 1524  == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1525 1525  
... ... @@ -1527,19 +1527,17 @@
1527 1527  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1528 1528  
1529 1529  (% _mstvisible="1" %)
1530 -(% style="color:#4f81bd" %)**AT Command:**
1518 +(% _msthash="315380" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1531 1531  
1532 1532  (% _mstvisible="1" %)
1533 1533  [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1534 1534  
1535 -
1536 1536  (% _mstvisible="1" %)
1537 -(% style="color:#4f81bd" %)**Downlink Command:**
1524 +(% _msthash="315381" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1538 1538  
1539 1539  (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1540 1540  0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1541 1541  
1542 -
1543 1543  (% _mstvisible="1" %)
1544 1544  == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1545 1545  
... ... @@ -1547,19 +1547,17 @@
1547 1547  Feature: Print the sector data from start page to stop page (max is 416 pages).
1548 1548  
1549 1549  (% _mstvisible="1" %)
1550 -(% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1536 +(% _msthash="315384" _msttexthash="264953" _mstvisible="3" %)**AT Command: AT+PDTA**
1551 1551  
1552 1552  (% _mstvisible="1" %)
1553 1553  [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1554 1554  
1555 -
1556 1556  (% _mstvisible="1" %)
1557 -(% style="color:#4f81bd" %)**Downlink Command:**
1542 +(% _msthash="315385" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1558 1558  
1559 1559  (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1560 1560  No downlink commands for feature
1561 1561  
1562 -
1563 1563  (% _mstvisible="1" %)
1564 1564  == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1565 1565  
... ... @@ -1567,19 +1567,17 @@
1567 1567  Feature: Print the last few data entries
1568 1568  
1569 1569  (% _mstvisible="1" %)
1570 -(% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1554 +(% _msthash="315388" _msttexthash="288522" _mstvisible="3" %)**AT Command: AT+PLDTA**
1571 1571  
1572 1572  (% _mstvisible="1" %)
1573 1573  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1574 1574  
1575 -
1576 1576  (% _mstvisible="1" %)
1577 -(% style="color:#4f81bd" %)**Downlink Command:**
1560 +(% _msthash="315389" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1578 1578  
1579 1579  (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1580 1580  No downlink commands for feature
1581 1581  
1582 -
1583 1583  (% _mstvisible="1" %)
1584 1584  == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1585 1585  
... ... @@ -1587,20 +1587,17 @@
1587 1587  Feature: Clear flash storage for data log feature.
1588 1588  
1589 1589  (% _mstvisible="1" %)
1590 -(% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1572 +(% _msthash="315392" _msttexthash="311415" _mstvisible="3" %)**AT Command: AT+CLRDTA**
1591 1591  
1592 1592  (% _mstvisible="1" %)
1593 1593  [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1594 1594  
1595 -
1596 1596  (% _mstvisible="1" %)
1597 -(% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1578 +(% _msthash="315393" _msttexthash="388193" _mstvisible="3" %)**Downlink Command: 0xA3**
1598 1598  
1599 1599  (% _mstvisible="1" %)
1600 1600  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1601 1601  
1602 -
1603 -
1604 1604  (% _mstvisible="1" %)
1605 1605  == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1606 1606  
... ... @@ -1609,7 +1609,7 @@
1609 1609  
1610 1610  
1611 1611  (% _mstvisible="1" %)
1612 -(% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1591 +(% _msthash="315395" _msttexthash="334256" _mstvisible="3" %)**AT Command: AT+PNACKMD**
1613 1613  
1614 1614  (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1615 1615  The default factory setting is 0
... ... @@ -1619,13 +1619,11 @@
1619 1619  (% _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
1620 1620  
1621 1621  (% _mstvisible="1" %)
1622 -(% style="color:#4f81bd" %)**Downlink Command: 0x34**
1601 +(% _msthash="315397" _msttexthash="383981" _mstvisible="3" %)**Downlink Command: 0x34**
1623 1623  
1624 1624  (% _mstvisible="1" %)
1625 1625  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1626 1626  
1627 -
1628 -
1629 1629  (% _mstvisible="1" %)
1630 1630  = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1631 1631  
... ... @@ -1664,18 +1664,11 @@
1664 1664  (% _mstvisible="1" %)
1665 1665  (((
1666 1666  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1667 -(((
1668 1668  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:
1669 1669  [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
1670 -)))
1671 1671  
1672 -(((
1673 -
1674 -)))
1675 1675  
1676 -(((
1677 1677  A full detail test report for LHT65N on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
1678 -)))
1679 1679  
1680 1680  
1681 1681  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
... ... @@ -1684,31 +1684,34 @@
1684 1684  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1685 1685  == 6.1 How to use AT Command? ==
1686 1686  
1687 -(((
1688 -LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1689 -)))
1657 +LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1690 1690  
1659 +connect to LHT65 for using AT command, as below.
1660 +
1691 1691  [[image:image-20220530085651-1.png]]
1692 1692  
1693 1693  
1694 -**Connection:**
1664 +Connection:
1695 1695  
1696 -✓** USB to TTL GND <~-~->GND**
1666 +✓ USB to TTL GND <~-~->GND
1697 1697  
1698 -**✓ USB to TTL RXD <~-~-> D+**
1668 +✓ USB to TTL RXD <~-~-> D+
1699 1699  
1700 -**✓ USB to TTL TXD <~-~-> A11**
1670 +✓ USB to TTL TXD <~-~-> A11
1701 1701  
1702 -**✓ USB to TTL 3.3V <~-~-> D-**
1672 +✓ USB to TTL 3.3V <~-~-> D-
1703 1703  
1674 +In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1704 1704  
1705 -(((
1706 -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.
1707 -)))
1676 +access serial console for LHT65N. The AT commands are disable by default and need to enter
1708 1708  
1709 -(((
1678 +password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1679 +
1680 +user need to input password again. User can use AT+DISAT command to disable AT command
1681 +
1682 +before timeout.
1683 +
1710 1710  Input password and ATZ to activate LHT65N,As shown below:
1711 -)))
1712 1712  
1713 1713  [[image:image-20220530095701-4.png]]
1714 1714  
... ... @@ -1759,10 +1759,14 @@
1759 1759  
1760 1760  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1761 1761  
1762 -AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1735 +AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1763 1763  
1764 -AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1737 +in ms
1765 1765  
1739 +AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1740 +
1741 +in ms
1742 +
1766 1766  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1767 1767  
1768 1768  AT+NWKID: Get or Set the Network ID
... ... @@ -1926,9 +1926,6 @@
1926 1926  (% _mstvisible="1" %)
1927 1927  (((
1928 1928  (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1929 -
1930 -
1931 -(% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1932 1932  (% _mstvisible="3" %)**Package Includes**(%%):
1933 1933  )))
1934 1934  
... ... @@ -1975,10 +1975,6 @@
1975 1975  (((
1976 1976  (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1977 1977  Weight / pcs : 170g
1978 -
1979 -
1980 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1981 -
1982 1982  )))
1983 1983  
1984 1984  = 9. Reference =
... ... @@ -1985,7 +1985,6 @@
1985 1985  
1986 1986  * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1987 1987  
1988 -
1989 1989  = 10. FCC Warning =
1990 1990  
1991 1991  (% _mstvisible="1" %)

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