FCC ID: WA5WH55E Water Leak Sensor

Water Leak Sensor Model: WH55E Contents 1. Introduction..................................................3 2. Get Started................................................... 4 2.1 Parts List............................................ 4 3. Overview......................................................5 3.1 Features..............................................7 1 4. Setup Guide..................................................8 4.1 Install batteries...................................8 5. Sensor Placement.......................................14 6. Wi-Fi Configuration with gateway............ 15 6.1 Pair with Gateway............................15 6.2 Wi-Fi Connection for the Gateway..17 7. View Online Data with WS View.............. 17 8. Set Email Alerts......................................... 20 9. Specification.............................................. 22 10. Warranty Information...............................23 2 1. Introduction Thanks for purchasing this WH55E wireless multi-channel water leak detection sensor. The alarm will be triggered when water seepage is detected. The wireless signal can be received by the GW1000 Wi-Fi Gateway(sold separately) and the sensor data can be viewed on our WS View mobile application after the Wi-Fi configuration done. This device will also work with the HP2551/HP3500/HP3501 weather station(all sold separately) in the future. To ensure the best product performance, please 3 read this manual and retain it reference. for future 2. Get Started 2.1 Parts List One Multi-channel Water Leak Sensor One User Manual 4 3. Overview Figure 1: Multi-channel Water Leak Sensor 5 1 Buzzer (inside the device) 2. Battery cover 3. LED indicator 4. Dip switches for multi-channel 5. Sensor contact Table : Sensor parts identification 6 3.1 Features Detects water seepage every 3 seconds. Emits loud alarm with 90dB once triggered. High or low sensor sensitivity selectable to meet different requirements. Works with GW1000 Wi-Fi gateway (sold wifi separately) configuration on WS View application. complete the to View live sensor data on the app once wifi configuration done. Email alerts available once the gateway free Server:

device added successfully on our Ecowitt https://www.ecowitt.net. Weather Each GW1000 gateway supports to add up 7 to 4 channels water leak sensors. Channel names can be edited both on the app and Ecowitt Weather Server. Battery power level display on the WS View App 4. Setup Guide 4.1 Install batteries 1.Remove the battery door on the back of the transmitter(s) by taking off the cover, as shown in Figure 2 . 8 Figure 2: Battery installation 9 2. Before inserting the batteries, find the dip above switches battery instruction compartment and set the sensor sensitivity level and channel number:

the Sensitivity Level: To change the sensor sensitivity of detection (High or Low), change Dip Switch 3, as referenced in Figure 3. High sensitivity: The water leakage alarm will be triggered when the detected water leak capacitance value equals to or over 60PF and be muted when the value equals to or lower 50PF. 10 Low sensitivity: The water leakage alarm will be triggered when the detected water leak capacitance value equals to or over 90PF and be muted when the value equals to or lower 80PF. Channel Number: This device supports up to four sensors. To set each channel number, change Dip Switches 1 and 2 , as referenced in Figure 3. 11 Switch in down position. Switch in up position. Figure 3: Dip Switch diagram 12 3.Insert two 1.5V AAA batteries. turn on for The LED indicator will four seconds and normally flash once every 60 seconds update period). transmission sensor

(the If no LED light up or Note:

is lighted permanently, make sure the battery is inserted the correct way or a proper reset is happened. Do not install the batteries backwards. You can permanently damage the sensor. 4.Verify the correct channel number (CH) and sensor sensitivity level are

(High or Low) 13 selected. 5.Close the battery door. for the Repeat remote transmitters(sold separately), verifying each remote is on a different channel. additional 5. Sensor Placement This device can be placed at multi locations include under-the-sink cabinet in a kitchen or bathroom, near a water heater, a basements, a sump pump, a toilet, a washer, a humidifier, an AC unit, or ice-making refrigerator. 14 6. Wi-Fi Configuration with gateway If you want to view the water leak sensor data on your mobile application and receive email alerts on our weather server, you need to pair this device with our GW1000 Wi-Fi Gateway

(sold separately). 6.1 Pair with Gateway If the GW1000 has been in operation, and you have never had any WH55E multi-channel water leak sensor(s) setup before, just power up the sensor(s) and GW1000 will pick the sensor data automatically. 15 If one WH55E sensor has been hooked on GW1000 before, and you have a new WH55E sensor to replace the old one, just power off the old sensor and power on the new sensor, the gateway will pick up the new sensor data automatically. Then you may go to the Sensor ID page of the app (requires the Wi-Fi configuration done first) to Re-register or disable sensor(s) to ensure its on the correct channel you. 16 6.2 Wi-Fi Connection for the Gateway For this part, please refer to the manual of the GW1000 Wi-Fi gateway. Any question, please contact service. the customer 7. View Online Data with WS View When the Wi-Fi configuration is done, you may view leakage detection condition as well as the sensor battery level on WS view App at the live data page. 17 18 Note: It requires your phone and the gateway using the same network to view your sensor data on the WS View app. To remote monitor the sensor data, please upload the data to our free Ecowitt Weather Server: https://www.ecowitt.net. Detailed operation instructions can be found on the GW1000 manual. Any question, please feel free to contact our customer service at support@ecowitt.com 19 8. Set Email Alerts Once your device added successfully on the Ecowitt Weather server, you may set alerts for the water leak sensor(s) on the website to get email notifications. 20 21 9.Specification Power: 2X 1.5V AAA batteries(not included) Sensor Size: 95x45x22.8mm Frequency: 915/868/433Mhz(optional) Wireless transmitting range: 100M(300feet) Alarm Decibel: 90dB Sensor detecting interval: 3 seconds Sensor reporting interval: 60 seconds Waterproof level: IP44 Working temperature: 0~50C(32~122F) 22 Note: Once water seepage is detected, the device will and the ecowitt.net will push email alerts at the same time. emit 90dB alarm, 10.Warranty Information We disclaim any responsibility for any technical error or printing error, or the consequences thereof. All trademarks and patents are recognized. We provide a 1-year limited warranty on this product against manufacturing defects, or defects in materials and workmanship. 23 This limited warranty begins on the original date of purchase, is valid only on products purchased, and only to the original purchaser of this product. To receive warranty service, the purchaser must contact us for problem determination and service procedures. This limited warranty covers only actual defects within the product itself and does not cover the cost of installation or removal from a fixed installation, normal set-up or adjustments, or claims based on misrepresentation by the seller, or performance variations resulting from installation-related circumstances. 24 FCC Statement Statement according to FCC part 15.19:

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:

1.This interference. 2.This device must accept any interference received, including interference that may cause undesired operation. device may harmful cause not Statement according to FCC part 15.21:

Modifications not expressly approved by this company could void the user's authority to 25 operate the equipment. Statement according to FCC part 15.105:

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there protection guarantee against that no is 26 If the user interference to radio or in a particular interference will not occur this equipment does cause installation. harmful television reception, which can be determined by turning the equipment off and on, is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. separation between the the 27 Consult the dealer or an experienced radio/

TV technician for help. FCC ID: WA5WH55E 28

C5266091_X10_Ed.2

< Shenzhen Fine Offset Electronics Co., Ltd.>

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2020-06-22 Subject: Request for Confidentiality FCC ID: WA5WH55E To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Long-Term Confidentiality Short-Term Confidentiality NOTE 2 Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info No No No No No No No NOTE 1 NOTE 1 No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. 1/1 C5266091_X10_Ed.2 It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Henry Xu Title: Manager 1/1

ShenzhenFineOffsetElectronicsCo.,Ltd. Familymodelsdeclarationletter. 2020-07-17 We Company: Shenzhen Fine Offset Electronics Co., Ltd. Address: 2/F., Building no.3, Ping Shan Minqi Industrial Park, Xili Town, Nanshan District, Shenzhen City, China Product: Water Leak Sensor Model Name: WH55E Family Model: WH31LA All models are the same circuit and RF module, except the model name. Thanks Sincerely, Signature 2020-07-17 Name: Henry Xu Title: Manager

C5266091_X8_Ed.1 Letter of Authorization

< Shenzhen Fine Offset Electronics Co., Ltd.>

Company: Shenzhen Fine Offset Electronics Co., Ltd. Address: 2/F., Building no.3, Ping Shan Minqi Industrial Park, Xili Town, Nanshan District, Shenzhen City, China Product Name: Water Leak Sensor Model Number: WH55E, WH31LA FCC Identifier: WA5WH55E We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Henry Xu Date: 2020-06-22 Title: Manager Signature of applicant:

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