FCC ID: XQC-WST621V2 Flood Temperature Sensor

WST-621v2 Flood and Freeze Sensor patent pending Component Identification (Optional Accessories) Installation Manual Specifications External Sensor Adapter / Mounting Bracket 3. To learn in as a flood sensor, press and hold the Learn Button

(SW1) for 1 - 2 seconds, then release. A single short on/off blink at 1 second confirms flood learn is initiated. The LED will remain solid ON during the learn transmission. The Flood sensor function enrolls as Loop 1 of the Flood S/N. Repeat as required. 319.5MHz Frequency:

Operating Temperature: 32 120F (0 49C) Operating Humidity:

Battery:

Battery life:

5 95% RH non condensing One 3Vdc lithium CR2450 (620mAH) Up to 8 years Detect Freeze at 41F (5C) restores at 45F (7C) Detect a minimum of 1/64th in of water Compatible with Honeywell receivers Supervisory signal interval: 64 min(approx.) Package Contents 1x Flood and Freeze Sensor 1x Installation Manual 1x CR2450 Battery Optional Accessories (included in select kits) 1x External Sensor Adapter / Mounting Bracket 2x Mounting Screws 1x Water Detection Rope Component Identification Flood and Freeze Sensor CR2450 Battery Water Detection Rope Mounting Screws

(not shown) OPERATION The WST-621 sensor is designed to detect water across the gold probes and will alert immediately when present. The Freeze sensor will trigger when the temperature is below 41F (5C) and will send a restoral at 45F (7C). ENROLLING To enroll the sensor, set your panel into sensor learn mode. Refer to your specific alarm panel instruction manual for details on these menus. 1. On the WST-621 locate the pry points on opposite edges of the sensor. Carefully use a plastic pry tool or standard slot head screwdriver to remove the top cover. (Tools not included) Pry Points 2. Insert the CR2450 battery with the (+) symbol facing up, if not already installed. Insert battery this way Learn Button (SW1) Light Emitting Diode (LED) 4. To learn in as a freeze sensor, press and hold the Learn Button

(SW1) for 2 - 3 seconds, then release. A single short on/off blink at 1 second plus a double on/off blink at 2 seconds confirms freeze learn is initiated. The LED will remain solid ON during the learn transmission. The Freeze sensor function enrolls as Loop 1 of the Freeze S/N. Repeat as required. 5. After successful enrollment, verify the gasket in the top cover is properly seated, then snap the top cover onto the bottom cover aligning the flat sides. Inspect the seam all the way around the edge of the device to ensure it is completely sealed. Gasket Note: Alternately, the 7 digit serial numbers printed on the back of each unit can be manually entered into the panel. For 2GIG systems the equipment code is 0637 Testing the Unit After successful enrollment, a test transmission sending current states can be initiated by pressing and immediately releasing the Learn Button (SW1), with the top cover open. The LED will remain solid ON during the button-initiated test transmission. With the unit fully assembled and sealed, placing wet fingers on any two probes will trigger a flood transmission. Note the LED will not illuminate for a wet flood test and remains OFF during all normal operation. PLACEMENT Place the flood detector anywhere that you wish to detect a flood or freezing temperature, such as under a sink, in or near a hot water heater, a basement or behind a washing machine. As a best practice send a test transmission from the desired placement location to ensure the panel can receive it. USING OPTIONAL ACCESSORIES The optional accessories enhance the Flood and Freeze Sensor installation by allowing additional installation locations, mounting on vertical surfaces such as walls or cabinet interiors with the External Sensor Adapter / Mounting Bracket and included screws. The Water Detection Rope can be routed down and across the floor covering a larger detection area. The length of the Water Detection Rope jacket is the detection area. Setup 1. Be sure to complete all enrollment steps before installing optional accessories. 2. Plug the Water Detection Rope into the socket located on the end of the External Sensor Adapter / Mounting Bracket. 3. Wrap the Water Detection Rope around the strain relief / retension posts on the back of the External Sensor Adapter / Mounting Bracket to prevent the rope from being inadvertantly unplugged. 4. Use screws to secure the External Sensor Adapter / Mounting Bracket, if desired. 5. Align the flat sides of the Flood and Freeze Sensor with the sides of the External Sensor Adapter / Mounting Bracket. Then snap the sensor into the bracket esuring the sensor is fully seated and the three retention tabs are fully engaged. 6. Route the length of the Water Detection Rope across the horizontal surface(s) to be monitored for water. Notes:

Up to ten (10) Water Detection Rope sensors can be chained together to further extend the detection area(s). Once water detection occurs using the Water Detection Rope, it may take several hours for the rope to sufficiently dry and a restore signal to be sent. Adequate ventilation will speed the drying process. Improper connections between the WST-621 Flood and Freeze Sensor, the External Sensor Adapter / Mounting Bracket, and the Water Detection Rope can prevent flood detection, or cause false flood restore. Always verify connections are secure. REPLACING THE BATTERY When the battery is low a signal will be sent to the control panel. To replace the battery:

1. On the WST-621 locate the pry points on opposite edges of the sensor, carefully use a plastic pry tool or standard slot head screwdriver to remove the top cover. (Tools not included) 2. Carefully remove the old battery. 3. Insert the new CR2450 battery with the (+) symbol facing up. 4. Verify the gasket in the top cover is properly seated, then snap the top cover onto the bottom cover, aligning the flat sides. Inspect the seam all the way around the edge of the device to ensure it is completely sealed. FCC COMPLIANCE STATEMENT This equipment has been tested and found to comply with the limits for Class B digital devices, pursuant to Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference and

(2) this device must accept any interference received, including interference that may cause undesired operation. These limits are designed to provide reasonable protection against 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 instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Re Increase the separation between the equipment and receiver Connect the equipment to an outlet on a different circuit from orient or relocate the receiving antenna the receiver Consult the dealer or an experienced radio/TV contractor for help. Warning: Changes or modifications not expressly approved by Ecolink Intelligent Technology Inc. could void the users authority to operate the equipment. This device complies with Industry Canada licence exempt RSS standard(s). Operation is subject to the following two conditions:

(1) this device may not cause interference, and

(2) this device must accept any interference, including interference that may cause undesired operation of the device. Cet appareil est conforme la norme d'Industrie Canada exempts de licence RSS. Son fonctionnement est soumis aux deux conditions suivantes:

(1) cet appareil ne peut pas provoquer d'interfrences, et

(2) cet appareil doit accepter toute interfrence, y compris les interfrences qui peuvent causer un mauvais fonctionnement de la dispositif. FCC ID: XQC-WST621V2 IC: 9863B-WST621V2 WARRANTY Ecolink Intelligent Technology Inc. warrants that for a period of 5 years from the date of purchase that this product is free from defects in material and workmanship. This warranty does not apply to damage caused by shipping or handling, or damage caused by accident, abuse, misuse, misapplication, ordinary wear, improper maintenance, failure to follow instructions or as a result of any unauthorized modifications. If there is a defect in materials and workmanship under normal use within the warranty period Ecolink Intelligent Technology Inc. shall, at its option, repair or replace the defective equipment upon return of the equipment to the original point of purchase. The foregoing warranty shall apply only to the original buyer, and is and shall be in lieu of any and all other warranties, whether expressed or implied and of all other obligations or liabilities on the part of Ecolink Intelligent Technology Inc. neither assumes responsibility for, nor authorizes any other person purporting to act on its behalf to modify or to change this warranty. The maximum liability for Ecolink Intelligent Technology Inc. under all circumstances for any warranty issue shall be limited to a replacement of the defective product. It is recommended that the customer check their equipment on a regular basis for proper operation. 2023 Ecolink Intelligent Technology Inc. Ecolink Intelligent Technology Inc. 2055 Corte Del Nogal Carlsbad CA 92011 855-632-6546 PN WST-621v2 R2.00 REV DATE:

08/23/2023 patent pending

07-20-2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 FCC ID: XQC-WST621V2 Subject: Attestation Statements pursuant to Part 2.911 (d)(5)(i) Ecolink Intelligent Technology at 2055 Corte Del Nogal, CA 92011 certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules and according to FCC 22-84 and KDB 986446. Sincerely, Jay Stone Director of Engineering Ecolink Intelligent Technology 2055 Corte Del Nogal, Carlsbad, CA 92011 1 The Commissions Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commissions website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes covered equipment. https://www.fcc.gov/supplychain/coveredlist

07-20-2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 FCC ID: XQC-WST621V2 Subject: Attestation Statements pursuant to Part 2.911 (d)(5)(ii) Ecolink Intelligent Technology, Inc.(the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List(as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing covered equipment. Sincerely, Jay Stone Director of Engineering Ecolink Intelligent Technology 2055 Corte Del Nogal, Carlsbad, CA 92011

07-20-2023 Attention: Application Examiner RE:

Request for Confidentiality Applicant: Ecolink Intelligent Technology FCC ID: XQC-WST621V2 To Whom It May Concern:

Request is hereby submitted by Ecolink Intelligent Technology to withhold permanently from public review certain portions of the application for equipment certification for the referenced FCC identifiers. This request for confidentiality is made pursuant to 47 CFR 0.457(d) and 0.459 of the FCC Rules. In particular, the following sections of the application are to be kept permanently confidential:

Schematics Detailed Block Diagrams Detailed Operational/Functional Description Ecolink Intelligent Technology has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the permanently confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us. The information contained in the confidential exhibits listed above is not available to the public. Sincerely, Jay Stone Director of Engineering Ecolink Intelligent Technology 2055 Corte Del Nogal, Carlsbad, CA 92011

(1)

07-20-2023 CETCB 114 Olinda Drive Brea, CA 92823 Gentlemen:

This is a letter of authorization to accept Compatible Electronics, Inc., sp ecifically including the employees of Compatible Electronics, as an Agent for Ecolink Intelligent Technology, 2055 Corte Del Nogal, Carlsbad, CA 92011, for a period of one year, to sign applications before the Commission on our behalf, to make representations to you on our behalf, and to receive and exchange data between our company and the Commission in connection with certification of the following Ecolink Intelligent Technology product:

Model: WST-621v2 FLOOD TEMPERATURE SENSOR under FCC Docket Number 20780 and General Docket Number 80-284 pursuant to Part l5 of FCC Rules and Regulations. Please also accept this letter as an attestation that neither Ecolink Intelligent Technology nor any of its officers, directors, or persons holding 5% or more of the outstanding stock or shares, voting or non-voting, have been denied federal benefits under section 5301 of act of 1988,21 U.S.C. 853(a). In addition, Ecolink the Anti-Drug-Abuse n if , Intelligent Technology will notify the Federal Communications Commissio at any time, the situation changes causing Ecolink Intelligent Technology to be denied federal benefits. If you have any further questions or need additional information, please feel free to give me a call at (855)432-6546. Sincerely, Jay Stone Director of Engineering Ecolink Intelligent Technology 2055 Corte Del Nogal, Carlsbad, CA 92011

1 07-20-2023 Compatible Electronics TCB 114 Olinda Drive Brea, California 92823 Subject: TCB application submittal Gentlemen:

We, Ecolink Intelligent Technology, would like to declare that the application being submitted for the device with FCC ID: XQC-WST621V2, has not been submitted to another TCB or FCC for certification. If you have any questions, please do not hesitate to contact us at (855)432-6546. Sincerely, Jay Stone Director of Engineering Ecolink Intelligent Technologies

07-20-2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 FCC ID: XQC-WST621V2 Subject: Attestation Statement pursuant to Part 2.911 (d)(7) Ecolink Intelligent Technology, Inc. applicant, as of the date of this filing, will also serve as the U.S. agent for service of process for the above reference FCC ID as required in Part 2.911(d)(7). The applicant acknowledges that they will maintain an agent for service of process for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the agent information changes. US Agent Company Name/Applicant: Ecolink Intelligent Technology, Inc. Contact Name: Jay Stone Address: 2055 Corte Del Nogal, Carlsbad, CA 92011 Telephone Number: (855)432-6546 E-Mail: jay@discoverecolink.com FRN: 0019081256 Sincerely, Ecolink Intelligent Technology, Inc. Jay Stone Director of Engineering jay@discoverecolink.com