M5ZWOW15.231 (e) Wireless Weather Station Transmitter

FCC ID: M5ZWOW Installation and Operation Instructions for the Wireless Temperature Sensor. Point Six, Inc. Wireless Temperature Sensor Model WOW Installation and Operation Instructions The WOW wireless temperature sensor transmits both a digital temperature and a unique serial number to a 418 MHz receiver. The WOW is enclosed in a high impact ABS enclosure for direct surface mounting in the environment to be measured. WOW is battery operated Application: Apply the sensor to the surface to be monitored with double-sided adhesive tape. Make sure that the side labeled with FCC ID is visible and away from any metal surfaces. Service Function: The wireless temperature sensor has an installation mode switch. A momentary push of this switch will start the convert/transmit cycles. When new and until this button is pushed the WOW will not transmit. The WOW will transmit a special installation status mark in the data packet immediately after the installation/start switch is pushed. After the start a push of the installation switch will result in the immediate transmission of temperature, ID and installation status mark. Battery: A 3.0-3.6 Volt lithium battery powers the WOW wireless temperature sensor. The battery will last for more than 10 years in the idle state (as shipped from the manufacturer). The WOW will transmit data for as long as 7 years at a rate of once each minute once started. The WOW is completely covered with a water resistant rubber coating to protect the electronics from the environment and condensation. The user cannot replace the battery. The WOW may be placed in a quiescent state (battery life greater than 10 years) by holding the installation switch closed for more than 12 seconds. THIS DEVICE COMPLIES WITH 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 UNDESERED OPERATION FCC ID: M5ZWOW MADE IN USA Wireless Temperature Sensor Data Format The Point Six, Inc. 418 MHz wireless temperature transmitters require a compatible receiver with the ability to receive, error check and provide RS232 and RS422/485 interface. This document describes the data format provided by the HA8-wow 418 MHz. Receiver. The transmit packet from a receiver is approximately 15 milliseconds in duration and consists of 13 bytes of data: 1-byte ID/Mode field 8-byte serial number 2-byte temperature data 2-byte CRC-16 error check The HA8-wow receiver processes this packet. The receiver performs a CRC-16 error check on the packet. If the data is not accurate it is discarded. When a packet is received that is error free it is converted to a 29-character packet and transmitted out the serial port at 19,200 Baud. The data is transmitted serially in ASCII Hex format and terminated with a CR character. This format requires two bytes for each byte of data; 14 data bytes x 2=28 plus the CR is 29 characters The resulting binary data format of the packet is: 1-byte ID fieldthis field will contain a byte whose LSBit indicates the service state of the transmitter, 0=normal, 1=service mode. 8-byte serial#this field contains the serial number of the 1-Wire sensor. 2-byte temperaturethis field contains the temperature data stored MSB first in two's compliment 16-bit form of 1/16 deg. C units. 2-byte CRC-16this is the originally received data packet CRC as described above. 1-byte checksumthe checksum is a mod 256 sum of all the ASCII character values in the response but does not include the CR Example: D4287F44040000005A01602ED477<CR> This field is the mode indicator, the LS-bit which indicates the service state of the transmitter, 0=normal, 1=service mode. D4287F44040000005A01602ED477<CR> This field is the unique serial number of the 1-Wire temperature sensor. D4287F44040000005A01602ED477<CR> This is the temperature data field; two's compliment 16-bit data stored MSB first in 1/16 deg. C units. The value shown is +22 Deg. C. D4287F44040000005A01602ED477<CR> This field is the CRC-16 error check as was originally received and checked. This CRC is over the first 11 bytes of the packet starting with the mode flags and ending with inclusion of the temperature data. D4287F44040000005A01602ED477<CR> This field is the mod 256 sum of all the ASCII character values in the response but does not include the <CR>. D4287F44040000005A01602ED477<CR> This is the CR terminator, 0Dhex. FCC Radio Frequency Interference Statement Wireless Temperature Sensor FCC ID: M5ZWOW NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15, Subpart B, of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause interference to radio communications. The limits are designed to provide reasonable protection against such interference in a residential situation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: ! Reorient or relocate the receiving antenna of the affected radio or television ! Increase the separation between the equipment and the affected receiver. ! Connect the equipment and the affected receiver to power outlets on separate circuits. ! Consult the dealer or an experienced radio/TV technician for help. MODIFICATIONS Changes or modifications not expressly approved by Point Six Inc . could void the user's authority to operate the equipment.

dBi Corporation Point Six, Inc. 383 Codell Drive Lexington, KY. 40509, USA August 1, 2000 Federal Communications Commission Equipment Approval Services re: FCC ID: M5ZWOW Gentlemen: Enclosed please find the Point Six, Inc. application for FCC Certification of the Point Six Wireless Temperature Sensor, Model WOW. The test data submitted as part of this application were prepared by the dBi Corporation located at 131 French Ave, Winchester, KY. dBi Corporation has A2LA accreditation for EMC testing. Certificate number 1012.01 is valid to October 31, 2001. The facility used for radiated measurements is owned by Lexmark International, Inc. and was recognized by the Commission as meeting the requirements of section 2.948 of the Rules via a letter dated August 20, 1998. We submit the information in this application pursuant to the requirements of section 2.1033 and Part 15 of the Federal Communications Commission Rules and Regulations. We request that the Commission grant equipment authorization as soon as it is determined that the attached Application for Equipment Authorization is acceptable. We further request that the schematics and block diagrams of the Point Six Temperature Sensor, Model WOW be treated as confidential information as provided for in 47 CFR Section 0.459 (d) (2). Point Six considers this information to be a trade secret. The schematics and block diagrams are in Word files (included with this application) and are listed as 00dBi019(Schematics) and 00dBi019(Block-Diag) respectively. Thank you in advance for your assistance. If further information is required concerning this application, please do not hesitate to contact me. Sincerely John I. Compton President, Point Six, Inc. dBi Corporation FCC ID: M5ZWOW List of Exhibits 1. Cover Letter, Word file 00dBi019(Cover-Ltr) 2. FCC 731 Form, Word file 00dBi019(731) 3. Test Report, Word file 00dBi019(Test-Report) 4. FCC Label Information, Word file 00dBi019(FCC-Label) 5. Operational Description, Word file 00dBi019(Op-Discrp) 6. Functional Block Diagram (Confidential), Word file 00dBi019(Block-Diag) 7. Schematics (Confidential), Word file 00dBi019(Schematics) 8. Transmitter Frequency Stability Measurements, Word file 00dBi019(Trans-Freq-Stb) 9. Users Manual, Word file 00dBi019(User's Man) 10. External Pictures, Word file 00dBi019(External-Pics) 11. Internal Pictures, Word file 00dBi019(Internal-pics) 12. Setup Pictures, Word file 00dBi019(Setup-pics)

FCC ID: M5ZWOW Wireless Temperature Sensor, Model WOW Exterior Overall View

FCC ID: M5ZWOW FCC label and location of label on the product. THIS DEVICE COMPLIES WITH 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 UNDESERED OPERATION FCC ID: M5ZWOW MADE IN USA FCC ID Label shown on the bottom of Wireless Temperature Sensor, Model WOW

FCC ID: M5ZWOW Top View of the Wireless Temperature Sensor Board. FCC ID: M5ZWOW Bottom View of the Wireless Temperature Sensor Board.

FCC ID: M5ZWOW Operational description of the Wireless Temperature Sensor, Model WOW Description of the circuit functions ground system and antenna of the Point Six, WOW Wireless temperature transmitter: The WOW wireless temperature sensor is a lithium battery operated microprocessor based 418 MHz. transmitters that transmit both digital temperature data and a unique 64-bit serial number. The microprocessor is brought up from a power down state every 4 seconds by a DS2417 time of day clock interrupt output. The temperature is measured with a DS18B20 digital temperature sensor, which has a unique 64-bit serial number that can be read by the microprocessor. The microprocessor counts the 4-second interrupt cycles from the DS2417 clock until the transmit period has expired. The microprocessor then reads the temperature from the previous temperature conversion, combines it with the serial number data and transmits the entire data packet serially with a Linx Technologies TXM-418- LC-R 418 MHz. Transmitter module. The microprocessor then starts another temperature conversion cycle and powers down into a quiescent state to wait for the next interrupt from the DS2417 clock. The PC board bottom layer is a ground plane and the antenna is a 1/4-wave loop that has been hot upset into the ABS cover to form a spiral. The entire electronics is coated with a rubber conformal coating to protect it from condensation. The ground plane (bottom layer) is not coated.

Test Report FCC ID: M5ZWOW EUT: Wireless Temperature Sensor, Model WOW Manufactured by: Point Six, Inc. 383 Codell Drive Lexington, KY. 40509 Measurements According to: ANSI C63.4 (1992) Measurement Date: June 6 and 14, 2000 Testing Performed at: Lexmark International, Inc. Registered Open Field Test Site Development Lab. 740 New Circle Road, NW. Lexington, KY. 40511-1876 Accreditation Status of Test Facility: The Lexmark site was recognized by the Commission as meeting the requirements of section 2.948 of the FCC Rules via a letter dated August 20, 1998 and is presently on file with the Commission. Test Report FCC ID: M5ZWOW Testing Results: Harmonic Freq. (MHz) Me te r Peak dB Me te r Average dB Ant & Cable Fact o rs dB/ uV/ m Total Peak dB/ uV/ m Limit Peak dB/ uV/ m Total Average dB/ uV/ m Limit Average dB/ uV/ m 141861.0025.5019.2880.2892.3044.7872.30 283612.00-25.1637.16 QP 46.00 QP -- 3125425.0012.4624.6049.6074.0037.0654.00 4167218.9712.0026.5045.4774.0038.5054.00 5209030.6914.7528.1058.7974.0042.8554.00 6250820.8712.5529.8050.6774.0042.3554.00 7292620.549.2031.5052.0474.0040.7054.00 83344*37.6026.5031.9069.5074.0058.4064.00* 93762*37.5326.3532.4069.9374.0058.7564.00* 104180*34.4626.1032.9067.3674.0059.0064.00* * Ambient noise, measured at 1 meter from product; limit would be 64 dB at this distance. Sample Calculation: From FCC Rules, Paragraph 15.231(e) Frequency:260-470 MHz. Amplitude:1500-5000 uV/m For 418 MHz. L(limit)=((418-260)/(470-260))(5000-1500)+1500 L = 4133 uV/m L(dB/uV/m) = 20 Log (4133) L = 72.3 dB/uV/m (AVG) L(Peak) = Avg. + 20 dB L(Peak) = 72.3 + 20 = 92.3 dB/uV/m

Dear Mr. Curtis: The Point Six, Inc. wireless temperature transmitter transmits a 15-16 millisecond packet once each 600-10 seconds. The packet consists of transmitter-on/transmitter-off timing that represents the serial number and temperature data. The duty cycle is approximately 50%. The packet time can vary with serial number between 14-16 milliseconds. The packet data is controlled by a microprocessor whose timing is based on a ceramic resonator that is very stable. The packet below (figure #2) illustrates a typical data packet, the worst case, 16 milliseconds, cannot be shown because serial number would have to be forced to make this so. Figure #1 illustrates the overall timing; a packet is sent each 10 seconds in this worst case. The battery used during the tests was new and was a standard 3 Volt Lithium cell. The battery is a 3 Volt CR Lithium chemistry, which has a flat discharge curve from new to about 90% used. In this application the battery requires about 3 years to discharge to the point that it cannot be used. The battery was used for no other purpose and had operated in the test unit for only a few hours when the test was performed. I have filled in and signed the certification agreement; I will send it to you via. FedX for delivery tomorrow morning. The label will be Flexcon 2 mil PM200S mylar with a Flexcon 1 mil PM100C Polyester laminate. Our address has changed and we have not informed the FCC. We will send a letter to the FCC informing them that our address has changed. I will see that we do it promptly. John I. Compton President, Point Six, inc. Point Six , Inc. 383 Codell Drive Lexington, Ky. 40509 606-266-3606 Fax 271-0702 Figure #1 Overall timing Figure #2 Packet Timing

FCC ID: M5ZWOW Setup pictures of the Point Six Wireless Temperature Sensor, Model WOW FCC ID: M5ZWOW Setup pictures of the Point Six Wireless Temperature Sensor.