LEZYNE 73501-A1 Pro Cadence Sensor User Guide

June 10, 2024
Lezyne

LEZYNE 73501-A1 Pro Cadence Sensor

MOUNT YOUR PRO CADENCE & SPEED SENSOR

NOTE: Remove the plastic battery cover before use. No magnets required.

Pro Speed Sensor

  1. Align the rubber shim with the bottom of the sensor.
  2. Securely attach the Pro Speed Sensor to your hub using one of the supplied 0-rings The 0-ring must fit tightly around the hub so the sensor does not move.

Pro Cadence Sensor

  1. Align the rubber shim with the bottom of the sensor.
  2. Securely attach the Pro Cadence Sensor to the inside of your crankarm using one of the supplied 0 -rings. The 0-ring must fit tightly around the crankarm so the sensor does not move.

GETTING STARTED

Both sensors feature a dual channel Bluetooth output. This allows for a simultaneous connection to two devices, which is ideal for pairing with both a head unit and indoor smart trainer at the same time.
The Pro Cadence Sensor and Pro Speed Sensor can be paired with Lezyne GPS devices and most fitness apps, and they are compatible with Bluetooth enabled smart phones.
To get started with the Pro Cadence and Pro Speed Sensor, follow the pairing settings of the device you want to connect the Lezyne sensors with.The wheel and/or crankarm that the Lezyne sensors are attached to may need to be rotated a few times to wake the sensors up. For additional pairing information, please reference the user manual of the device you are attempting to connect the Lezyne sensors to.

INPUT WHEEL CIRCUMFERENCE

Pro Speed Sensor only: For the most accurate speed data, your wheel circumference must be programmed into the connected device. Refer to the user manual of the device the Pro Speed Sensor is paired with for instructions on how to input the wheel circumference.

HOW TO CHANGE BATTERY

NOTE: Remove the plastic battery cover before use,

  1. Use a coin to open battery coverE) by turning counterclockwise **3**.
  2. Replace battery CR2032 **2** and make sure the sealing o-ring **1** is in the groove to ensure water resistance. 3.Press in the cover back and turn the cover clockwise to CLOSE.

PAIR THE SENSOR WITH A LEZYNE GPS

Lezyne GPS
▼Main Menu
▼ Sensors
Speed .. ▼ Scan BTLE
or———
▼ Candence  ▼ Scan BTLE

SPECIFICATION

Pro Speed Sensor
Pro Cadence Sensor
Size: W32.8xH36.5x014mm
Weight: 17g (with battery)
Water Resistance: 1 m / 3ft Battery Life (approx): 250 hours System
Compatibility: Bluetooth FCC ID: 2AD4S-PROSV104 IC ID: 20084-PROSVl 0

Wheel Size and Circumference

The wheel size can be found on the side of the tire. This is not an exact list but a general guide. More specific wheel calculators can be found online. Or you can manual measured
http://www.bikecale.com/wheel_size_math

Wheel Tire CM
700c/29er 20mm 208
23mm 209.9
25mm 211.1
28mm 213
650c 20mm 192
23mm 193.8
25mm 195.1
28mm 197
20inch Recumbent 20mm 154.3
23mm 156.1
25mm 157.4
28mm 159.3
32m 161.8
35m 163.7
1.00 inch 157.6
1.25 inch 161.6
1 .50 inch 165.6
1.75 inch 169.6
1.90 inch 172
1.95 inch 172.8
2.00 inch 173.6
650b / 27 . 5 20mm 196
23mm 197.9
25mm 199.2
28mm 201.1
32mm 203.6
35mm 205.5
38mm 207.3
44mm 211.1
50mm 214.9
56mm 218.7
1.00 inch 199.4

203.4
1.50 inch| 207.4
1.75 inch| 211.4
1.90 inch| 213.8
1.95 inch| 214.6
2.00 inch| 215.4
2.10 inch| 217
2.125 inch| 217.4
2.20 inch| 218.6
2.25 inch| 219.4
2.30 inch| 220.2
2.35 inch| 221
2.40 inch| 221.6
197.6
38mm| 199.5
44mm| 203.3
50mm| 207
56mm| 210.8
1.00 inch| 191.6
1.25 inch| 195.6
1.50 inch| 199.6
1.75 inch| 203.5
1.90 inch| 205.9
1.95 inch| 206.7
2.00 inch| 207.5
2.10 inch| 209.1
2.125 inch| 209.5
2.20 inch| 210.7
2.25 inch| 211.5
2.30 inch| 212.3
2.35 inch| 213.1
2.40 inch| 213.7

FEDERAL CDMMUNICATIDNS CDMMISSIDN INTERFERENCE STATEMENT

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 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 instructions, 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:

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

CAUTION:

Any changes or modifications not expressly. approved by the grantee of this device could void the user’s authority to operate the equipment.
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 undesired operation.

RF exposure warning

This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

Canada, Industry Canada (IC) Notices

This device complies with Canada license-exempt ASS standard(s) .
Operation is subject to the following two conditions: (1 I this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Radio Frequency (RF) Exposure Information

The radiated output power of the Wireless Device is below the Industry Canada (IC) radio frequency exposure limits.
The Wireless Device should be used in such a manner such that the potential for human contact during normal operation is minimized.
This device has also been evaluated and shown compliant with the IC RF Exposure limits under mobile exposure  conditions. (antennas are greater than 20cm from a person’s body).

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