AlterLock Gen3


AlterLock has evolved even further.
We’ve retained the concept of movement detection alarms and tracking features, while enhancing transmission area, device tracking performance, durability, and uptime. With riders and cyclists in mind, we’ve modernized the functionality everyway conceivable.
The advanced AlterLock Gen3 system bolsters sense of security and amplifies the joy of riding to a new level.

For more information about this product, please visit this page.

Service Agreement
A service contract is required to use the data transmission and other functions of the AlterLock Gen3 device.

  • Notification of Bluetooth out of range, location tracking
  • Obtaining location information through periodic transmission
  • Crash detection and SMS notification to emergency contacts
  • Manage up to 3 devices with one service account with no additional charge

Please check this page for service agreement.

Shipping and handling charges
Goods are shipped from Japan.
International delivery of goods may be subject to customs clearance and additional charges.
VAT is included in the product price.
Duties, various fees and taxes may apply at time of delivery, depending on laws and regulations of your residing country.

Product Specifications

Product name / Model numberAlterLock Gen3 / AL03GB
Dimensions of main unit / WeightLength: 167mm Width: 28mm Thickness: 9mm / 53g *1
BatteryLithium polymer / Up to 3 months runtime *2
Charging portUSB Type-C *3
Operating / Charging temperature-20 – 60°C / 0 – 45°C
Transmission systemShort range: Bluetooth, Long range: LTE-M / NB-IoT *4
Positioning systemGNSS (GPS / Galileo), Wi-Fi, 4G base stations
Sensor3-axis accelerometer
AlarmMaximum 95dB *5
Water and dust resistanceIP66
AccessorySecurity bolt, installation tool, sticker

*1 Includes security bolts.
*2 Varies depending on usage conditions.
*3 Charging cable is not included.
*4 The long-range transmission method automatically changes depending on the region used.
*5 Measured at a distance of 10 cm from the product.

AlterLock Gen3 is available in the following countries

Japan, Australia, Belgium, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Latvia, Luxembourg, Netherlands, Norway, Romania, Slovak Republic, Slovenia, Spain, Sweden, United States

*In the UK, Ireland, Italy and Canada, due to connectivity issues with communication providers, the device has been temporarily removed from the communication area.


Weight 130 g
Dimensions 200 × 80 × 20 mm
AlterLock Gen3