Specifications

Technical Specifications for the LRTimelapse PRO Timer 3.5 and 3.0

  • CE conformity certified.
  • Processor: ATSAMD21 Cortex M0.
  • 128×64 pixel black and white OLED display shielded with a precision optical glass cover. [2.5: 128×32 pixel black and white OLED display, unshielded.]
  • Built in 500mAh LiPo battery, chargeable via USB-C with an standardized USB-C Cable. (3.0: only USB-A to USB-C cable)
  • Battery Powered (CR1220 Button Cell) Real-Time Clock.
  • 2 Camera Ports with standardized 2.5mm TRS female jacks.
  • Hot shoe socket on the case for mounting directly on the camera.
  • Tested temperature span: -20°C – +40°C – don’t leave the timer exposed in a car in direct sunlight. In very cold conditions, best keep the LRT PRO Timer inside a backpack in order to not drain or damage the battery due to the cold.
  • Intervals from 0.3 secs* – 120 min (could be increased via firmware update, if necessary)
  • Interval step: 0.1 secs for intervals < 30 secs, 0.5 secs for intervals < 1 min, 1 sec for intervals > 1 min, 10 secs. for intervals > 2 min, 30 secs for intervals > 5 min, 1 min for intervals > 10 min (could be changed via firmware update, if necessary). In Custom TL mode you can dial in any interval in 0.1 or even 0.01 steps.
  • Number of shots: 1 to unlimited
  • Single Exposure Bulb-Time up to 24 hours, timelapse bulb time max as long as (interval-1 sec).
  • Operation time with the battery fully charged ca. 20h, 20,000 camera releases (interval: 4 seconds, display turned on).
  • Firmware Updates via UF2 files which can be just dropped on a drive, which will be mounted after connecting the timer to a computer (PC or Mac).
  • While the optical glass cover of the LRT Pro Timer 3 provides a good protection, the LRT Pro Timer is still not waterproof. Please do not operate in Rain or expose the device directly to water.
  • Size (incl. Rotator): 83 x 43 x 29 mm 
  • Weight (incl. battery): 85g (PT3: 67g)
  • Size of packaging: 135 x 89 x 35 mm
  • Weight incl. packaging: 125g (PT3: 107g)

Risk Assessment for the LRTimelapse Pro Timer

In accordance with the EU General Product Safety Regulation – GPSR, effective 2025.

The following potential risks have been identified:

  • Electrical Risks: Potential for electric shock or short circuit due to improper handling or device damage.
    The device is CE-certified, confirming compliance with European safety standards. Users should not attempt to repair the unit on their own.
  • Thermal Risks: Risk of overheating if used outside the recommended temperature range or exposed to direct sunlight.
    It is recommended to avoid leaving the device in vehicles under direct sunlight and to store it in a bag in extremely cold conditions to protect the battery.
  • Mechanical Risks: Risk of injury from a breaking glass cover.
    The use of precision glass covers and high-quality materials minimizes mechanical risks. Users must ensure the timer is securely attached to the camera or tripod and the tripod is standing sturdy. When packing the timer into a photo bag, it should be wrapped into a cloth or protection bag to avoid the protective glass from breaking.
  • Battery Risks: Potential damage or leakage from the LiPo battery due to improper charging or usage.
    The built-in LiPo battery should only be charged using appropriate USB chargers. Deep discharging should be avoided to extend battery life.
  • Environmental Risks: Damage from water or moisture ingress, as the device is not waterproof.
    As the device is not waterproof, it should not be used in rainy or excessively humid environments.

Conclusion

The LRTimelapse Pro Timer has been designed and certified in compliance with European safety standards. When used properly and within the recommended operating conditions, the identified risks are minimal. However, it is recommended that the user manual includes clear guidance on the identified risks and the necessary precautions to ensure safe operation.

*) For cameras which do not require the AF signal to be sent before the shutter release. By default, the minimum shutter time will be calculated as (Shutter_Release_Time + AF_Time + 50ms) rounded up to the next 100ms. By default, it’s 0.4 secs. For cameras which do not require an AF-Signal to be sent before the release, you can set the AF-Time to 0 in the settings, then the minimum interval will be 0.3 secs. Please note, that most cameras won’t be able to shoot such short intervals.

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