Mode Selection - CALI (Calibration)/ LOG (Data Logging)/ RCFS (Restore Factory Setting): The Quantum meter features a mode selection function with three distinct modes: CALI (Calibration): Allows users to calibrate the device for precise and accurate PAR measurements.LOG (Data Logging): Initiates the data logging mode for continuous recording of PAR flux measurements.RCFS (Restore Factory Setting): Enables users to restore the Quantum meter to its factory settings, ensuring a standardized starting point for measurements. Large LCD Display with Data Logging Function: The Quantum meter is equipped with a spacious LCD display, ensuring a comprehensive and detailed presentation of Photo Synthetically Active Radiation (PAR) flux data.The built-in data logging function allows researchers and horticulturalists to log and store measurements over time, enabling thorough analysis, trend identification, and precise documentation of PAR flux variations. Sensor with ¼" Screw Mount for Tripod and Selfie Stick, and Tripod Compatibility: The Quantum meter is designed with a versatile ¼" screw mount on the sensor, providing compatibility with tripods and selfie sticks for stable and hands-free operation.Tripod compatibility enhances flexibility in placement, allowing users to position the device optimally for accurate PAR measurements in various environments. Set Includes: 1 x Par Meter Main Unit1 x Par Meter Sensor Unit1 x 4.9ft Coiled Cable1 x 12ft Straight Cable2 x AAA batteriesEnglish Instruction ManualStandard Factory Packaging