VDL Sensor PAR Meter Climatron Pro – IP67 PAR Sensor 0-2500 μmol for Automatic Dimming by PPFD

VDL Sensor PAR Meter Climatron Pro – IP67 PAR Sensor 0-2500 μmol for Automatic Dimming by PPFD

The VDL Sensor PAR Meter measures the photosynthetically active radiation reaching the canopy, with a range of 0 to 2500 μmol/m²·s and an accuracy of ±2 %. Connected to the VDL Climatron Pro controller, it is the accessory that enables the PAR automatic dimming mode: you enter the target PPFD and the controller automatically adjusts the light intensity until it is reached. Its IP67 sealed body and annual stability of ±2 % make it suitable for permanent operation inside the grow room.

Key features

• Enables automatic dimming by PPFD: it is the sensor that activates the PAR mode of the Climatron Pro, in which the target PPFD is set and the system regulates the light.
• Range of 0 to 2500 μmol/m²·s: sufficient for any indoor LED or HPS grow installation.
• Accuracy ±2 % and linearity ≤±1 %: measured at 1000 μmol/m²·s, 60 % RH and 25 °C.
• IP67 protection: sealed body prepared for the humid environment of a grow room.
• Minimal drift: annual stability ≤±2 %, so that readings remain valid cycle after cycle.
• Level installation: supplied with 3 leveling screws, splitter and 5 m RJ12 cable.

Technical specifications

• Dimensions: Ø80 mm × 74 mm height, with data cable
• Protection rating: IP67
• Measurement range: 0–2500 μmol/m²·s
• Accuracy: ±2 % (at 1000 μmol/m²·s, 60 % RH and 25 °C)
• Linearity: ≤±1 %
• Annual stability: ≤±2 %
• Operating conditions: 0–50 °C and RH ≤90 % non-condensing
• Power supply: DC 10–30 V
• Consumption: ≤0.1 W
• Communication: RS485 slave, RJ12 connector (6P6C), 9600 baud, 8N1
• Weight: 0.458 kg
• Reference: 600496

What's included

• 1 × PAR Meter sensor
• 1 × splitter
• 1 × 5 m RJ12 cable
• 3 × leveling screws

Compatibility

This sensor is an accessory for the VDL Climatron Pro controller (ref. 600492) and is not included as standard: it is a separate purchase. It connects to the RJ12 6P6C RS485 sensor port of the controller and is used specifically in light channel 1. Keep in mind an important limitation: only one PAR sensor can be connected per Climatron Pro, and the controller supports a maximum of 3 sensors in total across all types. Without this sensor, the Climatron Pro only dims in Normal mode (manual, by percentage); with it, the PAR automatic dimming mode by PPFD is unlocked.

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1. Disconnect the VDL Climatron Pro from the power supply before connecting the PAR sensor.
2. Place the sensor at canopy height, with the dome facing upwards and free from shadows cast by structures or other plants.
3. Level the sensor using the 3 included leveling screws: incorrect tilt will skew the PPFD reading.
4. Connect the 5 m RJ12 cable between the sensor and the controller's sensor port, using the splitter if you already have another sensor connected.
5. Power on the Climatron Pro and check that the PAR reading appears on the screen; remember that only one PAR sensor is supported and that it operates on light channel 1.
6. Enter the light menu, select PAR mode, and enter the target PPFD so that the controller automatically adjusts the luminaire's intensity.