VG-DARK Darkness Sensor Buy Now
The VG-DARK is a highly sensitive light sensor, which will saturate with very low levels of light. It is primarily used as a darkness sensor that will trigger a VegeHub WIFI Sensor Hub when there is light. It can be used to detect sunrise or sunset. It can be installed in a cabinet or dark room, and be used to detect when a door has been opened letting in light.
Because it is designed to saturate with low levels of light, it's not recommended for use as a general purpose light sensor. For a linear, general purpose light sensor see our LT150 Light Sensors
Protect Your Cannabis Plants
Light plays a vital role in the growth of plants such as cannabis, directly affecting its life cycle. During the vegetative stage, cannabis needs long periods of light—typically 18 hours a day—to promote vigorous, leafy growth. In contrast, the flowering stage is triggered by extended periods of darkness, usually 12 uninterrupted hours per day. This shift mimics natural seasonal changes and signals the plant to begin producing buds. Even a brief disruption—such as accidentally leaving a light on overnight—can halt the budding process and ruin an entire crop.
By using a VG-DARK sensor in combination with a VegeHub WiFi Sensor Hub, you can set up a light detection alarm. If the lights remain on when they should be off, you'll receive an email or text alert—giving you peace of mind that your plants are on track.
VegeHub WiFi Sensor Hub - Applications
- Crop Steering.
- Sunrise or sunset detector.
- Cabinet door detector.
- Dark room alarm.
- Greenhouse Automation.
- Cannabis Cultivation.
VegeHub WiFi Sensor Hub - Features
Other Vegetronix Products of Interest
- Linear Light Sensors
- Water Level Sensors
- VegeHub Garden Sensor WiFi Hub
- Soil Moisture Sensors
- Soil Moisture Meter
- Soil Moisture Sensor Relay Boards Boards
- Current loop translator
- Relative Humidity (RH) Sensor
- SDI-12 Protocol Translators
- Data Loggers
- Extension Cable
Pricing and Ordering Info
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| BUY NOW FROM OUR WEBSITE STORE | |||
| Part Number | Description | Price | Purchase |
|---|---|---|---|
| VG-DARK | Darkness sensor. | Buy Now | |
Contact us for volume pricing information.
VG-DARK Darkness Sensor - Specifications
| Power consumption | 4uA at 9V. |
| Supply voltage | 4 to 24V supply |
| Dimensions | See drawing below. |
| Output voltage range. | 0 to 3.0V |
| Operational temperature | -40°C to 85°C |
| Cable Length | 3" (6cm) |
| Enclosure Material | 3D Printed PLA. |
VG-DARK Darkness Sensor - Dimensions
VG-DARK Darkness Sensor Wiring Table
| Wire Color | Description |
|---|---|
| Red | Positive Terminal: 3.5V to 20 VDC. |
| Black | OUT: (Non-Linear: 0 to 3V where 0V is Dark) |
| Bare | Ground |
Darkness Sensor with VegeHub. (VegeHub is sold separately.)
VG-DARK Darkness Sensor - Setup with VegeHub
Use the following VegeHub Settings with the Darkness sensor.
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