Pearl Protect
✔ Independent alert system – works with any controller
✔ Weatherproof & plug-and-play design
✔ Real-time alerts via mobile app
✔ Includes digital temperature & humidity sensor (20 ft cable)
✔ Built for commercial greenhouse growers
$795.00
Shipping calculcated at Checkout | *17% surcharge calculated on all hard goods.
6 in stock
How It Works – Watch Setup, Features & More
- Power supply: 24VDC
- Enclosure: IP65 weather-resistant
- Ethernet, USB, Wi-Fi, 4G*
*check for availability - Requirements: Internet, cloud connectivity, cloud subscription, and a power outlet
- 5 isolated Modbus RTU ports
Digital Temperature and Humidity Sensor Via I2C (Included)
| Supply Voltage | 2.4-5.5V |
| Communication | I2C, up to 1 MHz, 2 selectable addresses |
| Temperature accuracy | ±0.3 °C |
| Humidity accuracy | ±2% RH |
| Humidity Range | 0-100% RH |
| Temperature Range | -40 – 125°C |
| Package | 8-Pin DFN, 2.5 x 2.5 x 0.9mm |
| Current Consumption | 2 µA avg, 800 µA measuring |
| Response Time | RH: 86 s, Temp: >2 s |
1. How does this system alert me?
It sends real-time temperature and humidity alerts directly to your phone via push notifications
2. Do I need WiFi for it to work?
3. Can I use this with my existing greenhouse controller?
4. Is it hard to install?
5. What if I have issues or need help?
6. Is the cloud subscription mandatory for all features, or only for remote access?
7. Will the system keep working if the power adapter fails, and can it use other 24VDC sources?
While it includes a 24 V wall-plug power supply, Pearl Protect will also operate reliably from other 24VDC sources if the adapter fails.
Link4 Cloud for Web, Android, and iOS
The Link4 Cloud is the latest innovation to Link4’s Cloud technology, supporting the new Pearl controller.
Monitor and set your controllers from anywhere. Create reports, view graphs, and collect data. Log notes using the Grow Journal. Do all of this and more using the intuitive user interface.
