
LoRa-powered devices built for the real world — remote farms, mine sites, and legacy equipment. Monitor, control, and automate with confidence, kilometres from the nearest cell tower.
Every number below reflects actual sensor data flowing through the GreyLink platform across farms, mines, and industrial sites.
Purpose-built LoRa-connected devices for industrial and agricultural operations. Drop them in and start collecting data from day one.
Solar-powered monitors measuring water level (0–100 m), flow rate, and borehole/pump temperature — with direct cellular upload and optional radio modules. Reports every 15 min, every 2 min while the pump runs.
Industrial-grade temperature monitoring for cold storage, grain silos, server rooms, and process equipment — available on Wi-Fi, LoRa, Standard Radio, and Cellular. Battery (2-year), solar, and mains powered.
Monitor energy consumption, voltage, current, and power factor across single or three-phase systems. Reduce costs with granular usage data and anomaly alerts.
Single-channel relay control for pumps, motors, lighting, and machinery — available over Wi-Fi, Cellular, Radio, or LoRa with a base station. Trigger manually, on schedule, or via sensor events.
Non-invasive rotational speed monitoring for motors, fans, conveyors, and turbines. Get instant alerts on over-speed, under-speed, or complete stoppage events.
We build the hardware and software. Our device plugs into your existing equipment and connects it to the cloud.
Long-range, low-power mesh radio — works kilometres from any cell tower.
Retrofit existing equipment with advanced IOT without replacing your assets.
Each device is purpose-built for your exact use case, not a generic shelf unit.
All-inclusive pricing — hardware, mobile data, and storage covered. Contact us for a package quote.
Every device ships with a 5-year hassle-free warranty under standard use. Upgrade to Warranty Unlimited for lifetime coverage.
Build your own custom IOT devices — fast. Superluminal is a firmware and integration framework designed for industrial and agricultural engineers who need reliable LoRa-connected devices without starting from scratch.
#include <Superluminal.h>
// Define your device
GreyNode node("BH-Monitor-01");
void setup() {
node.setNetwork(LORA_915);
node.addSensor(BOREHOLE_LEVEL, A0);
node.addSensor(PUMP_STATUS, D3);
node.setReportInterval(60); // seconds
node.begin();
}
void loop() {
node.tick(); // handles LoRa, OTA,
// sleep, and telemetry
}One transparent price covers everything — hardware, mobile data connectivity, cloud data storage, and ongoing support. No surprise bills, no contract lock-in.
Every GreyLink device ships with a comprehensive hardware warranty. And because every device is custom-built for your specific application, you define what normal operating conditions look like — not us.
All GreyLink devices are covered for 5 years under standard use. Because your device is built for your exact application, you agree with us upfront what normal operating conditions are — so the warranty is always fair and clear.
The ultimate peace of mind. Your GreyLink device is covered forever, under the operating conditions you specify. Even many years down the line — your device will be replaced. No expiry. No fine print.
You write the rules.
Every GreyLink device is custom-built for your specific application — whether that's a pump running 18 hours a day, a sensor in a -20 °C cold room, or a meter strapped to a high-vibration motor. At commissioning, we document your exact operating conditions together. Those agreed conditions become your warranty baseline, so there's never ambiguity about what's covered.
From concept to deployment, every part of the GreyLink IOT journey happens right here in South Africa — designed, built, and supported by local hands.
Our engineers, developers, and support staff are all based in South Africa — providing fast, knowledgeable, and timezone-friendly assistance.
Every hardware design and firmware architecture is conceived and refined locally — built for South African conditions, power realities, and environments.
Devices are assembled right here in RSA, supporting local industry and ensuring strict quality control from the first component to the final inspection.