Monitor what the internet can't see.
Aires Sentinel is a phone you post inside your server room. It watches your private network from within and reports out to the Aires Watchtower — no software on your servers, no inbound ports, no VPN.
Works with any spare Android phone · Enrolls in 2 minutes with a QR
Up and watching in three steps.
Generate a Sentinel Key in your dashboard and scan it with the phone. Two minutes, no account setup on the device.
Leave the phone plugged in — a rack, a network closet, a branch office. Assign it the internal targets to watch: servers, switches, printers, anything with an IP.
The Sentinel probes over Wi-Fi and reports to the Watchtower. If the power or the internet dies, it rides its own battery and jumps to cellular to tell you.
No agents, no containers, no scripts. The Sentinel is a separate physical device you own — your servers never run our code.
One firewall rule: outbound 443 to the Watchtower. No inbound ports, no port-forwarding, no VPN tunnel into your network.
Every server-side agent dies with the datacenter — silent exactly when you need the alarm. A phone keeps shouting on its battery, over cellular: "power lost", "network down".
The phone's sensors watch the enclosure: heat rising, light where it should be dark, movement where nothing should move. Tamper and environment alerts, no extra hardware.
Telegram, LINE, SMS, email, push. Private checks land in the same incidents, audit log, and channels as your public Aires monitors.
If a Sentinel stops reporting, the Watchtower notices within minutes and pages you. Whatever took it out — power, network, tamper — you hear about it.
Why a phone, not an agent?
Because your security team will never love installing someone else's software inside the firewall — and they're right. An agent or a Docker image is a supply chain you have to trust with root on your network.
A Sentinel is different:
- It's a sealed appliance you own. A cheap Android phone with one app, on a locked-down VLAN if you like. It can reach only the targets you list — and you can read that list in the dashboard at any time.
- It's out-of-band by nature. Its battery is a built-in UPS; its SIM is a second network. It doesn't share fate with the systems it watches.
- Its Sentinel Key is shown once, stored hashed on the server and in the phone's Keystore. Revoke it from the dashboard and the device is inert.
"Zero software on your servers. One outbound firewall rule. That's the whole install."
Post your first Sentinel today.
Any spare Android phone becomes an out-of-band monitoring appliance in minutes.
990 THB/month per outpost — private monitors on it included, no per-target fees.
Enroll a Sentinel14-day free trial on your first Sentinel · Annual 9,900 THB (2 months free) · Requires an Android phone (6.0+) and a SIM for cellular failover · Part of Aires Monitor