Automatic coop doors sometimes fail — and predators can wipe out a flock overnight. Mother Hen™ watches your coop’s doors, openings, and atmosphere — and tells you the moment something is wrong.
A weather-resistant unit that lives in your coop. It reads the position of your existing automatic chicken door, reads each BTS-MP1 sensor, and connects to the cloud over cellular to send alerts. Mother Hen does not open or close your door — it watches the one you already have.
A small magnetic sensor that mounts on any opening — doors, windows, nest box lids, hatches, or run gates — and reports open/closed state along with coop temperature at that location. It can also be deployed in temperature-only mode (on an interior wall, near a roost, or inside a brooder) when you just want a coop temperature reading. Add more as your coop grows.
A small indoor light and buzzer for your home. Green by day, blue by night, flashing red with a squawk if there’s trouble. Up to 16 Eggs per coop.
A web-based customer portal at mother-hen.com lets you see door and temperature status in real time, customize alerts, manage SMS recipients, and review history. Works in any modern browser — no app to install.
Everything you need to know about Mother Hen™.
Mother Hen™ is a working prototype with two live beta deployments — one in Tennessee and one in Colorado. We’re on a direct-sales path to launch at Sunbelt Ag Expo in Georgia in October 2026. We’ll also be at the Homestead Festival in June 2026 (visitor-only, recruiting additional beta testers).
We’re not taking orders yet. If you want to be on the waitlist, email tennis@svwllc.com and we’ll keep you posted.
Mother Hen™ is built by Smith Varmint Works LLC in Tennessee. Founded by a retired Silicon Valley engineer, we’re building a complete environmental and security monitoring system for backyard flocks, starting with the things that kill chickens most often: predators, power loss, and extreme temperature.
Contact: tennis@svwllc.com