DROP D-HPS-K1 Leak Detection System with Shutoff Valve, Hub and 2 Detectors
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The DROP D-HPS-K1 is a whole-home leak protection kit made up of a smart shutoff valve, the DROP Hub and two wireless leak detectors. Adapters for 3/4 in. and 1 in. NPT lines come with the valve, covering the most common residential main water lines.
The valve goes inline on the main cold-water line just after the water meter. Its flow meter and pressure sensors track usage closely enough to catch continuous flow, a running toilet or even a tiny faucet drip. The two wireless detectors are placed at high-risk spots such as beside a water heater, and when a leak is sensed the valve closes the water supply automatically.
The Hub connects by Ethernet or Wi-Fi and pairs with the detectors wirelessly. In the DROP App, owners see real-time consumption, change valve settings, share access with family or a property manager and switch between several properties. Alerts arrive by push, text or email for leaks, continuous flow, power outages and high or low temperatures. A 9V battery backup keeps the system running during outages, a manual bypass maintains water flow during service, and the valve has built-in backflow prevention.
Highlights
Valve shuts off the water supply automatically when a leak is detected
Includes 3/4 in. and 1 in. NPT adapters for main water lines
Flow meter and pressure sensors catch continuous flow, running toilets and small drips
9V battery backup and manual bypass
Push, text and email alerts, including freeze-risk temperature warnings
Built-in backflow prevention in the valve
Specifications
Brand | DROP |
Model | D-HPS-K1 |
Type | Leak detection and shutoff system |
Pipe sizing | 3/4 in. and 1 in. NPT (adapters included) |
Installation | Inline on main cold-water line |
Connectivity | Ethernet / Wi-Fi hub |
Power | 120 V AC to 12V DC power supply |
Battery backup | 9V |
Detectors | 2 wireless, with sensing cables |
Height | 8.00 in. |
Width | 18.00 in. |
Length | 6.50 in. |
Weight | 8.0 lb |
In the box
DROP smart shutoff valve with 3/4 in. and 1 in. adapters
DROP Hub
2 wireless leak detectors with sensing cables
Power supplies and mounting hardware




