EveryDrop WL-1200 1″ Irrigation Wireless Flow Meter (WL-1200)

Smart Wireless Irrigation Flow Monitoring: EveryDrop WL-1200 1″ Wireless Vortex Flow Meter

The EveryDrop WL-1200 is a next-generation 1-inch wireless vortex flow meter that replaces the legacy WM-1000 with better range, simpler setup, and a lower price. The WL-1200 uses the same proven no-rotating-parts vortex sensing technology and ships complete with the EveryDrop UMI-200 Universal Meter Interface—so your irrigation controller sees it as a standard wired flow meter the moment it’s connected.

Key Specifications & Features

• SKU: WL-1200
• Pipe Size: 1 inch (uses same mechanical parts as WM-1000)
• Technology: Vortex — no rotating parts, no bearing wear
• Wireless Protocol: Proprietary 900 MHz ISM band — better range than Bluetooth or Wi-Fi
• Range: 500+ ft line-of-sight through a single exterior wall
• Battery Life: 1 year+ on included AA batteries
• Includes: 1″ flow sensor, UMI-200 wireless interface receiver, 2 AA batteries, 18AWG wires, mounting strips, spare O-rings, PVC unions
• UMI-200 Power: 24 VAC (from controller) or optional 5V DC adapter
• UMI-200 Output: Programmable — frequency pulse (custom K-factor + offset) or scaled pulse (Hunter & others)
• Controller Compatibility: Rachio, Rain Bird, Hunter, Rainmachine, Toro, Weathermatic, and any flow-capable smart controller

What's in the Box

• 1″ EveryDrop vortex flow sensor with built-in PVC unions
• UMI-200 Universal Meter Interface receiver
• 2 AA batteries
• 18AWG wiring leads
• Mounting hook-and-loop strips
• Spare O-rings

WL-1200 vs WM-1000: What Changed?

The WL-1200 replaces the WM-1000 with equal or better radio range, a simpler pairing process, and a lower cost. The mechanical vortex sensor is identical—same pipe footprint, same vortex accuracy, same no-blowout design. The new UMI-200 interface also adds a serial number lock mode, preventing interference in dense neighborhoods where multiple WL-1200 units are deployed.

Frequently Asked Questions

What is the EveryDrop WL-1200?
The WL-1200 is a complete 1-inch wireless irrigation flow meter system. It measures water flow using vortex technology and transmits the data wirelessly over 900 MHz to the included UMI-200 receiver, which feeds a pulse signal directly into any compatible irrigation controller’s flow input terminal.

Does the WL-1200 work with Rachio?
Yes. Wire the UMI-200 interface to your Rachio Gen 3 controller: Meter (+) → S1, Meter (−) → 24VAC−, 24VAC (+) → 24VAC+, 24VAC (−) → 24VAC−. The WL-1200 is fully compatible with Rachio’s zone flow monitoring and leak detection features.

Does the WL-1200 work with Hunter controllers?
Yes. The UMI-200 can be programmed to output Hunter-specific scaled pulse signals, making the WL-1200 plug-and-play with Hunter Pro-C, ICC2, HCC, and other Hunter flow-compatible controllers.

How long does the battery last?
The WL-1200 sensor runs for 1 year or more on two included AA batteries under normal operating conditions. When batteries need replacing, only the sensor’s battery compartment needs to be accessed—no need to disturb the plumbing.

Can the WL-1200 be installed below ground?
Above-ground installation is recommended for best radio range, as wet soil impedes 900 MHz signals. However, some customers have reported successful below-ground installations in dry soil conditions.

What is the WL-1200 flow range?
The WL-1200 uses the same vortex sensor as the WM-1000, accurate from approximately 0.5 GPM to 30 GPM on a 1-inch line — ideal for residential and light commercial irrigation systems.