The Inovonics TapWatch wireless submetering system is a proven, cost effective solution for multifamily properties to reduce variable utility expenses. By accurately measuring individual residents’ utility consumption, and billing them directly for their use, multifamily properties can reduce net operating expenses and deliver cost effective resident amenities on a single wireless system.

Key Features:

  • Increased cash flow and operating income by eliminating variable utility costs
  • Improved net operating income
  • Increased property value
  • Improved tenant satisfaction
  • Conservation of water and other resources

How TapWatch Works

Inovonics’ TapWatch submetering system was designed specifically for the multifamily industry. Unlike Ratio Utility Billing Systems (RUBS), submetering uses utility meters in each unit to accurately determine each resident’s individual usage. The wireless system tracks monthly utility use, a billing company retrieves the data, and each resident receives a bill based on their personal usage. This process not only reduces a property’s operating expenses, but also encourages utility conservation.

A compatible utility meter installed in each apartment is connected to an Inovonics wireless transmitter. The transmitter converts the meter read into a digitized signal for transmission.

Repeaters, placed at strategic locations across the site, receive and verify signals from the transmitters and amplify the signals for transmission to the receiver.

The remote data logger receives transmissions from the receiver and stores the data for retrieval by TapWatch software.

Authorized billing companies access the data remotely using high-speed modems with TapWatch software.

TapWatch Components

Pulse Meter Transmitter

The PMT provides a means for tracking and broadcasting water consumption information. The PMT connects to a compatible meter’s standard pulse or reed switched output. As the meter measures consumption, resulting pulses or switch closures are counted by the PMT, and the PMT then wirelessly transmits the data to the Remote Data Logger. The information in this radio transmission includes a unique identification number, the meter pulse count, the state of the battery, and a notice of any PMT tampering.

TapWatch Compatible Meters


The repeater is an intelligent transceiver that identifies signals from Inovonics transmitters and rebroadcasts those signals. The repeater transmits at a higher power than the PMT, so the PMT radio transmissions need only reach the repeater, not the RDL. This extends the life of the battery in the PMT and creates an accurate, reliable, and cost-effective wireless system.

RDL and Receiver

The receiver, which is connected to the RDL, receives the radio signals from the PMTs and repeaters. The RDL, designed specifically for submetering by Inovonics, can store meter readings from up to 2000 meters for 99 days. At any time, the billing company can contact the RDL and download the readings along with site information and any system notices.

TapWatch Software

The billing company uses TapWatch software to communicate with the RDL. The software allows the billing company to collect, view, and monitor consumption for each unit, as well as to update site information, and monitor the system status. At any time, the usage data can be retrieved from the RDL and exported to a billing program.

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Contact Information

397 S. Taylor Ave.
Louisville, CO 80027

Phone: 303.939.9336
Toll-Free: 800.782.2709
Fax: 303.939.8977

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