RC 10 (OPTEX RCTD-20U) Long-Range Wireless Annunciator System

About This Product

Hear an arrival where an ordinary door chime may not reach. The RC 10 (OPTEX RCTD-20U) wireless annunciator uses digital transmission for entry alerts across a shop or workplace.

Compatibility and operating environment

• Entry alerts: Use the system as a wireless chime for a door or other monitored point.
• Additional sensors: Multiple sensors can be ordered with the system. Sensors ordered at the same time include batteries and are programmed before shipping. Confirm accessory compatibility before ordering.
• Staff notification: Ask us about optional pager integration for your setup. A pager is not included in the base set.
• Doorbell or help-call option: The separate RC 10 DB accessory is listed with a maximum range of 700 ft. Confirm the exact accessory and compatibility before ordering.
• Weather exposure: The RC 10 DB accessory is described as water-resistant. This does not establish a weather rating or operating-temperature range for the complete system. Verify the applicable OPTEX specifications before installation in exposed or extreme-cold locations.

Frequency and range

• Digital transmission: 418–430 MHz, as stated in this listing.
• System range: Up to 2,000 ft, as stated in this listing. Actual range depends on placement and obstructions.
• RC 10 DB accessory range: Up to 700 ft.

What's included

• One receiver / annunciator.
• One transmitter.

A second receiver is ordered separately. We can program the chime before shipping so it is ready to use out of the box. Ask us to confirm batteries and accessory requirements for your chosen setup.

Compare wireless door-chime options

• Choose RC 10 for longer-range entry alerts: Consider this system when its stated transmission range and optional staff-notification accessories fit your shop or workplace.
• Choose a basic wireless doorbell for a simple push-button alert: Compare the specific model's range and weather rating with your installation needs.
• Consider a Dakota Alert option for doorbell or mailbox alerts: Our product Q&A points customers toward the Dakota Alert DCMA-4000 with mailbox alert for these uses. Check that product's included components, compatibility, range, and weather specifications before choosing.

Need extra receivers, sensors, or pager accessories? Contact us before ordering so we can help configure the right setup for your space.