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Access Control Type
Gate Control
Radio Frequency (RF)
RF Transmission
Battery Operated
# of Channels
1 Channel
Ease of Installation
Intermediate (Installs < 60 minutes)
Linear Corp.
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Convenient Key Ring Transmitter can be used with any MegaCode Format Receiver
Linear ACP00607 ACT-21A 1-Channel Key Ring Wireless Transmitter
Linear ACP00607 ACT-21A 1-Channel Key Ring Wireless Transmitter
Linear ACP00607 ACT-21A 1-Channel Key Ring Wireless Transmitter
Item# 74195
Price: Normally $22.80 
Hot Deal $14.68
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  • Compatible with all Linear access receivers and controllers
  • Supplied with quick-disconnect key ring
  • Powered by two 1616 batteries
  • 1,000,000+ possible code combinations (MegaCode format)

Essential Info

The Linear ACP00607 ACT-21A 1-Channel Key Ring Wireless Transmitter is designed for use with Linear’s access control products. The Transmitter is a single-channel device supplied with a quick-disconnect key ring. Also included are lithium batteries with a five-year service life. A unique 10-second time-out feature prevents the system from being shut down by a single transmitter transmitting continuously.

The transmitter is MegaCode format, which means each transmitter is factory preprogrammed with one of over 1,000,000 codes, virtually eliminating the possibility of code duplication. Because the receiver "learns" each specific code, no unauthorized person can gain access to the system by reprogramming a transmitter.



  • Frequency: 318 MHz
  • Number of Codes: 1,000,000 plus
  • Channels: one channel
  • Power: two 3V 1616 style batteries (supplied)
  • Battery Life: up to three years
  • Dimensions: 1.25" W x 2.25" H x .48" D (32 x 57 x 12 mm)
  • Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Linear Corp, Tel: (760) 438-7000 Ext 263


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    RANDY -- mount horeb, WI   11/25/2011
    Works great, and easy purchasing experience!
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