Compact Key Ring Transmitter for Delta-3 Access Systems The Linear MINI-T is a compact, one-channel key ring remote transmitter designed for portable wireless access control. Built with a durable black plastic case and a single white activation button, this Delta-3 series transmitter delivers dependable signal performance at 310 MHz. It offers 256 manually selectable codes via internal DIP switches and comes pre-equipped with a key ring, LED feedback light, and a 12V battery for immediate operation. Compatible with all Linear Delta-3 receivers, the MINI-T is ideal for garages, gates, and other access-controlled environments. Key Features Compact design: Measures just 2.2" × 1.42" × 0.66" for easy portability One-channel operation: Activates a single Delta-3 compatible receiver Manual code setting: 256 dip switch code combinations for secure pairing Visual feedback: Red LED indicator confirms button press and battery health Power supply: Includes one 12V battery (A23 type) Key ring included: Convenient for attachment to keychains or fobs Reliable signal: Operates at 310 MHz with strong transmission range FCC-compliant: Certified under FCC Part 15 Technical Specifications Model: MINI-T (part number DNT00026) Format: Delta-3 (dip switch) Number of Codes: 256 manually selectable Channels: 1 Power: 12V A23 battery (included) Frequency: 310 MHz Dimensions: 2.2″ L × 1.42″ W × 0.66″ D Color: Black case, white button Compatibility: Linear Delta-3 series receivers LED Indicator: Yes Conclusion The Linear MINI-T key ring transmitter is a reliable and compact solution for single-channel access control needs. With its easy-to-set codes, strong signal range, and portable design, it is ideal for both residential and commercial users seeking straightforward, manual-code remote control. Backed by Linear's trusted engineering, the MINI-T delivers dependable performance in a minimalist form factor. Download Manual