TL: The TL line is Leopard equivalent with an optional remote display/programmer, 40+ input signal conditioning options, up to two relay outputs, and one channel 4-20 mA or 0-10 Vdc analog output.
TL series of transmitters are perfect for local process control applications (setpoint relay alarms or on/off control) and putting the sensor signal out on a 4-20mA loop (supported inputs include 4-20mA, AC/DC voltage/current, temperature, resistance and load cells). Texmate Leopard TL Series Transmitters Product Brief

TI: Texmate's legendary and cost-effective Tiger microPLC and Leopard Process Controllers are now available in DIN rail mount configurations.
The TI line is Tiger equivalent. It includes the same 140+ input signal conditioner options, up to six relay outputs or 16 digital outputs, one or two channel analog outputs (4-20mA or 0-10VDC) and RS-485/Ethernet (ASCII or Modbus) communication options.
It is suitable for power/energy (single phase), volts, amps, process inputs, weighing, batch, displacement and many other applications that take advantage of advanced functions such as dual totalizers, 32point input linearization, dual PID, cross channel math and IIoT readiness (Edge computing capable using TexBASIC).

TT: The TT line has single/dual inputs (voltage, current, temperature), single/dual 4-20mA outputs or 4-20mA/RS-485 (Modbus). Texmate TT Series Transmitters Product Brief

TL
TL
Series

TL-IA01
TL-IA01
AC-Volts Scaled RMS, 0-300V AC

TL-IA05
TL-IA05
AC 5 Amps Scaled RMS

TL-IA06
TL-IA06
AC-Volts True RMS, 0-300V AC

TL-IA11
TL-IA11
AC 5 Amps True RMS

TL-IP02
TL-IP02
4-20mA Isolator

TLF
TLF
Universal Frequency

TLF-IF08
TLF-IF08
Line Frequency

TLH
TLH
Temperature

TLRPM
TLRPM
Frequency / RPM

TT-1S1M
TT-1S1M
Single Input, Single Output

TT-2D2MC
TT-2D2MC
Dual Input, Single Output & RS-485

TT-2D2MM
TT-2D2MM
Dual Inputs, Dual Outputs

TTM-2S2MC
TTM-2S2MC
Dual same type Inputs, Single Output & RS-485 with Math Function

TTM-2S2MM
TTM-2S2MM
Dual same type Inputs, Dual Outputs with Math Function