Multi-Button Key Tag Transmitter PTX2/PTX4 User Manual Penguin Engineering Systems Inc. PESIplex Multi-Button Key tag Transmitter (PTX2/PTX4) User Manual The PTX2 & PTX4 series of transmitters are designed to work with the PESIplex PTX-433 Receiver module. These are battery operated low powered hand held transmitters. The PTX2 & PTX4 transmissions are encrypted to ensure the highest level of security.
Multi-Button Key Tag Transmitter PTX2/PTX4 User Manual Penguin Engineering Systems Inc. Replacing the battery: 1. Carefully open the plastic case with a screwdriver from the key ring corner. 2. Once opened, take the circuit board out and push out the coin shaped battery and replace it with a new CR2032 (3V Lithium Ion) battery.