The T15E series key-press indicators include two types:T15E and T15C, which are developed specially for pallet scales. The T15E screen is LED display and the T15C screen is LCD display. The T15 series indicators have multiple National patents. In the use of them, their stability, safety and extension are better than other ordinary indicators in the market. The auto-charger of this type of indicator can protect the battery during use, which extends working life of the battery. The T15C indicators carry a first exclusive intelligent light-sensing system, which can automatically turn on or turn off its screen’s back-light power supply according to outside light. Therefore, its standby time has been prolonged.