I've got an old tester I've had for 20 years that had been around the shop for awhile then. Switch quit working and a new quality switch was half the price of an unknown quality discount tool store brand tester..
The replacement timer worked well, replacing a defective timer. Price of timer and shipping was fair. Thanks to PLP for having these in their inventory.
Talked with a fella at PLP the other day. Concerning a 15 year old Yuasa date code, not from PLP Battery. Out of his way talked about this with me so I could understand the technology. Educational and Thank you.