I have a Chargemaster Lite. It preceded the Chargemaster Link being sold now. It seems to be the same thing except Link added Bluetooth, and... I bet, additional firmware updates.

Why do I say this? Well, the Lite lies to me. It is prone to overcharging and doesn't alert me to the fact unless it's way over. Almost always, the display counts up to the setpoint and stops. It can be 0.2 or 0.3 grains above the setpoint but still display the exact weight setting. I have checked it against my Creedmoor scale a bunch of times. The Creedmoor which reads to 0.01 grains ratted out the Chargemaster. The Chargemaster is a liar! One would hope they fixed the overcharge function in later versions.

My only use now for the Chargemaster Lite is pre-charging a pan to be finish trickled with a Dandy Trickler. IMNHO, the Chargemaster is a waste of electrons since I can do the same thing with my Redding powder measure and do it much faster.