Kern pcb series compact laboratory precision balance kern pcb 2500 2 the kern 2500 2 is a highly accurate precision balance which is ideal for laboratory use and is fully programmable the balance comes with a range of advanced features for precise record keeping and weighingthe balance has a pre tare function for manual subtraction of a known container weight useful for checking fill levels and is suitable for weighing and counting even the smallest parta built in recipe function makes d