Ohaus Ranger 4000 Bench Scale Calibration Certificate?:No The tray remains securely in

The tray remains securely in place while baby is being weighed

Provides an accurate weight to 500g

Battery Life: 40 hours of continuous use

and external calibration and adjustment of weighing scales and balances where high precision (like that needed for analytical balances) is not essential

and throughput

Ohaus Ranger 4000 Bench Scale Calibration Certificate?:No The tray remains securely inOhaus Ranger 4000 Bench Scale The Best Value for Durable Industrial WeighingThe multipurpose Ranger 4000 is the right tool for industrial weighing applications in which value is important but quality, durability, and functionality cannot be compromised. Portable with die cast metal housing and a rechargeable battery, this scale is equipped with seven application modes thatcan provide results for many industrial weighing and measurement needs. Standard