4.5 kg Model Type CIST/884 Bumble Bee: powered by 2 x AA alkaline batteries, press & release on/reset/off button, meter fitted to guide tube, data storage and downloading wirelessly via Bluetooth to a PC or laptop with Windows 10, GPS coordinates logged if and as obtained, mild steel T-handle and hammer powder coated in black, hardened steel impact end, yellow powder coated aluminium guide tube, 2-101 Clegg scale.