Product model: FST500-503 Product features: economical force measurement display control instrument with a measurement accuracy of 0.05 level and a measurement and control speed of 10 times per second; Net weight, gross weight, peak value, valley value processing and switching display; Six alarm modes: upper limit, lower limit, deviation, and range; Zero position tracking, stability judgment, and automatic zeroing function upon startup; Alarm status and quantity unit indicator light. Application scope: Unmanned data recording, experimental data testing, daily data measurement recording.