Approval: NTEP Divisions: 6,000e Display:52mm(2.0inch) digits LCD display with white LED backlight Key Board:7 keys mechanical Housing: ABS plastic Standard:6V/4Ah lead-acid battery up to 60 hours of continuous use (without backlight); 40 hours of continuous use (with backlight) Optional:RS232; Blueooth5.0; analogue output (4-20mA)
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