3 1/2位背光LCD（1999计数），带自动极性安全设计，符合UL 1244和IEC 1010-1标准过载保护和指示数据保持抗震皮套

3 1/2-digit backlighted LCD (1999 counts) with automatic polaritySafe design meets UL 1244 and IEC 1010-1 standardsOverload protection and indicationData holdShock-resistant holster