Tekpower OEM Uni-Trend UT61C RS232 PC connection Multimeter with Full Features ABS and Archly Plastic Made in USA or Imported Uni-Trend made high quality RS232 Multimeter with free software and RS232 Cable Stand prop up digital multimeter Model: UT-61B Auto/Manual Ranging Diode Continuity Buzzer Data Hold Max/Min Mode Built with Temperature and Capacitance ,Frequency Test Protected by Rubber Holster 1 Year USA Warranty