S3 True Test indicator w/batt Blue Tooth

Easy to use indicator that's rugged, waterproof and fully portable.
The high contrast display is clearly visible on the brightest day and the LED backlit screen ensures visibility in failing light or dark sheds.
Only two buttons for ON/OFF and ZERO.
Bluetooth low energy technology.
12 VDC battery with 15 hours run time and only 6 hours to charge.
IP67