Thiết bị đo điện trở đất hiện số điện tử ST-1520

Thiết bị đo điện trở đất hiện số điện tử ST-1520
FEATURES
● Capable of measuring earth resistance and earth voltage.
● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.
● Auto power off function.
● The timer operates automatically for about three to
five minutes when the “PUSH BUTTON SWITCH”
and “TIMER ON BUTTON” are pressed together.
This will keep test “ON” for the duration of the timer.
● Timer for test function (count 3-5 minutes).
● Battery operated.
● Data hold function.
● Small and lightweight.
● Calibration performed with supplied test leads.