BESANTEK BST-ET52 Digital Earth Resistance Tester

Model NO: BST-ET52

UPC Number:

BESANTEKEarth Resistance Tester is used to measure the ohms () of an earth grounding installation forbuildings (residential, office, labs, hospitals), computer server rooms, military installations, cellular sites,radio and cable towers, etc. It is used to determine if the earth (or ground) is a good conductor of electricity.

Capable of measuring earth resistance and earth voltage (Vac).
2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit.
Auto power off function.
The timer operates automatically about three to five, whenthe Push Button Switch and Timer on Buttonare pressed together.
This will keep test ON for the duration of the timer.
Time for test function (count 3-5 minutes).
Battery operated.
Small and light weight.
Data hold function.
Calibration performed with supplied test leads.
Accessories: Instruction manual, test leads (red-15m, yellow-10m, green-5m), auxiliary earth bars, carry case and batteries.

Measuring Ranges

Earth Resistance:0-20, 0-200, 0-2000

Earth Voltage:0-200V (40~500Hz)


Earth Resistance: (2%rdg+2dgt) or 0.1 which is greater

Earth Voltage: (1%rdg+2dgt)


0-20: 0.01 ,
: 0.1
: 1

Measurement System

Earth resistance by constant current inverter 820Hz approx. 2mA

Low Battery Indication

B symbol appears on the display

Data Hold Indication

'DH symbol appears on the display

Over Range Indication

1 (MSD)

Open Circuit Indication

LED will be unit

Display LCD

3 digit (2000 counts)

Power Source

1.5V (AA) x 6


163 (L) x 100 (W) x 50 (D) mm


Approx. 480g (battery included)

BESANTEK BST-ET52 Digital Earth Resistance Tester