BS 1377:3
The chart provides a simple method for soil classification by of
determining the color of soil specimens. Test set consists of 7
constant hue charts covering a total of 196 colors. The color
chart and the diagram are fitted in a pocket size binder.
Supplied complete with a tropical soil color chart, set of 2 which
can be fitted into the binder.
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 auto power off function. The time operates the "PUSH BUTTON SWITCH" and "TIMER ON BUTTON' are pressed together. This will keep the test "NO" for. Then auto power off.