Anyway, since my mining ops have gone from GH/s to TH/s, I changed up the dial in index.php, scales 0 to 4 TH/s, with markers every 250GH/s.
:
data-type="canv-gauge"
data-title="Speed"
data-min-value="0"
data-max-value="4"
data-major-ticks="0 1 2 3 4"
data-minor-ticks="4"
data-stroke-ticks="true"
data-units="TH/s"
data-value-format="1.2"
data-glow="true"
data-animation-delay="10"
data-animation-duration="200"
data-animation-fn="bounce"
data-colors-needle="#000 #f00"
data-highlights="0 1.5 #E90e00, 1.5 2.5 #ffee00, 2.5 4 #53df00"
data-value="1.2 data-value-format"
data-onready="setInterval( function() { Gauge.Collection.get('gauge1').setValue( parseInt(document.getElementById('Speed').innerHTML)/1000/1000);}, 1000);"
data-colors-plate= "#242424"
data-colors-majorTicks= "#f5f5f5"
data-colors-minorTicks= "#ddd"
data-colors-title= "#fff"
data-colors-units= "#ccc"
data-colors-numbers="#eee"
>