More info on this product here: LPI/VPI-800 Series

VPI-809PG

GREEN LCD, RANGE: 12/24V VOLTAGE INPUT, BACKLIGHT POWER: +24VDC, WITH POWER ENGINEERING UNITS

$95.29

CVC

Compact Current & Voltage Calibrator

$170.78

LPI-807

NO BACKLIGHT LCD, RANGE: 4-20mA LOOP POWERED

$89.97

LPI-807A

ORANGE LCD, RANGE: 4-20mA LOOP POWERED, BACKLIGHT POWER: +24VDC

$95.29

LPI-807B

BLUE LCD, RANGE: 4-20mA LOOP POWERED, BACKLIGHT POWER: +24VDC

$100.79