We are offering precision ph meter, temperature meter, orp meter etc.
sts-34xx series include the sts-3420,
sts-3421 and sts-3422. The meters are used to measure acidity, alkalinity or oxidation reduction potential of liquids.
Feature:
high resolution and accuracy (up to ±0.002ph accuracy) for precise measurement
two-point push-button calibration with automatic buffer recognition
manual or automatic temperature compensation for best accuracy under fluctuating temperatures
viewing of electrode slope
automatic operation message prompts
expanded memory stores and recalls up to 99 data sets
built-in real-time clock stamps for stored data usb communication interface
model sts-3420 sts-3421 sts-3422
ph range -2.000~16.000ph -2.000~16.000ph -2.000~16.000ph
ph accuracy ±0.005ph ±0.002ph ±0.002ph
mv range 0~±1999.9mv 0~±1999.9mv 0~±1999.9mv
mv accuracy ±0.2mv ±0.2mv ±0.2mv
orp range --- --- 0~±1999.9mv
orp accuracy--- --- ±0.2mv
temperature range 0~100oc, 32~212of
temperature accuracy ±0.3oc
ph calibration points 2 points
set buffer nist, ph4.006.869.18 or usa, ph4.017.0010.01
temperature compensation 0~100oc, 32~212of, automatic or manual
memory 99 data sets with datetime stamping
output usb communication interface
display 6.5' lcd
power requirements dc9v, using ac adapters, 220vac, 50hz
dimensions 210(l)mm×188(w)mm×60(h)mm

We are offering precision ph meter, temperature meter, orp meter etc.
sts-34xx series include the sts-3420,
sts-3421 and sts-3422. The meters are used to measure acidity, alkalinity or oxidation reduction potential of liquids.
Feature:
high resolution and accuracy (up to ±0.002ph accuracy) for precise measurement
two-point push-button calibration with automatic buffer recognition
manual or automatic temperature compensation for best accuracy under fluctuating temperatures
viewing of electrode slope
automatic operation message prompts
expanded memory stores and recalls up to 99 data sets
built-in real-time clock stamps for stored data usb communication interface
model sts-3420 sts-3421 sts-3422
ph range -2.000~16.000ph -2.000~16.000ph -2.000~16.000ph
ph accuracy ±0.005ph ±0.002ph ±0.002ph
mv range 0~±1999.9mv 0~±1999.9mv 0~±1999.9mv
mv accuracy ±0.2mv ±0.2mv ±0.2mv
orp range --- --- 0~±1999.9mv
orp accuracy--- --- ±0.2mv
temperature range 0~100oc, 32~212of
temperature accuracy ±0.3oc
ph calibration points 2 points
set buffer nist, ph4.006.869.18 or usa, ph4.017.0010.01
temperature compensation 0~100oc, 32~212of, automatic or manual
memory 99 data sets with datetime stamping
output usb communication interface
display 6.5' lcd
power requirements dc9v, using ac adapters, 220vac, 50hz
dimensions 210(l)mm×188(w)mm×60(h)mm