Portable Orp Meter - Plastic Shell, 170x35x22mm | -1999 To 1999mv Range, Digital Display, Built-in Battery, Night Vision Feature

We are a reputed name in this industry as a Exporter, Manufacturer & Supplier of Portable ORP Meter in Guangzhou, Guangdong, China.
SPECIFICATIONS:-
Range: -1999 to 1999mV
Resolution: 1mV
Accuracy : A 5 mV
Batteries :4 x 1.5V alkaline
Environment: 0 to 50a ,RH 95% max;
Dimensions :170x35x22mm
Weight :135g

Feature:
1.Small size,portable;
2.Built-in battery , suitable for outdoor test;
3.Quick response ,result accurate and reliable.
4. With night vision, you can use it in the dark.

OPERATION
a cRemove the protective cap. Do not be alarmed if white crystals appear around the cap. This is normal with ORP electrodes and they dissolve when rinsed with water.
a cTurn the meter on sliding the switch on the top.
a cImmerse into solution up to the max immersion level.
a cStir gently and wait until the display stabilizes.
a cAfter use, switch off ORP meter,, use the water clean the electrode and replace the protective cap.
Do not use distilled or deionized water for storage purposes.
a cLarge fluctuations in readings could be due to lack of calibration, dry electrode or rundown batteries.
Attention :during 2-3 weeks, put electrodes in 3mol/L KCL solution for 12 hours, to make sure the reading within accuracy.