Digital pH Meter pH Meter pH Tester 0.00~14.00pH Moisture Measuring Instrument Water pH Acidity Meter As218

• pH Measurement Range: pH 0.00~14.00pH
• pH Basic Measurement Error: ± 0.05pH
• Instrument Repeatability: ±0.03pH
• Solution Temperature Compensation Range: 0 ~ 60°c
• Temperature Range: -10 ~ 60 ; 0.1°c
• Origin: China
• Model NO.: AS218

Product Description

A pH meter is an electronic device used for measuring the pH which is either the concentration of Hydrogen ions in an aqueous solution or the activity of the Hydrogen ions in an aqueous solution. The pH will indicate if the solution is acidic or basic, but is not a measure of acidity or alkalinity. pH meters work in liquids though special probes are sometimes used to measure the pH of semi-solid substances. A pH meter consists of a special measuring probe (a glass electrode) connected to the body which measures and displays the pH reading.
Features:
1. Data hold, Max & Min measurement function.

2. Separated pH and temperature sensor probes pH meter: It is easy to carry.

3. Low battery indication and 30 minutes auto power off:It can remind you and save the power.

4. LCD display and Backlight: It is easy to read and accurately testing.

5. Apply in water sources, aquarium, hydroponics, spas, swimming pools and other water systems.

6. Electrode probe can be replaced - Replaceable BNC pH sensor probe.

Specification:

Product Specification
Instrument Level:	Grade 0.01
PH Measuring range:	PH 0.00~14.00pH
PH basic measurement error:	± 0.05pH
Instrument Repeatability:	±0.03pH
Solution temperature compensation range:	0 ~ 60°C
instrument repeatability	0.03pH
mV measuring range:	-1400mV±1400mV
temperature range:	-10 ~ 60 ; 0.1°C
Battery:	9V Battery (not include)
Display:	Large LCD segment type display with back light
Working temperature:	0 ~ 35°C
Working humidity:	0-80% R H ( Non Gel)
Product Net Weight	205g
Product Size	159*66*31mm
Packing contents	1. AS218 type electronic unit 1 pc;  2. Ph composite electrode:general purpose and field usage. 12.3mm diia.X 160mm.plastic body*1pcs  3. PH4.00, PH6.86, PH9.18 calibration power*2 bags ench type(see picture)  4. electrode liquid storage bottle:*1pc  5. instruction manual and warranty card:one set each
Normal Condition of Use
(1)	the environment temperature (0 ~ 35) ;
(2)	the relative humidity is not more than 80%;
(3)	measured solution temperature: (5 ~ 60 );
(4)	power supply: 9V DC battery X 1pc (006P);
(5)	no significant vibration;
(6)	in addition to the earth's magnetic field without external magnetic field outside interference.

Open the battery door that located at the back of theinstrument, insert a new 9V battery into this compartmentwith correct polarity. If you have replaced with a new PHcompositeelectrode, please do the calibration before usethis unit to measure.

If measuring interval time is short, one month calibrationonce is enough.

This instruction use three point calibration method foralibrate this unit, please following the step one by one

The unit and calibration solution must be calibrated atambient environment temperature 25 C +/-2 C.