JENCO PH630 and QiWei PHB-4 compare

Model selection comparator If you have any questions, please click below Service	JENCO PH630 Pen pH temperature Tester In coming United States Detail	QiWei PHB-4 pH meter (portable microcomputer) 630.0 RMB China Detail

Type	Pen style	Portable
Range	0~14PH	0~14PH
Accuracy	±0.01	±0.01
Accessories

Type

Pen style

Portable

Range

0~14PH

Accuracy

±0.01

Accessories

Measurement parameters

pH, temperature

pH, mV, temperature

PH range

0.00~14.00pH

0~14pH

PH measurement Accuracy

±0.01pH

Resolution

0.01pH

pH: 0.01pH/Temperature: +/- 1 ℃

Temperature Measurement Range

0.0~99.9℃-9.9~99.9℃

Stability (zero drift)

≤ 0.01 pH +/- 1 word/2h

Impedance

>1013Ω

＞1x1012Ω

Data storage

50（ pH618N ）

without

Power

4 * LR-44 battery

Dimensions

193*44*25mm

180*80*30mm

Weight

Approx. 105g

About 0.5Kg

Standard electrode reagent

E201-C-W plastic case PH temperature electrode; PH standard calibrated sample; No. 7 DC1.5V battery 4

conditions of use

PH standard solution

(4.01, 7.00 & 10.01) or (4.00, 6.86 & 9.18), user-selected, automatic one-point, two-point or three-point correction

pH temperature compensation range

Automatic 0.00-99 ℃

End point sensing and locking

Yes.

calibration data store

Yes.

Automatic shutdown

Yes.

Temperature Measurement Range

0.0~99.9℃-9.9~99.9℃

Temperature Resolution

0.1℃

Temperature measurement Accuracy

± 0.3 ℃

Temperature compensation method

Automatic/manual

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