waterproof liquid digital pH/ORP meter pH-131 made in China
- Shanghai or Ningbo
- T/T Credit Card PayPal
You May Like
-
New product Portable & Digital waterproof liquid pH/ORP tester pH-131
-
China made liquid test bench top pH tester pHS-550
-
China supplier Lohand new design bench top pH tester pHS-550
-
factory price swimming pool spa water bench top pH tester from China
-
Multi-parameter Bench-top atc aquarium pH Meter PHS-550
-
Hot sale pen type digital lab ph tester
Product Details
Place of Origin | Zhejiang, China | Brand Name | LOHAND | |
Model Number | pH-131 |
Product Description
Portable Waterproof pH/ORP meter PH-131
INTRODUCTION
This new Waterproof Meter which is cost-effective is developed to meet requirements of most users. It is fully waterproof, shockproof, reliable accuracy and a striking exterior.
FEATURES
IP67 Waterproof
Shockproof
2*AA Battery
User friendly
pH Measurement
ORP Measurement
High Accuracy
5 data points for Calibration
Automatic Temperature Compensation
Rapid Response
Restore Factory Default
HOLD
Auto Power-Off
| Name | Description |
1 | Ready | Displayed when measuring results are stable |
2 | H | HOLD |
3 | R | Restore factory settings |
4 | pH | Liquid unit |
5 |
| Main Display |
6 |
| Second Display |
7 | Temperature Scale | Current temperature scale |
8 | Battery Icon | Current battery power level |
9 | Buffer | Calibrating |
10 | pH Probe Life Icon | Need to replace new probe when it show blank Note:Only for pH Functions |
SETUP MODE
Power On
- Press POWER once to turn the meter on.
- Press POWER again to turn the meter off.
NOTE: All operations are operational when the meters power on.
Temperature Units
Temperature unit ℃, Range [0.0 – 60.0]
Temperature unit ℉, Range [32.0 – 140.0]
Working Mode
MODE,enter into different mode :
- Enter into measurement mode as soon as power on.
- Press MODE once,”pH” flash on the Second Display, pH mode
- Press MODE twice,”mV” flash on the Second Display, ORP mode
- Press MODE three times “℃” flash on the Second Display, Degrees Celsius temperature unit mode.
- Press MODE four times, “℉”flash on the Second Display, Degrees Fahrenheit temperature unit mode.
- Press MODE five times, “Buffer” flash on the Second Display,Calibration mode.
- Press MODE six times, “R” flash on the Main Display,Restore factory default mode.
HOLD/SET
HOLD/SET,when in the Measurement Mode, it acts as HOLD function.
When in the Setting Mode, it acts as Confirmation or Selection function.
Set Temperature Units
- Press MODE three times,“℃” flash on the Second Display,press HOLD/SET to confirm temperature unit.
When the meter connect to probe, current temperature value will show on the Second Display; on the other hand, show the default 25℃ without probe.
- Press MODE four times, “℉” flash on the Second Display, press HOLD/SET to confirm temperature unit.
When the meter connect to probe, current temperature value will show on the Second Display; on the other hand, show the default 77℉ without probe.
pH Calibration
In the pH Measurement Mode
Immerse the pH probe in standard buffer solution until READY shows.(Get high accuracy ,please immerse the probe for 3min or longer .)
Press MODE five times, Buffer flash on the Second Display, press HOLD/SET to enter Calibration Mode. (BUFFER stop flashing)
The meter will automatically recognize the standard buffer solution and automatic calibration. During this process, calibration value will be shown on the Second Display.
After Calibration, meter automatically returns to Measurement Mode.
Up to 5 points calibration: 1.68 4.00 7.00 10.00 12.45
Temperature℃ | pH1.68 | pH4.00 | pH7.00 | pH10.00 | pH12.45 |
0 | 1.67 | 4.01 | 7.12 | 10.65 | 13.42 |
5 | 1.67 | 4.00 | 7.09 | 10.52 | 13.21 |
10 | 1.67 | 4.00 | 7.06 | 10.39 | 13.00 |
15 | 1.67 | 4.00 | 7.04 | 10.26 | 12.81 |
20 | 1.68 | 4.00 | 7.02 | 10.23 | 12.63 |
25 | 1.68 | 4.00 | 7.00 | 10.00 | 12.45 |
30 | 1.69 | 4.01 | 7.00 | 9.87 | 12.30 |
35 | 1.69 | 4.02 | 6.99 | 9.74 | 12.14 |
40 | 1.69 | 4.03 | 6.98 | 9.61 | 11.98 |
45 | 1.70 | 4.04 | 6.97 | 9.48 |
|
50 | 1.71 | 4.06 | 6.97 | 9.35 |
|
55 | 1.72 | 4.07 | 6.97 | 9.23 |
|
60 | 1.72 | 4.09 | 6.96 | 9.10 |
|
Note: For high accuracy, we recommend that users should regularly calibrate. In the following situation, users must recalibrate meters.
Replace probe
l After measuring aggressive chemicals
l Need high accuracy
l After measuring strongly acidic/alkaline substances (pH<2 or pH>12)
l At least once a month
ORP Calibration
In the ORP Measurement Mode
- Immerse the ORP probe in standard solution until READY shows.(Get high accuracy ,please immerse the probe for 3min or longer .)
- Press MODE five times, offset flash on the Second Display, press HOLD/SET to enter Calibration Mode. (OFFSET stop flashing)
- Press SET adjusts to target value, plus 1 for every pushing; minus 1 for continuing press. Range ±150.0mV
After adjust to target value, press MODE, returns to Measurement Mode. If the target value is not equal to the measured value, unit show R.mV
ORP Calibration solution
No.1 | mV | Chemical Formula | |
1 | 256 mV | pH 4.00 | Quinhydrone [1] |
2 | 86 mV | pH 7.00 | Quinhydrone [1] |
Restore Factory Default
Press MODE six times, R flash on the Main Display,press HOLD/SET to
restore factory default and meter will return to Measurement Mode after LCD full-shown for 1S.
AUTO POWER-OFF
The meter will automatically power off without any operation for 8 min.
SPECIFICATION
pH/ORP Meter | |||
Mode | pH | Voltage(mV) | Temperature |
Range | 0 to 14pH | -1200~+1200mV | 0.0-60.0℃ |
(32-140℉) | |||
Resolution | 0.01pH | 0.1mV | 0.1℉(0.1℃) |
Accuracy | ±0.02pH | ±1mV | ±0.9℉(±0.5℃) |
Responding Time | 20S | 20S | 30S |
Calibration | Up to 5 points | ||
Temperature Compensation | Auto (ATC) from 32-140℉ or 0-60℃ | ||
Operating Temperature | 32-122℉(0~50℃) |
| |
Battery | 2*AAA | ||
Probe | Plastic electrode |
The normal package is carton box,it also can be packaged according to customers special request.
We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
Hangzhou Lohand Biological Co.,Ltd is a professional company that manufactures and exports laboratory instruments and equipments.We have our own registered brand"LOHAND" and own factory,with strong R&D center,sales team,customer service team and QC team,which grows very fast and obtains good reputation in the markt.
Our major products include: Refractometer,Test paper,pH meter,Electrode,TDS meter,Salinity meter, DO meter,ORP meter,Conductivity meter,Turbidity meter,Color comparison tube,test kit etc.Most of the products have CE certificate.All products can be customized according to buyers' special requirements.
Q1: Why choose us?
A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.
2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
3. We have purveyed customers with the lowest wholesale price.
Q2: How do you guarantee the quality?
A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.
Q3: Is OEM available?
A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.
Q4: Can we buy 1 pc for sample testing?
A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.
Q5: How to deliver the goods for trial order or small order?
A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.
Q6: What kind of payment your company accept?
A : T/T , WEST UNION , PAYPAL , ETC.
Q7: If we have not found the model from website, what should we do?
A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.
Contact Us
- Hangzhou Lohand Biological Co., Ltd.
- Contact nameMike Zhang Chat Now
- Phone86-0571-86418090
- AddressFloor 2, Bldg. 5, Jianggan Tech Park, No. 63, Jiuhuan Road, Jiubao Town, Jianggan Dist, , Hangzhou, Zhejiang
Product Categories
New Products
-
China supplier digital pH ORP transmitter
-
China made good price aquarium water controller digital online continuous pH ORP monitor
-
whole sale price aquarium water controller digital online pH ORP Controller
-
whole sale price aquarium digital online pH ORP Controller
-
Multi-parameter bench-top pH meter pHS-510 Quality Choice
-
Lohand pH-099 OEM ATC backlit screen economical pen type digital aquarium pH meter
-
high performance Pocket-sized pH Meter
-
Lohand pH-2011 OEM ATC backlit screen economical pen type digital aquarium pH meter
-
wholesale high accuracy portable digital pH/Temp meter with ATC
-
hotsale high accuracy portable digital pH/Temp meter
-
hotsale portable digital pH meter skin/cheese/dough test
-
High accuracy Portable & Digital ph/orp/temperature meter with replaceable electrode PHB-4 Quality Choice
-
High accuracy Portable & Digital PH Meter with replaceable electrode PHB-4
-
six in one multi-parameter Water Quality Monitor
-
Hot sale high accuracy lab pen type pH meter
-
Hot sale high accuracy lab pen type pH meter
-
Hot sale high accuracy laboratory digital pen type pH meter pH-281
-
lab pen type digital pH meter pH-981 can be custom made by your requirements
-
Hot sale high accuracy laboratory digital handy pH meter
-
1point or 2point Calibration laboratory digital water pen type pH meter pH-98108
-
Hot sale high accuracy lab portable pH meter
-
Hot sale high accuracy lab Bench top pH meter Quality Choice
-
high accuracy laboratory bench top pH tester
-
wholesale high precision pen type digital ph tester
Popular Searches
- instrument meter
- point meter
- ph meter
- ph controller
- ph sensor
- orp meter
- digital ph meter
- pen type ph meter
- water ph meter
- soil ph meter
- lab sensor
- ph tester
- portable ph meter
- digital ph orp meter
- temp meter
- ph tester meter
- pesticide residue detector
- aquarium controller
- aquarium thermometer
- garden moisture meter
- medical meter
- digital hardness meter
- soil ph tester
- ph meter tester
- ph meter price
- automatic ph controller
- aquarium ph controller
- orp controller
- soil meter
- ph instrument
Recommended Products
- PH10 Series HART Protocol Enabled Digital pH Meter with 4-20mA Output for Industrial Process Control
- DALCK Industrial Explosion-Proof pH Meter, Integrated Online Detection Type with Explosion-Proof Certificate
- PH-3100
- TDS-9982/9983 Waterproof pH/TDS/Temperature Meter
- KL-288/289/282/283 TDS meter / conductivity meter
- KL-98301/98302/98303/98304 TDS meter / conductivity meter
- DDS-17 Bench-top Conductivity Meter
- KL-1361/1362 Pen-type CF Meter
- KL-1396 Waterproof TDS and temperature meter
- KL-1395 TDS and temperature meter
- KL-98305 TDS Tester
- KL-1393 TDS Tester
Find Similar Products By Category
- Instruments & Meters > Analysis Instrument > pH Meter
- Please Enter your Email Address
- Please enter the content for your inquiry.
We will find the most reliable suppliers for you according to your description.
Send Now-
Mike Zhang
Hi there! Welcome to my shop. Let me know if you have any questions.
Your message has exceeded the limit.

- Contact supplier for lowest price
- Customized Request
- Request Sample
- Request Free Catalogs
Your message has exceeded the limit.
-
Purchase Quantity
-
*Sourcing Details
Your inquiry content must be between 10 to 5000 characters.
-
*Email
Please enter Your valid email address.
-
Mobile