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The Quantis S-904 is a microprocessor benchtop meter for pH, conductivity, millivolt (ORP) and temperature measurement. A 16×2 LCD and solid-state IC circuitry suit monitoring of acidity, alkalinity, conductivity and temperature in natural, sea, drinking, treated and waste water, brine, soil and other chemical solutions.
Key features
- pH, conductivity, mV and temperature in one meter
- 16×2 LCD display
- Cell constant adjustment facility
- Highly stable and accurate
- Rugged and reliable design
- RS232 PC interface facility
Technical specifications
| Model | S-904 |
| Display | 16×2 LCD |
| pH range / resolution / accuracy | 0 to 14 pH / 0.01 pH / ±0.01 ± 1 digit |
| pH temperature compensation | 0 to 100°C, auto / manual |
| Slope correction | 80 to 120 % |
| Auto buffer recognition | 4.00, 7.00 and 9.2 pH |
| Conductivity ranges | 0–20 and 0–200 µS; 0–2, 0–20, 0–200 and 0–1000 mS |
| Conductivity resolution / accuracy | 0.01 µS / ±0.5 % FS ± 1 digit |
| Conductivity temperature compensation | 5 to 50°C, auto / manual |
| Cell constant | 0.05 to 10.5, adjustable |
| ORP range / resolution / accuracy | 0 to ±1999 mV / 0.1 mV / ±0.1 mV ± 1 digit |
| Temperature range / resolution / accuracy | 0 to 100°C / 0.1°C / ±0.1°C ± 1 digit (PT-100) |
| PC interface | RS232 port |
| Power supply | 230 V ± 10 % AC, 50 Hz |
| Dimensions (L×B×H) | 195 × 225 × 65 mm |
| Weight | 2 kg |
| Delivery period | 10 days |
Supplied with
pH electrode, conductivity cell, temperature probe, dust cover, instruction manual, cell stand, buffer solutions (pH 4, 7 and 9.2) and 12 V DC adaptor.
Delivery Period – 10 days
Frequently asked questions
Do you provide a GST invoice and bulk or institutional quotation?
Yes. Labmart (Chemlab Equipment) issues a GST invoice, and we quote for colleges, hospitals, pharma companies and government labs, including bulk orders. Send us your requirement for a quotation.
What is the HSN code for this instrument?
The HSN code is to be confirmed for your quotation and invoice.
What warranty does the S-904 carry?
The manufacturer gives a 12-month warranty from the date of dispatch. It does not cover fragile or third-party parts.
What is the delivery period?
Delivery period is 10 days. Courier or freight charges are extra.
What is supplied with the instrument?
pH electrode, conductivity cell, temperature probe, dust cover, instruction manual, cell stand, buffer solutions (pH 4, 7 and 9.2) and 12 V DC adaptor.
What power supply does it need?
It runs on 230 V ± 10 % AC, 50 Hz.
Is installation support available?
Yes. Online installation support is provided by the manufacturer.
What is the difference between the S-904 and the S-949?
They share the same pH, conductivity, ORP and temperature specifications. The S-949 adds TDS and salinity measurement.
Can the S-904 connect to a PC?
Yes, through its RS232 port.
Which conductivity ranges does it cover?
Six auto ranges from 0–20 µS up to 0–1000 mS, with a cell constant adjustable from 0.05 to 10.5.
- Regular price
- Rs.25,299.00
- Sale price
- Rs.15,799.00
Sale
The Quantis S-904 is a microprocessor benchtop meter for pH, conductivity, millivolt (ORP) and temperature measurement. A 16×2 LCD and solid-state IC circuitry suit monitoring of acidity, alkalinity, conductivity and temperature in natural, sea, drinking, treated and waste water, brine, soil and other chemical solutions.
Key features
- pH, conductivity, mV and temperature in one meter
- 16×2 LCD display
- Cell constant adjustment facility
- Highly stable and accurate
- Rugged and reliable design
- RS232 PC interface facility
Technical specifications
| Model | S-904 |
| Display | 16×2 LCD |
| pH range / resolution / accuracy | 0 to 14 pH / 0.01 pH / ±0.01 ± 1 digit |
| pH temperature compensation | 0 to 100°C, auto / manual |
| Slope correction | 80 to 120 % |
| Auto buffer recognition | 4.00, 7.00 and 9.2 pH |
| Conductivity ranges | 0–20 and 0–200 µS; 0–2, 0–20, 0–200 and 0–1000 mS |
| Conductivity resolution / accuracy | 0.01 µS / ±0.5 % FS ± 1 digit |
| Conductivity temperature compensation | 5 to 50°C, auto / manual |
| Cell constant | 0.05 to 10.5, adjustable |
| ORP range / resolution / accuracy | 0 to ±1999 mV / 0.1 mV / ±0.1 mV ± 1 digit |
| Temperature range / resolution / accuracy | 0 to 100°C / 0.1°C / ±0.1°C ± 1 digit (PT-100) |
| PC interface | RS232 port |
| Power supply | 230 V ± 10 % AC, 50 Hz |
| Dimensions (L×B×H) | 195 × 225 × 65 mm |
| Weight | 2 kg |
| Delivery period | 10 days |
Supplied with
pH electrode, conductivity cell, temperature probe, dust cover, instruction manual, cell stand, buffer solutions (pH 4, 7 and 9.2) and 12 V DC adaptor.
Delivery Period – 10 days
Frequently asked questions
Do you provide a GST invoice and bulk or institutional quotation?
Yes. Labmart (Chemlab Equipment) issues a GST invoice, and we quote for colleges, hospitals, pharma companies and government labs, including bulk orders. Send us your requirement for a quotation.
What is the HSN code for this instrument?
The HSN code is to be confirmed for your quotation and invoice.
What warranty does the S-904 carry?
The manufacturer gives a 12-month warranty from the date of dispatch. It does not cover fragile or third-party parts.
What is the delivery period?
Delivery period is 10 days. Courier or freight charges are extra.
What is supplied with the instrument?
pH electrode, conductivity cell, temperature probe, dust cover, instruction manual, cell stand, buffer solutions (pH 4, 7 and 9.2) and 12 V DC adaptor.
What power supply does it need?
It runs on 230 V ± 10 % AC, 50 Hz.
Is installation support available?
Yes. Online installation support is provided by the manufacturer.
What is the difference between the S-904 and the S-949?
They share the same pH, conductivity, ORP and temperature specifications. The S-949 adds TDS and salinity measurement.
Can the S-904 connect to a PC?
Yes, through its RS232 port.
Which conductivity ranges does it cover?
Six auto ranges from 0–20 µS up to 0–1000 mS, with a cell constant adjustable from 0.05 to 10.5.
- Regular price
- Rs.25,299.00
- Sale price
- Rs.15,799.00
Sale
GST Invoice included
(Save 18% on business purchases)
Need Quote ?
Get Bulk Order Quotation for your lab or Tender Quotation at special discounts !
Contact our support team at support@labmart.in to get the best quote for your bulk order requirement.
Sales Support - +918920746300
Technical Support- +919667893959
Kindly allow us a time of 2-3 days to properly match all the inquired specs, we will also provide authorization(s) to dealers for particular tenders (on tender basis)

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Free Shipping
Orders above Rs. 1000.
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On Time Delivery
Within 7 days.
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Money Back Guarantee
14 day Return*
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Service Support
Online Installation Support.
Product Description
The Quantis S-904 is a microprocessor benchtop meter for pH, conductivity, millivolt (ORP) and temperature measurement. A 16×2 LCD and solid-state IC circuitry suit monitoring of acidity, alkalinity, conductivity and temperature in natural, sea, drinking, treated and waste water, brine, soil and other chemical solutions.
Key features
- pH, conductivity, mV and temperature in one meter
- 16×2 LCD display
- Cell constant adjustment facility
- Highly stable and accurate
- Rugged and reliable design
- RS232 PC interface facility
Technical specifications
| Model | S-904 |
| Display | 16×2 LCD |
| pH range / resolution / accuracy | 0 to 14 pH / 0.01 pH / ±0.01 ± 1 digit |
| pH temperature compensation | 0 to 100°C, auto / manual |
| Slope correction | 80 to 120 % |
| Auto buffer recognition | 4.00, 7.00 and 9.2 pH |
| Conductivity ranges | 0–20 and 0–200 µS; 0–2, 0–20, 0–200 and 0–1000 mS |
| Conductivity resolution / accuracy | 0.01 µS / ±0.5 % FS ± 1 digit |
| Conductivity temperature compensation | 5 to 50°C, auto / manual |
| Cell constant | 0.05 to 10.5, adjustable |
| ORP range / resolution / accuracy | 0 to ±1999 mV / 0.1 mV / ±0.1 mV ± 1 digit |
| Temperature range / resolution / accuracy | 0 to 100°C / 0.1°C / ±0.1°C ± 1 digit (PT-100) |
| PC interface | RS232 port |
| Power supply | 230 V ± 10 % AC, 50 Hz |
| Dimensions (L×B×H) | 195 × 225 × 65 mm |
| Weight | 2 kg |
| Delivery period | 10 days |
Supplied with
pH electrode, conductivity cell, temperature probe, dust cover, instruction manual, cell stand, buffer solutions (pH 4, 7 and 9.2) and 12 V DC adaptor.
Delivery Period – 10 days
Frequently asked questions
Do you provide a GST invoice and bulk or institutional quotation?
Yes. Labmart (Chemlab Equipment) issues a GST invoice, and we quote for colleges, hospitals, pharma companies and government labs, including bulk orders. Send us your requirement for a quotation.
What is the HSN code for this instrument?
The HSN code is to be confirmed for your quotation and invoice.
What warranty does the S-904 carry?
The manufacturer gives a 12-month warranty from the date of dispatch. It does not cover fragile or third-party parts.
What is the delivery period?
Delivery period is 10 days. Courier or freight charges are extra.
What is supplied with the instrument?
pH electrode, conductivity cell, temperature probe, dust cover, instruction manual, cell stand, buffer solutions (pH 4, 7 and 9.2) and 12 V DC adaptor.
What power supply does it need?
It runs on 230 V ± 10 % AC, 50 Hz.
Is installation support available?
Yes. Online installation support is provided by the manufacturer.
What is the difference between the S-904 and the S-949?
They share the same pH, conductivity, ORP and temperature specifications. The S-949 adds TDS and salinity measurement.
Can the S-904 connect to a PC?
Yes, through its RS232 port.
Which conductivity ranges does it cover?
Six auto ranges from 0–20 µS up to 0–1000 mS, with a cell constant adjustable from 0.05 to 10.5.
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