Water For People Background

Water For People is an international non-governmental organization (NGO) that works with people and partners to develop innovative and long-lasting solutions to the water, sanitation, and hygiene problems in developing countries. The organization strives to continually improve, experiment with promising new ideas, and leverage resources to multiply its impact.

Water For People has secured funds from the U.S. Government to finance the Isoko y’Ubuzima WASH project that will operate in 10 Districts of Rwanda, including Rwamagana, Kayonza, Ngoma, Kirehe, Nyagatare, Ruhango, Nyanza, Nyamagabe, Nyabihu, and Ngororero from 2021 to 2026. The purpose of this project is to increase and sustain equitable access to safe drinking water and sanitation services to improve health and contribute to a strong economy.

One of the project objectives consists of ensuring safe and reliable water supplies from the source to the tap of the customers.

In that context, Isoko y’Ubuzima Project has rehabilitated 33 water supply systems and will conclude the project by leaving in place a well-documented water quality monitoring plan for districts. In line with its main project objective on water quality monitoring, Water For People, through the Isoko y’Ubuzima project, has committed to the purchase of portable water testing kits for WASAC Utility Ltd/ branches in the concerned districts to monitor water quality of rural water supply systems.

In light of the above, we request interested and qualified companies to submit bids/quotations for the supply of portable water testing kits listed below.

Instructions

This document is not a commitment to purchase on the part of Water For People. Should your offer be successful, Water For People may issue a Purchase Order with specified goods to be supplied. Any order arising from this Request for Quotations will be subject to Water For People's Conditions of Purchase. 

Conditions of supply for water quality testing kits

Source of funds

Isoko y’Ubuzima project

Customs clearance, if required, shall be done by

Contractor

The exact address of the project (destination)

KG 7 Ave, House #41, Kigali, Rwanda

Latest Starting date

Immediately after both parties have signed the purchase order or contract, 

Currency of quotation

Rwandan Francs (Rwf)

Taxes

Indicate, in separate columns, the price without VAT and the price with VAT.

Responsibility for the transportation of goods

The Contractor shall supply the goods/items to the Water for People Country Office.

After-sales services required 

If the supplied item is defective within the after-sales service period specified in the tender, the Contractor must replace it.

Payment terms

100% upon complete delivery and acceptance post-inspection of the products by the competent Authority. No advance payment will be made for this tender.

Evaluation criteria

Ensure that all the documents listed below are submitted. Bidders must provide all mandatory documents to qualify for the technical evaluation. Failure to provide one of the listed documents below will result in complete disqualification from this tender. Only bidders who submit complete administrative documentation will proceed to the technical evaluation stage

A. Bidders Registered Locally in Rwanda

1. Valid tax clearance certificate
2. Valid Social Security clearance certificate
3. Company registration certificate 
4. VAT Certificate

 B. Bidders Registered Outside of Rwanda

Foreign bidders must provide the following documents, duly issued or certified by the relevant authorities in their country of registration:

1. Proof of Company Registration in the country of origin (equivalent to a Company Registration Certificate)
2. Valid Tax Compliance Certificate issued by the relevant authority
3. Proof of VAT Registration (or equivalent, if applicable in the bidder's country)
4. Declaration confirming that the company is not under any legal dispute, bankruptcy, or insolvency proceedings
5. Notarized Power of Attorney authorizing the signatory to represent and submit the bid on behalf of the company

Where applicable, official English translations of all submitted documents must be provided if originally issued in another language.

I. Technical evaluation

II.1 Kits to be supplied

II.2 Proof of company working experience in the field 

II. Financial Evaluation

The financial evaluation will be based on the tender prices, and the lowest responsive bidder will be awarded the tender. Marks obtained during the technical evaluation will not affect the financial evaluation.

To qualify for financial evaluation, bidders must meet the following criteria: 

 Bidders Registered Locally in or Outside Rwanda

• All mandatory administrative documents must be submitted without exception. 
• The bidder must achieve a minimum aggregate score of 80 out of 100 in the technical evaluation.
• The bidder must attain a minimum score of 80% for each of the technical evaluation marks scoring sections: Equipment to be supplied and work experience.
• Protected Financial Proposal.

Additional Requirements for Bidders Registered Outside Rwanda: Pricing and Delivery Terms

Foreign bidders must include all costs in their financial proposal. No additional or hidden charges will be accepted after submission.

Prices must be:

• Inclusive of all expenses related to acquisition, international shipping, customs clearance, warehousing (if applicable), and final delivery to the destination.
• The supplier is responsible for delivering the goods to the destination, including payment of all duties, taxes, and other charges

Note: Bidders must ensure that the quoted price covers the entire supply chain up to the delivery point above, including:

• International freight
• Import duties and all taxes
• Inland transportation within Rwanda
• RICA and RSB certification process
• Any handling or warehousing costs

Conditions for the release of the payment

Written acceptance of the goods supplied is based on full compliance with these RFQ requirements.

Deadline for submission of quotation

April 28th 2026

Documents to be submitted with the quotation

• All administration documents are stated in “Evaluation criteria.”
• Manufacturer's certificate with technical specifications of the proposed brand of water quality testing kits, warranty, and delivery time.
• At least 1 completion certificate in water quality measurements or supply of water quality testing kits.
• Financial offer
• Quotation of unit prices for the items listed in the Schedule of Unit Rates.

1.

pH/pH-MV/ORP Portable Multi-Meter (pH, Conductivity, TDS, Salinity, Dissolved Oxygen (DO), ORP, and ISE, 3 channels, with all electrodes) 

Pc

10

2.

Spectrophometer with all accessories and to be supplied with reagents to be used for drinking water testing (200 tests). Parameters to be tested: Aluminium, Iron, Fluorides, Nitrates, Nitrites, Ammonia, Manganese, Phosphate, Sulphate and Cyanide, residual chlorine

Pc

10

3.

Portable Turbidimeter including all accessories and with Power or USB+Power module

Pc

10

No

Item

Qty

Specification

1

pH/pH-MV/ORP Portable Multi-Meter (pH, Conductivity, TDS, Salinity, Dissolved Oxygen (DO), ORP, and ISE, 3 channels, with all electrodes)

10

Accessories Included: USB charger, power cable, and clips and probes/electrodes

Automatic Buffer Recognition: Yes 

Backlight: Yes 

Barometric Pressure Measurement: Automatic compensation of DO when using an LDO or LBOD probe 

Calibration: Demal (1D/ 0.1D/ 0.01D);
Molar (0.1M/ 0.01M/0.001M);
NaCl (0.05%; 25µS/cm; 1000µS/cm; 18mS/cm);
Standard sea water;
User defined 

Calibration Intervals/Alerts/Reminder: Off, selectable from 2 hours to 7 days 

Certifications: CE, FCC, ISED, RCM, KC, ETL Verified: US DOE/ NRCan Energy Efficiency, RoHS 

Conductivity measurement: Temperature correction: None; Linear; NaCl Non-Linear Natural Water. 

Conductivity Measurement Range: Yes 

Custom Calibration Standards: Yes 

Data Export: USB connection to PC or USB storage device (limited to the storage device capacity). 

Data Memory: 100,000 data points 

Data Storage: Automatic in Press to Read Mode and Interval Mode. Manual in Continuous Read Mode. 

Dimensions (H x W x D): 63 mm x 97 mm x 220 mm 

Display: Up to 3 parameters at a time, dependent on HQ model 

Display Type: 536x336 Mono-TFT 

DO Measurement Range: 0.1 - 20.0 mg/L (ppm), 1 - 200% saturation 

DO Resolution: 0.1 

Enclosure Rating: IP67 (with battery compartment installed) 

GLP Features: Date; Time; Sample ID; Operator ID, Calibration 

Inputs: 3 

Instrument: Portable 

ISE Direct Measurement Range: Yes 

ISE Electrode Calibration: Yes 

Kit: Meter with all accessories

Languages: English, Chinese - Simplified, Spanish, French, German, Italian, Japanese, Turkish, Dutch, Portuguese (PT & BR), Korean, Danish, Swedish, Polish, Norwegian, Hungarian, Greek, Finnish, Czech, Romanian, Croatian, Bulgarian, Slovak, Lithuanian, Estonian, Slovenian, Russian 

Lock Function: Continuous / Auto-stabilization ("press to read") / At Interval 

Measurement Method: Probe specific programmed method settings 

Multi/ISE/3 Channels 

mV Measurement at Stable Reading: Yes 

mV Measurement Range: Yes 

mV Resolution: 0.1 mV 

Operating Error Messages: Clear text error messages displayed 

Operating Humidity: 90% (non-condensing) 

Operating Interface: Soft Touch Keypad 

Operating Temperature: 0 - 60 °C 

ORP Electrode Calibration: Predefined ORP standards (including Zobell's solution) 

Parameter: pH, Conductivity, TDS, Salinity, Dissolved Oxygen (DO), ORP, ISE 

pH Buffer Sets: Colour-coded: 4.01, 7.00, 10.01 pH;
IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45
DIN: 1.09, 4.65, 9.23
User-defined custom buffer sets 

pH Electrode calibration: 1 - 3 Calibration points
Calibration summary data logged and displayed 

pH Measurement Range: 0 - 14 pH 

pH Resolution: Selectable:
0.001/0.01/0.1 pH 

Power Supply: Rechargeable lithium-ion battery 18650 (internal)
Class II, USB power adapter: 100 - 240 VAC, 50/60 Hz input; 5 VDC at 2 A USB power adapter output (external) 

Probes included: None 

Probe Type: Intellical Standard Laboratory or Rugged Field 

Protection Class: IEC Class III (SELV (Separated/Safety Extra-Low Voltage) powered); external 

Salinity Measurement Range: 0 - 42 (ppt) (‰) 

Salinity Resolution: 0.01 (ppt) (‰) 

Sensor A: None 

Sensor B: None 

Sensor C: None 

Storage Conditions: -20 - 60 °C, max. 90% relative humidity (non-condensing) 

TDS Measurement Range: 0.00 mg/L - 50.0 g/L NaCl 

TDS Resolution: 0.01 mg/L - 0.1 g/L upon measuring range 

Temperature Compensation: Automatic Temperature compensation for pH 

Temperature Measurement: °C or °F 

Temperature Resolution: 0.1 °C 

Type of measurement: Field Measurements 

Warranty: 36 months 

Weight: 570 g (Meter only) 

What's included?: Portable Meter: pH/ORP/EC/TDS/DO/ISE Multi-Meter, 3 channels, includes manuals, Li-Ion batteries, USB charger with cable for USA. 

Supplied with all probes (measuring: pH/ORP/EC/TDS/DO/ISE) and calibration standards

2

Spectrophotometer 

10

Battery Life: 15 days (typical) @ 5 readings a day / 5 day week without backlight*

* Backlight usage will decrease battery life. 

Battery Requirements: 4, AA size alkali cells 

Cuvette Compatibility 10: 10 mm square / 1 inch square and 13 mm / 16 mm / 1 inch round 

Data Logger: 500 measured values (Result, Date, Time, Sample ID, User ID acc. to GLP) 

Dimensions (H x W x D): 98 mm x 178 mm x 267 mm 

Display: Graphical display 240 x 160 pixel (LCD, b/w, backlit) 

Enclosure Rating: IP67 

Includes: Printed Basic Manual, CD with procedure manual (English) in pdf format. Set of vial adapter in carton box. Pkg of 4 AA Alkaline Battery. Dust Cover 

Interface: USB type Mini IP67 (with optional Module) 

Mains Connection 2: 110 - 240 V / 50/60 Hz (* optional Power Module required. May not be available in all regions) 

Mains Connection 3: 4x NiMH rechargeable Battery 

Operating Conditions: 10 to 40 °C (50 - 104 °F), max. 80 % relative humidity (non-condensing) 

Operating Humidity: max. 80 % relative humidity (non-condensing) 

Operating Mode: Transmittance (%), Absorbance and Concentration 

Operating Temperature: 10 to 40 °C 

Optical System: Reference beam, spectral 

Reference beam, spectral 

Photometric Accuracy: ± 0.003 Abs @ 0.0 - 0.5 Abs 

Photometric Linearity: < 0.5 % (0.5 - 2.0 Abs) 

Photometric Measuring Range: 0 to 3 Abs (wavelength range 340 – 800 nm) 

Power supply: 4 x AA size Alkaline

4x NiMH rechargeable Battery*

Power supply*: 110 - 240 V; 50/60 Hz 

(* optional Module required. 

May not be available in all regions) 

Preprogrammed Methods: > 220 (Please note: TNT vial test evaluation possible, but without barcode reading & 10 fold measurement and outlier elimination feature.) 

Reproducibility: ± 0.005 Abs (0 - 1 A) 

Sample Cell Compatibility: 13 / 16 mm and 1 inch round adapter, 10 x 10 mm 1 inch square and 10x10mm 

Source Lamp: Xenon Flash 

Spectral Bandwidth: 5 nm 

Storage Conditions: -30 to 60 °C (-22 to 140 °F), max. 80 % relative humidity (non-condensing) 

Stray Light: < 0.1 %T at 340 nm with NaNO2 

Temperature Range: 0 to 50 °C (32 - 122 °F) 

User Interface Languages: English, French, German, Italian, Spanish, Portuguese, Bulgarian, Chinese, Czech, 

Danish, Dutch, Finnish, Greek, Hungarian, Japanese, Korean, Polish, Romanian, 

Russian, Slovenian, Swedish, Turkish 

User Programs: 50 

Wavelength Accuracy: ± 2 nm (range 340 - 800nm) 

Wavelength Calibration: Automatic 

Wavelength Range: 340 to 800 nm 

Wavelength Reproducibility: ± 0.1 nm 

Wavelength Selection: Automatic 

Weight: 3.31 lbs. (1.5 kg)

3

Potable Turbidity meter

10

Accuracy: ± 2 % of reading plus stray light

Battery Requirements: 4, AA

Certifications: CE certified

Compliance Certifications: CE/WEEE

Data Logging: 500 records

Dimensions (H x W x D): 77 mm x 107 mm x 229 mm

Display Size: 240 x 160 pixels

Display Type: Graphic LCD

Enclosure Rating: IP67

Height: 3.0 in

Includes: Instrument, case assembly, 4 AA alkaline batteries, 6 sample cells, StablCal ampule kit, silicone oil, oiling cloth, manual.

Interface: Optional USB

Light Source: tungsten filament lamp

Manual Languages: English, French

Max. operating humidity: 90 %

Measurement Method: Ratio turbidimetric determination using a primary nephelometric light scatter signal (90°) and transmitted light scatter signal

Measurement Modes: Normal (Push to Read), Signal Averaging, Rapidly Settling Turbidity

Operating Temperature Range: 0 - 50 °C

Power Requirements: 100 - 240 V AC / 50/60 Hz (with optional Power or USB+Power module)

Power Requirements (Hz): 50/60 Hz

Power Requirements (Voltage): 100 - 240 VAC

Power Supply: Batteries (see Battery Requirements) or Optional Power Supply

Range: 0 - 1000

Range 2: NTU

Reading Modes: Normal (Push to Read)

Signal Averaging

Rapidly Setting Turbidity

Regulatory: EPA Method 180.1

Repeatability: ± 1 % of reading or 0.01 NTU , whichever is greater

Response Time: 6 s in normal reading mode

Sample Cell Compatibility: 25 mm x 60 mm round

Sample Requirements: 15 mL (0.5 oz)

Sample Volume: 15 mL

Signal Averaging: Selectable on/off

Storage Conditions: -40 °C to 60 °C

Stray Light: < 0.02 NTU

Units: NTU

User Interface: Button Graphic User Interface

User Interface Languages: English, French, 

Warranty: 1 year

Weight: 0.53 kg without batteries

User manual and accessories. To be supplied with Power or USB+Power module)