Chematest 42 is a rugged, waterproof handheld photometer with Bluetooth that delivers high-precision chlorine, turbidity, and water-quality measurements for rapid, reliable field and plant-side testing.
The Chematest 42 is a robust multiparameter handheld analyser that delivers precise chlorine, turbidity, and water-quality measurements fully compliant with DIN ISO 7027-1 and USEPA 180.1. Each device is individually factory-calibrated for accurate low-range turbidity detection from 0.01 FNU/NTU, supported by a fixed cuvette position for exceptional repeatability and smart offset management. Its sealed sample chamber and optimised optical system ensure stable, dependable readings even in demanding field environments. Designed for potable water, pools, industrial systems, and distribution networks, it offers intuitive operation, long battery life, and full traceability through VeriKit validation—making it a trusted companion for technicians who need reliable results anywhere.
Key Features
- Turbidity measurement fully compliant with DIN ISO 7027-1 and US EPA 180.1.
- Supports robust digital sensors for pH, redox potential (ORP) and specific conductivity measurement.
- Smart cuvette offset management ensures robust low-range turbidity measurement.
- Removable cuvette holder allows an easy, time-saving measurement routine.
- Rechargeable lithium-ion battery enables fully portable, stand-alone operation.
- Delivered in a rugged carrying case with all necessary accessories (cuvettes, reagents, charger), ready for immediate use.
Chematest 42 Specifications
Parameters
| Photometry | Disinfectants: free/total/combined chlorine, chlorine dioxide, ozone, bromine and iodine (DPD method) Cyanuric acid pH: photometric with phenol red |
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| Nephelometry | Turbidity measurement according to ISO 7027-1 US EPA 180.1 alternate procedure (registration pending in accordance with 40 CFR 136.4) |
| Sensor-based | Digital, maintenance-free sensors with long service life available for pH, redox potential (ORP) and specific conductivity |
Highest accuracy
| Photometer calibration | Individual factory calibration of each photometer |
|---|---|
| Low-range turbidity | Measurement from 0.01 FNU/NTU with drinking water accuracy |
| Verification | Verification of photometric and nephelometric accuracy using stable, sealed standards |
User-friendly operation
| Documentation | User management and freely configurable sample IDs for comprehensive documentation of results |
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| Guidance | Intuitive on-screen instructions, with a choice of detailed guidance or expert mode for fast measurements |
| Favourites | Favourites list for quick access to methods |
Up-to-date electronics
| App | Chematest App for data export, instrument configuration and firmware updates via Bluetooth |
|---|---|
| Battery | USB-charged lithium-ion battery for approx. 5000 measurements |
| Memory | Memory for 2700 data sets |
What’s included
| In the case | Chematest 42 in carrying case 2 × cuvette holder with integrated sealing lid 5 × glass cuvette Brush for cuvettes 6 × cleaning wipes Microfibre cleaning cloth Sensor storage container 125 mL dropper bottle 10/20 mL syringe 8 × syringe filter 0.2 µm in vial 2 × blister pack for five reagent bottles each USB charging cable Warranty card Quick start guide |
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Contact us to place an order.
Downloads
| Brochure | Product Flyer |
| Manual | Manual |
| Datasheet | Datasheet |
