This product appears in the Solinst Eureka Water Quality Probes Brochure
Overview
The Solinst Eureka Trimeter is a compact 1.95 in x 14 in water quality probe that holds any one Eureka sensor plus optional temperature and depth, on the same electronics as the Manta+ sondes. A self-powered Trimeter with wipered turbidity is a common choice for autonomous turbidity logging and dye-trace studies.
- Any one sensor (turbidity, pH / ORP, optical DO, conductivity, total dissolved gas or any fluorometer) plus optional temperature and vented or non-vented depth
- Temperature is included with conductivity, pH or DO; ISE, PAR, CO2 and transmissometer sensors are not available
- Wipered turbidity sensor for autonomous turbidity logging; rhodamine, fluorescein and other dye sensors for dye-trace studies
- 4 MB memory, more than 1,000,000 readings; LED diagnostic status indicators; marine connector
- RS-232 with optional SDI-12 or MODBUS for data stations and telemetry; Bluetooth through the mantaMobile and MantaLink app
- Optional internal battery pack (3 D alkaline cells) or attachable rechargeable Li-ion pack for self-powered logging
- 3-year limited warranty that covers all components, including the sensors
Configured to order: pick the sensor, temperature / depth, battery pack and output when you request a quote. Data cable and USB adaptor are not included. Underwater cables from 3 to 200 m. Request a quote for pricing and availability.
Specifications
- Sensor Configuration
- Any one sensor or fluorometer + optional temperature + optional depth (vented or non-vented)
- Sensor Options
- Turbidity (wipered), pH, ORP, optical dissolved oxygen, conductivity, total dissolved gas; fluorometers: chlorophyll a (blue or red), blue-green algae, rhodamine, crude oil, refined oil, CDOM/FDOM, fluorescein, optical brighteners, tryptophan
- Not Available
- ISE, PAR, CO2, transmissometer
- Diameter
- 1.95 in (5 cm) / 2.95 in (7.5 cm) with external battery pack
- Length
- 14 in (36 cm) without battery pack / 24.5 in (62 cm) with internal pack / 23 in (58 cm) with external pack
- Weight
- 1.4 lb (0.64 kg) without battery pack / 2.4 lb (1.1 kg) with internal pack and batteries / 3.7 lb (1.7 kg) with external pack
- Battery Options
- Internal: three 1.5 V D alkaline cells / External: attachable rechargeable Li-ion
- Data Memory
- 4 MB, more than 1,000,000 readings
- Operating Temperature
- -5 to 50 °C
- Communications
- RS-232; optional SDI-12 or MODBUS; Bluetooth with mantaMobile
- Temperature
- -5 to 50 °C / resolution 0.01 / accuracy ± 0.1 °C (no calibration required)
- pH
- 0 to 14 units / resolution 0.01 / accuracy ± 0.1 within 10 °C of calibration (± 0.2 otherwise); refillable reference
- ORP (with pH)
- -999 to 999 mV / resolution 0.1 / accuracy ± 20 mV
- Accessories
- Underwater cables 3 to 200 m, data cable and USB adaptor, battery pack, mantaMobile, soft and hard carry cases, flow cell, anti-fouling sensor guard
- Warranty
- 3 years, all components including sensors
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Parts & accessories
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Price on quote
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Price on quote
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
What warranty does it carry?
The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty
Related equipment we stock

Solinst Eureka EasyProbe Water Quality Sonde (EasyProbe20 / EasyProbe30)
Diameter: 1.95 / 2.95 in | Parameters: 4 / 5 | Warranty: 3 years

Solinst Eureka Manta F35 Anti-Fouling Multiparameter Water Quality Sonde
Diameter: 3.5 in | Fluorometers: up to 3 | Memory: 1000000+ readings

Solinst Eureka Manta+40 Multiparameter Water Quality Sonde
Diameter: 4.0 in | Fluorometers + ISE: 3 + 3 | Memory: 1000000+ readings

Solinst Eureka Manta+35 Multiparameter Water Quality Sonde
Diameter: 3.5 in | Sensors: up to 11 | Memory: 1000000+ readings

