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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

In-house service

Calibration and repair

Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.

Start a service request

Parts & accessories

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

Since 1994Supplying labs and field crews
30,000+Customers across North America
AuthorizedBrand distributor
4 hrTypical quote turnaround