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Hanna Instruments – HI181 Compact Magnetic Mini-Stirrers with Electrode Holder

The HI181 Compact Magnetic Mini-Stirrer is a lightweight, portable laboratory stirrer designed for efficient sample mixing in electrochemistry and general lab applications. Its built-in electrode holder can accommodate up to three electrodes, allowing simultaneous measurement. With Speedsafe™ technology, the motor automatically adjusts to prevent over-speeding when the load changes, ensuring safety and durability. Available in eleven vibrant colors, the HI181 is compact, cost-effective, and ideal for labs with limited bench space.

  • Max Stirring Capacity: 1 liter (0.26 gallons)
  • Speed Range: 100–1000 rpm
  • Features: Electrode holder, Speedsafe™ protection
  • Use Case: Electrochemistry, sample preparation, lab experiments

Description

Proper mixing of samples is critical for accurate electrochemical measurements. The HI181 Magnetic Mini-Stirrerensures uniform temperature and consistency of samples, while accelerating sensor response times through steady stirring. Its compact and colorful design allows multiple units to occupy minimal bench space, while LED power indicators confirm operation from a distance. The sturdy ABS plastic housing protects against accidental chemical spills, making it both durable and user-friendly.

The HI181 also features an integrated movable electrode arm, accommodating up to three electrodes with diameters up to 12 mm. This enables multiple simultaneous measurements when paired with multichannel meters, and a Hanna temperature probe can be used for precise temperature readings. Speedsafe™ technology automatically limits motor speed when the stirrer load is quickly removed, protecting both the motor and the operator. With a simple electronic control, the stirring speed can be finely adjusted, making the HI181 a safe, efficient, and versatile mini-stirrer for laboratories.

Features

  • Maximum Stirring Capacity: 1 liter (0.26 gallons)
  • Speed Range: 100–1000 rpm
  • Power Supply: 110/115 VAC, 50/60 Hz
  • Environment: 0 to 50°C; RH max 95%
  • Dimensions: 137 mm diameter x 51 mm height
  • Weight: 640 g (1.4 lbs.)
  • Material: ABS plastic cover
  • Electrode Holder: Accommodates up to three electrodes ≤12 mm diameter
  • Safety Feature: Speedsafe™ technology prevents motor over-speeding
  • Indicator: LED power light
  • Included: Electrode holder, micro stir bar, instructions
  • Use: Laboratory sample preparation, electrochemistry, experiments

Specifications

SKU HI181-2-web
Product Name Compact Magnetic Mini-Stirrers with Electrode Holder – HI181
Quote Required Yes
Power Supply 110/115 VAC, 50/60 Hz
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 137 mm (dia) x 51 mm (h)
Weight 640 g (1.4 lbs.)
Ordering Information HI181 models are supplied with electrode holder, micro stir bar (1) and instructions.
Maximum Stirring Capacity 1 liter (0.26 gallons)
Minimum Speed 100 rpm
Maximum Speed 1000 rpm
Installation Category II
Cover Material ABS plastic

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