Grant Instruments GD100 Stirred Water Bath

This listing is for the Grant Instruments GD100 Stirred Water Bath

The unit is in full working condition and is ready for immediate use

The Grant Instruments Optima GD100 series of stirred water baths and circulators with digital control provides excellent value for money for straightforward applications requiring accurate temperature control up to a maximum of 100 °C. These systems are well-regarded in laboratories for their reliability, precision, and ease of use.

Key Features

Temperature Range & Precision

Operates from ambient +5 °C to 99 °C in economy plastic tanks (P-series) or 0 °C to 100 °C in stainless steel tanks (S-series).

Delivers high stability of ±0.02 °C and uniformity of ±0.05 °C at standard setpoints such as 37 °C.

Digital Control System – GD100 Thermostat

The Grant Instruments GD100 immersion thermostat incorporates Intelligent Control Optimisation (ICO) for adaptive intelligent PID temperature regulation, ensuring fast heat-up, minimal overshoot, and stable performance.

Simple, user-friendly interface: rotary dial and two-button operation with a clear digital display.

Offers three user-preset temperatures and one main adjustable setpoint for convenience.

Tank Options & Configurations

Users can select from:

Three economy plastic tanks: P5 (5 L), P12 (12 L), P18 (18 L)

Five stainless steel tanks: S5 (5 L), S12 (12 L), S18 (18 L), S26 (26 L), S38 (38 L)

Each tank is paired with the GD100 digital immersion thermostat to form a complete temperature-controlled bath system.

Safety Features

Visual alarms for high/low temperature or liquid levels.

Float switch for low-liquid level protection to prevent dry-running.

User calibration function for increased accuracy and control confidence.

Circulation Capability

Provides excellent internal stirring for consistent temperature distribution.

While the GD100 functions primarily as a stirred bath, higher-tier models (e.g., GD120) support external circulation loops as well.