20 liter stainless-steel heated circulator with precision digital controller, swivel display, RS‑232 connectivity, dual‑speed pump, rear drain, and ±0.04 °C stability — ideal for lab baths, instrument calibration, and reaction control.
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The PolyScience SD20H170‑A11B (“Standard Digital”) is a professional-grade heated circulator with a 20 L stainless-steel tank and built-in 1100 W heater. It delivers tight control from Ambient +10 °C up to 170 °C, with excellent ±0.04 °C stability.
The unit’s 3.75″ touchpad LCD swivels 180°, enabling better usability in tight lab setups. Dual-speed pressure pump supports up to 11 L/min and 3.5 psi, while RS‑232 connectivity allows remote control and data logging. Safety features include low-liquid and over-temperature shutdown, and a rear drain ensures clean, simple maintenance.
Key Features
Specifications Table
| Feature | Specification |
|---|---|
| Reservoir Capacity | 20 L (5.28 gal), stainless steel |
| Working Temp Range | Ambient +10 °C to 170 °C |
| Temp Stability | ±0.04 °C |
| Display | 3.75″ swivel touchpad LCD |
| Pump Flow & Pressure | 11 L/min (2.9 GPM) @ 3.5 psi |
| Pump Type | Dual-speed pressure pump |
| Heater Power (60 Hz) | 1100 W |
| Connections | ¼″ F NPT inlet/outlet |
| Features | RS‑232, low‑liquid/over‑temp protection |
| Dimensions (approx.) | 24″ × 16.5″ × 16.6″ (61 × 42 × 42 cm) |
| Weight | ~70 lb (31.7 kg) |
