Product overviewThe Astor 20 colony counter provides a simple, accurate workflow for microbial colony enumeration in clinical and research laboratories. Its transparent, pressure-sensitive Petri dish holder is LED back-lit for even illumination and low power consumption (2 W). Counting is performed with any standard marker connected by cable; no proprietary marker is required. The holder accepts Petri dishes up to 110 mm; a 90-mm adapter is included.
Technical features- Easy-to-read display with automatic counter and Reset key
- Acoustic signal to confirm every colony count
- Transparent LED back-lit Petri dish holder, pressure-sensitive
- Compatible with any commercial marker (cable-connected)
- Accepts Petri dishes up to 110 mm; 90-mm adapter included
- Low total power consumption: 2 W
- Operable with 110 V or 220 V
Optional accessory- Code no. 66131 - Benchtop lens with lamp, adjustable arm
Technical specifications- Display: easy-to-read with automatic counter and Reset key
- Feedback: acoustic signal confirms each counted colony
- Illumination: LED back-lit Petri dish holder for uniform light diffusion and reliability
- Holder: transparent, pressure-sensitive Petri dish support
- Marker compatibility: any commercial marker accepted (no special marker required)
- Petri dish compatibility: up to 110 mm diameter (90-mm adapter included)
- Power consumption: 2 W total
- Power supply: selectable/usable with 110 V or 220 V