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| Catalogue Number | 4.691 805 |
| Manufacturer | Ohaus |
| Manufacturer P/n | 30680273 |
| Alternative Ref | GUARDIAN20 |
| No. of hotplates | 1 |
| IP code | IP 21 |
| Power supply | 220 ... 240 V, 50/60 Hz |
| Max. temperature °C | 500 |
| Type of auxiliary energy | Mains connection |
| Plug type | EU |
| Dimensions heating area (WxD) | 178 x 178 mm |
| Depth heating area mm | 178 |
| Width heating area mm | 178 |
| Depth mm | 318 |
| Material housing | Aluminium |
| Type | e-G21HP07C |
| Material hotplate | Ceramic |
| Width mm | 223 |
| Display | Analogue |
| Heating capacity W | 1005 |
| Type of display | Without display |
| Operation | Rotary knob |
| PK | 1 |
| Min. temperature °C | 70 |
| Dimensions (WxDxH) | 223 x 318 x 112 mm |
| Height mm | 112 |
| Weight kg | 3.2 |
| Alternative Reference: | GUARDIAN20 |