Thermco's Ultra Low Freezers Digital Thermometer is able to monitor temperatures down to -200°C and to -100°C with buffer medium bottle. Thermometer is NIST Traceable and is supplied with a certificate. The probe is housed in a 60ml PETG plastic bottle, filled with USP sand which insulates the sensitive section of the probe to maintain temperature during the opening and closing of the door.
| CATALOG No. | Range | Bottle Media | Temperature |
| ACCULF307 | -100 to 160°C | 60ml Sand | (Certified @-78C) | ACCULF307FC | -100 to 160°C | 60ml Sand | (Factory Certified @ -80, -20, -0 °C) |
