Temp-Chex liquid-in-glass laboratory thermometers can be used to monitor temperatures between -30 °C and 50 °C in various applications. All Temp-Chex thermometers are mercury free and enclosed in a plastic case to protect the thermometer and contain the contents if broken. Enviro-Safe liquid is 100% non-toxic, non-hazardous and biodegradable. Temp-Chex thermometers are scaled in 0.5° increments, allowing the laboratory to meet CAP and CLIA standards. Each thermometer is calibrated and provided with a certificate traceable to NIST to ensure accuracy and compliance with regulatory requirements. The thermometers can be attached to refrigerator, freezer or incubator walls magnetically or adhesively. Temp-Chex thermometers with Enviro-Safe are available for a range of laboratory applications: refrigerator (-5 °C to 20 °C), freezer (-30°C to 1 °C) and incubator/room temperature (20 °C to 50 °C). Temp-Chex is also available with Red Spirit.