The 12238 has a temperature-buffered sensor enclosed in a bottle of propylene glycol solution, which ensures accurate measurements that are not impacted by rapid temperature fluctuations caused by frequent refrigerator or freezer door openings. The propylene glycol solution is GRAS (generally recognized as safe) and mimics temperature readings in a medium similar to common fluids stored in food and laboratory refrigerators, freezers and cold display cases.
The 12238 Certified Alarm Thermometer comes with a Min/Max memory, a large, easy-to-read LCD, and high/low alarm settings. The thermometer monitors temperature inside freezers, refrigerators, or cold holding display cases. The sensor has a 3 meter cable and a stainless steel, blunt probe enclosed in a sealed plastic bottle of propylene glycol. This enclosure prevents false alarms because the measurements of the probe are not impacted by rapid temperature fluctuations caused by frequent door openings that occur during normal use.
This digital thermometer mimics temperature readings in a medium similar to the common fluids stored in refrigerators and freezers in pharmacies and labs.
2 Year Warranty (1 Year Manufacturer Warranty + Bonus 1 Year Instrument Choice Warranty)
Features:
- High/low alarm setting
- Glycol buffered probe emulates products and prevents false alarms during normal use
- Gold plated stereo jack connector reduces faulty readings
- Minimum/Maximum memory stores lowest/highest readings
- Jumbo LCD
- Switchable F/C scale
- Strong Magnetic attachment and fold-away stand
- Retains settings during battery replacement
- Configurable delay alarms with audible buzzer
- More than 1 year of continuous monitoring
- Ideal for monitoring vaccines and common fluids stored in refrigerators, freezers, and cold holding display cases
Specifications
- External Sensor Measurement Range: -50 C to 70 C (-58 to 158 F)
- Internal Temperature Sensor and Operating Range: -10 C to 50 C (14 F to 122 F)
- Accuracy: +/- 0.5 C (-30 C to 55 C)/+/- 1.0 F (-22 F to 131 F) ; otherwise +/- 1.0 C (1.8)
- Display Resolution: 0.1 C/F
- Display Reading Update: 17 seconds
- Display Size: 49mm W x 53mm L (1.92in W x 2.08in L)
- Instrument Size: 76mm W x 95mm L x 19mm D (2.99in W x 3.74in L x 0.74in D)
- Body Casing: ABS polymer, resistant to chemicals and high impact
- Sensor: Thermistor
- External Probe Type/ Size: Stainless Steel, 17.8mm L x 5mm Dia (0.7in L x 0.2in Dia)
- External Sensor Bottle: 5 mL PETEG Sterile Bottle -21 CFR compliant; Polystyrene with PE cap, 1.6in L x 0.79in Dia (41mm L x 20mm Dia)
- External Sensor Buffer: Propylene glycol (GRAS classified Generally Recognized As Safe)
- Sensor cable: 3 meters x 2mm Dia (9.84ft x 0.08in Dia)
- Battery: AA Battery, user replaceable
- Certification/Calibration: CE mark, NIST traceable, RoHS, WEEE; Manufacturers Certificate of Compliance
- Weight: 5.4oz (unit, glycol bottle and sensor)
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