Product Overview
The TA-20 was a specialized thermometer designed to monitor the internal temperatures of refrigerators and freezers. It utilized an external display unit connected to an internal sensor via a long cable. This configuration allowed for continuous monitoring without the need to open the appliance doors frequently.
By keeping the doors closed, the device helped maintain consistent internal temperatures. This was particularly relevant during power outages or mechanical failures. The unit functioned as both a thermometer and an alert system to notify users when temperatures moved outside of specific ranges.
Technical Specifications
The device featured a dual display that showed both the ambient room temperature and the appliance temperature. Users could switch between refrigerator and freezer modes using a physical toggle. The sensor cable measured approximately 39 inches in length and attached to internal surfaces using a suction cup.
The external housing was secured to the outside of the appliance with a Velcro tab. It operated on a single AAA battery and included a shatterproof display. The unit provided readings in both Fahrenheit and Celsius to accommodate different user preferences for temperature scales.
Alarm Functionality
Alerts were triggered based on preset temperature thresholds. For freezers, the alarm activated if the temperature rose above 15F. For refrigerators, the threshold was set at 45F. These settings were intended to assist in maintaining food storage conditions during unexpected appliance issues.
When a threshold was exceeded, the device emitted both an audible sound and a visual signal. Red and green lights would flash, and the audio alert sounded for six seconds every minute. The alarm required manual intervention to be turned off once the temperature returned to a safe level.
Archive Status
This shop closed in 2014, and all inventory, including the TA-20 freezer alarm, has been discontinued. The product descriptions and specifications provided here are for historical reference only. No current stock or replacement models are offered through this website.
Information regarding the original five-year warranty or previous pricing is no longer applicable. For details regarding the history of the shop or the types of items once sold, please visit the archive section. You can check the product archive for other discontinued items.
Questions
Is the TA-20 still available for purchase?
No, this product is discontinued and is no longer in stock.
What were the alarm thresholds?
The alarm triggered at 15F for freezers and 45F for refrigerators.
Rebuilt from the archive of soundtherapyworld.com. Last reviewed 2026-10-27.