A farmer often has to measure the temperature in a cold room or fridge, or in a store room or office compared to ambient air temperature. T his can be done quickly and easily and apparently quite accurately, with the simple and affordable Atech KT200 digital twin-channel maximum-minimum thermometer. Powered by one 1,5V AA battery, the can record the temperature both inside a room and inside a fridge or fish tank, for example, and simultaneously display both on its screen.
The first temperature sensor (IN) is built into the unit box, while the second (OUT) is a probe on the end of a thin 3m cable for access further away. he display continuously measures changing temperature and at the press of the max/min button, it shows the maximum temperatures since it was last reset. Pressing the button again shows both minimum temperatures. Pressing the reset button with the minimum temperature displayed, resets the minimum function, pressing it with the maximum temperature displayed resets the maximum function. Installation is simple.
Place the external sensor away from direct heat or direct sunlight, wherever the temperature needs to be measured. For interior use, a slot is provided for hanging it on a wall and the cable to the exterior sensor is led through an open window. In a vehicle the unit can be placed on the parcel shelf under the dashboard, or in the glove compartment. The exterior sensor can be taped to the window frame or behind the bumper. he operational range is from – 50°C to 70°C give or take 1°C. It takes some time for the sensors to adjust to temperature changes, so it should be left for a few minutes to adjust. Although it does not yield laboratory accuracy, the Atech is good value for money and costs just less than R100. – Chris Nel Contact Auriel Mitchley on (011) 889 0796 or e-mail [email protected]. |fw