The Thirsty Light is a digital plant moisture sensor that blinks an LED to alert the user when it is time to water a potted plant. It is designed to be unobtrusive when left in the growing medium of a plant, where it continuosly monitors conditions, testing the moisture level once per second. Thirsty Light can sense 5 different levels of dryness, causing the light to blink faster as the medium gets dryer, increasing the urgency of its call to action. When it reaches the fifth level, completely dry, the device goes into standby mode to conserve electricity, emitting a double blink every 3 seconds. There is a low-battery mode as well: a slow triple blink. The Thirsty Light comes with a comprehensive and informative user and watering guide, and is backed by a 30 day manufacturers warranty.Features:• Drypoint Digital Circuit• Long-lasting LED• Corrosion resistant Brass Probe• 2 replaceable 1.5V batteries• ABS plastic casing• On/Off switchPrice: $12.95
Hydrofarm MTPRTC Electronic Heat Mat Temperature ControllerHydrofarm MTPRTC Electronic Heat Mat Temperature Controller Features:; Electronic temperature controller for heat mats; Provides constant optimum temperatures for specific crops; Controls temperature in colder or warmer environments; Compatible with all heat mats; Optional for Hydrofarm Seedling Heat Mats; Illuminated indicator light; Three prong ground plug