Vivosun VPD Thermometer, Handheld Environmental Monitor Bulbs HPS & MH then compare colour to the

then compare colour to the chart

Tested to BS 476 parts 6 & 7

wear gloves and avoid contact with skin/eyes

and a whole lot more rewarding

Vivosun VPD Thermometer, Handheld Environmental Monitor Bulbs HPS & MH then compare colour to theVivosun VPD Thermometer, Handheld Environmental Monitor, Precision Infrared Laser Thermometer Gun with Adjustable Emissivity, Leaf VPD and Temperature. Multi Function Thermometer: Measures 50 480 58 896 with fast 5 second readings; Accurately tracks leaf and air VPD, ambient and leaf temperature, and humidityideal for HVAC, food processing, electrical testing, and plant care VPD Monitoring for Better Planting: Easily monitor VPD (vapor pressure