Customer sites could require work in various temperature conditions; in and/or around moisture, on slippery and/or uneven surfaces, in confined spaces, and at heights; will require frequent standing, driving a 4-wheel drive vehicle, and occasional bending, squatting, climbing, twisting, balancing, and reaching; will have exposure to noise, vibrations and chemicals. Seeing, color perception, hearing, clear speech, dexterity in hands, driving, lifting, climbing, ability to mount and dismount equipment, pushing, pulling, warm and cold temperature conditions, sun exposure, moisture, potential exposure to hazardous materials and electrical voltages.