New products: iPhone-friendly health monitor and more

• DoorBot lets you see your front door from your smartphone
• Acer projector is compact%2C works with USB drives
• New Coolpix camera also has high-def video option

DEVICE MONITORS HEALTH

Feeling good? See if the Tinke agrees with your assessment. Designed to plug into an iPhone, the tiny device can give you a snapshot of your respiratory rate, blood oxygen levels and heart rate. Here's how: Pop the device into your iPhone (or an iPad or iPod Touch), choose a health index from the included app and place your thumb over the device's sensor. If you opt for the Vita index, the device will record your heart rate, respiratory rate and blood oxygen levels and then use these results to gauge your level of fitness. If you choose the Zen index, it will rate your relaxation based on your heart rate's variability. Just be forewarned that the device can be a bit finicky. If the room is too bright or you're too fidgety, it often won't work, which could make you feel anything but relaxed. Available in blue, pink, gray or white, the Zensorium device costs about $120.

CHECK OUT VISITORS, THEN ANSWER THE DOOR

When someone walks up to your door, DoorBot lets you see and speak to the visitor without getting off the couch. Designed to attach to your doorbell, the Wi-Fi device can be connected to both smartphones and tablets, allowing you to see and talk to arriving guests, even when you're not home. Equipped with an internal battery and an adjustable video camera, the weather-resistant device from BOT Home Automation will go on sale in September for about $200.

PORTABLE PROJECTOR SHINES BRIGHT

You can travel light and still show off your presentation with Acer's new portable LED projector. Weighing just under a pound and compact enough to fit in a small bag, the Acer K132 DLP LED portable projector can display presentations stored on your USB drive, SD memory card or smartphone, as well as your TV and other electronics via an HDMI connection. With a resolution of 1280 by 800 pixels, 500 lumens and a contrast ratio of 10,000:1, the projector promises to deliver respectable, albeit not necessarily eye-popping images. Priced at about $500, its lamp is projected to last about 20,000 hours on standard mode and 30,000 hours on an economy mode.

CAMERA TAKES THE LONG VIEW

Whether you want to get up close and personal or snap a photo from across the gym, the 14X optical zoom on Nikon's Coolpix L620 promises to be up to the job. The compact 18-megapixel camera also includes a high-def video option, an optical image stabilizer, special-effect options and targeted auto focusing. Equipped with a 3-inch LCD monitor, the camera will go on sale in September for about $250.

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