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Model # RP4030

Internet # 100671261

Tek4 Professional 4-Volt Infrared Thermometer

This item has been discontinued.
The Home Depot no longer carries this specific product.

$69.97 /each



Model # RP4030

Internet # 100671261

Ryobi introduces the Ryobi Professional 4-Volt Tek4 Infrared Thermometer. This tool can can accurately measure temperatures between -4 and 590 degrees Fahrenheit. To learn more about Ryobi tools go to and check out Ryobi Nation. See below for more information on this tool.

California residents: see  Proposition 65 information

Info & Guides

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Product Depth (in.) 
3 in 
Product Height (in.) 
11.25 in 
Product Width (in.) 
8.5 in 
Automatic Emissivity Adjustment 
Batteries Included 
Battery Charger Included 
Battery Power Type 
Lithium Ion 
Battery Size 
Lithium Ion 
Case Included 
Control Type 
Data Log/Record 
Data hold 
Display Type 
Distance to Spot Ratio 
Impact Resistant 
Low Battery Indicator 
Max Accurate Temp Measurement (F) 
Min Accurate Temp Measurement (F) 
Number of Batteries Required 
On/Off Switch for Laser Sight 
Product Weight (lb.) 
1.4 lb 
Reference Scale Included 
Test Meter Type 
Infrared Thermometer 
Tools Product Type 
Test Meter 
Water Resistant 
Warranty / Certifications
Manufacturer Warranty 
2 Year Limited Warranty 


Rated 4.6 out of 5 by 24 reviewers.
Rated 3.0 out of 5.0 by Ryobi Tek4 Product works great, for about a year. Then it loses it's calibration. Still, if you can afford to buy a new one, every year, it's a very handy tool. In my business, checking building heating systems, and boilers, sometimes pipes are 15 feet away, above me. This thermometer really helps. Plus the battery is quick to recharge. The recharger can be used to test the battery. Perhaps I bought a lemon. However, I have since bought another one, and am still happy with my purchase. February 11, 2012
Rated 5.0 out of 5.0 by Very Happy with it. Well like another reviewer stated it appears to be a solid little unit and it works well. I find myself checking temperatures on lots of things from computer parts to ceiling tiles. Be aware that although it does have a laser to pin-point the reading it will only be accurate within a few feet. Any further away and the area which the sensor reads will be rather large. It also appears to have issues with shiny surfaces like polished aluminum or glass. Already my wife is using for things in the kitchen. Note: This unit comes with a TEK 4 battery and standard charger so you won't need to purchase them separately. I would definitely recommend it. August 18, 2009
Rated 5.0 out of 5.0 by Simple Tested this out and feels very durable. The temperature seems accurate, although I don't have anything to test with. I've used this around the home for heating/cooling purposes. I've found the source of issues in my home. it takes the guess work out. Areas where I thought I had problems were not the biggest issue. Photo shows how much heat is generated from just a cable modem. July 26, 2013
Rated 5.0 out of 5.0 by Bargin IR thermal meter... I have used Fluke IR thermal meters at work. They typically run $ 200 to $600 or more. They are very handy tools for troubleshooting temperature related problems. When I first noted this new Tek4 IR meter, and read it's specs., I was impressed. I purchased one right away. Ryobi has done it it again on a handy tool for the DIY user. This little IR meter works as well as any Fluke meter that I have used at work. It's a good tool for many uses. Locating hot spots in the home, such as hot air leaks in walls, ducts, or an over heated circuit breaker or electrical connection box. An over heated motor, or the true temperature of you gas grill. The IR "gun" reads in both degrees C and F, and stores up to ten readings. The display is back lit for viewing under dim conditions. I know of no other IR meter for this price from any company. Very useful tool for home troubleshooting.... June 27, 2009
Rated 5.0 out of 5.0 by Have to include this in your toolbox Got this for Christmas and I really like it. Cushion grip,easy to read display ,speed of temp reading all make this a great addition to any contractor or home owners tool box. December 27, 2009
Rated 5.0 out of 5.0 by Ryobi TEK4 RP4030 Infrared Thermometer - Great! I don't use this professionally, I picked it up mostly to fill out my collection of TEK4 tools. I can't really speak to it's accuracy. But it has allowed me to compare the heat generated by different light sources, to identify air leaks at a distance, and I've even used it to determine when that pot of cooking oil was ready for the hushpuppy mix. It's also a really neat toy that my kids love to take turns with when they see me pull it out! January 22, 2015
Rated 5.0 out of 5.0 by Great tool at a good price This tool is very well built and comes with the 5 hour charger & 1 battery. The 5 hour charger is "avoidable" by buying the 36 minute charger (has 2 battery slots) and comes with 1 extra battery. This is a "must" for those that use the Tek4 tools a lot. Take a look at their "Tek" section at your local store because they had a lot more specialty tools than I thought that use the Tek4 Battery. Originally I thought of just using this for "air leaks" around the house but I have found a lot more uses for it such as checking the insulation of my floor vs ceiling. Check the temperature (roughly) inside the car before I get in and bake :) and just misc other "curiosities" like roof temperatures without feeling it myself. Overall I would recommend this to anyone buying a house or wanting to "fix air leaks" in your house. It will save a lot of time and effort of going around and "feeling" each area. July 22, 2011
Rated 4.0 out of 5.0 by Excellent Thermometer, but a lil tad bit high on price Great temperature taking range at distances where others fail. I do think its high in price, otherwise i would have keeped it. I returned mine to later get something cheaper. I needed it to precisely monitor different hot/cold temperature spots in my reptiles enclosure as well as take temperatures of the green tree python i have in the day and at night everyday. Display lights up well. Any temp gun (minus a lit display) for $25 will do that , but if i needed one that could measure father away or measure more extreme temps, I would immediatly purchase this one. August 5, 2012
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