Secure Payment
Fast Delivery
Money Back Guarantee
24/7 Support
Quality Assurance
Free shipping on all orders . See details
Estimated between Oct 19, 2026 and Oct 21, 2026 Ships within 1-3 business day after payment clears. | SHOP Track Order | Ourlum Orders | Track Orders
30 days returns. 100% Money back guaranteed. See details
You need reliable electrical checks without guesswork. This digital multimeter delivers precise AC and DC voltage measurements . Turn the dial for auto ranging accuracy on any circuit.
Big auto range display cuts guesswork. Built in sound continuity test speeds up wiring checks. Overload protection guards internals during heavy use.
You get a rugged ABS plus PC casing that handles workbench drops. The bright LCD screen shows exact numbers clearly. You simply rotate the selector to pick your reading.
This tool measures electrical flow for everyday fixes. Homeowners and technicians alike rely on it for routine checks.
Clear numbers save time on tricky circuits. Automatic scaling adjusts without manual fiddling. Loud beep alerts confirm closed loops fast.
Model DM850 runs on a single 6F22 9V battery. Operating temperature stays between zero and forty degrees Celsius. Housing combines durable plastic with a protective cover. Device originates from Mainland .
One main digital multimeter unit. Quick reference user card.
Adjust the rotary switch to match your target setting. Insert test leads into the proper input jacks. Touch probes across the component or circuit point. Read the stable value directly on the display.
You avoid costly trial and error repairs. Fast continuity signals protect sensitive electronics. Safe overload barriers prevent expensive tool damage.
Quick household outlet verifications. Automotive battery voltage checks. Hobbyist prototype validation. Appliance motor diagnostics.
DIY enthusiasts tackling home wiring projects. Independent electricians needing portable gear. Students learning basic circuit theory.
Why does the display flicker? Electrical noise may cause brief fluctuations near moving parts. Move the device away from alternating magnetic fields.
When should I change the battery? Replace the cell once the screen dims noticeably. Fresh power ensures consistent baseline calibration.
Can it measure indoor air quality? This meter focuses strictly on electrical parameters.
Does it support three phase systems? You can check individual leg voltages independently.
Is the case fire resistant? The ABS plus PC shell meets standard industrial durability norms.
Keep your workspace sharp for the next weekend project.
Digital Multimeter Tester: review the specifications and available configurations.
Product identification: DM850 Digital Multimeter Tester
OurLum specializes in Smart Electronic products, connected devices and useful everyday accessories.
Shop OurLum with confidence—secure payments, fast shipping, easy returns, order tracking, and reliable support.
At OurLum.com, we don’t just promise quality—we guarantee it. Every product is carefully selected and tested to meet real-life needs, and your satisfaction is 100% backed by our no-hassle return policy. If it doesn’t work for you, we’ll make it right—fast. Shop confidently knowing you're getting trusted products, secure checkout, and real support when you need it. Because at OurLum, your peace of mind comes first
🤩🤩🤩
The item quality very bad its need a battery its like a toy not a professional digital multimeter
DM850 Professional Digital Multimeter 1999 Auto AC/DC Votage Tester Ohm Current Ammeter Test Probe Professional Detector Tool
Best quality and easy to use
Received in gøød cønditiøn, it functiøn well. it is gøød prøduct.
It arrived as is, it's economical but ultimately...
DM850 Professional Digital Multimeter 1999 Auto AC/DC Votage Tester Ohm Current Ammeter Test Probe Professional Detector Tool
DM850 Professional Digital Multimeter 1999 Auto AC/DC Votage Tester Ohm Current Ammeter Test Probe Professional Detector Tool
I received the order as it arrived on the established shipping date, tested and proven, 100% recommended. Greetings from Peru.
DM850 Professional Digital Multimeter 1999 Auto AC/DC Votage Tester Ohm Current Ammeter Test Probe Professional Detector Tool
I haven't used it yet.
Good quality and fast delivery
It arrived very quickly, excellent product, I recommend it. Thanks to the express service, I just wish they had included the batteries.
I received my order perfectly, I recommend it.
👍
Low quality and it delivery without a battery
everything is correct
Thank you, the product (device) has been received and is in good condition with no issues or defects.
The MD850 multi-measurement device is as described in the store. Thank you.
Perfect but it looks smaller than the image displayed here
I haven't tried it yet, price-quality ratio
I received the product as shown in the picture and it's good, but its size is about the size of a hand and I haven't tried it yet. It requires a 9-volt battery.
I don't recommend it; I saw it too late; the device generates voltage; it's a useless thing.
Great item, just as described
