BTMETER BT-770N CHEAP-O Multimeter Review & Teardown!

[@ragilmalik]

Darren, to turn on the backlight, you can just cover the sensor above the display with your hand for a while and then the backlight will turn on automatically for a few seconds, just like my (and your) UT89X.

[@thefineguy3419]

23:00 That's a photoresistor for the auto backlight

[@sssss3750]

Sold! Best youtube site ever for a novice like myself buying a cheapomultimeter

[@KeepOnTesting]

Wow, thanks! Keep On Testing!

[@ejtaningco6354]

I'm a simple man, when I see Darren uploads I watch. Although I have already 3 multimeters, I just can't help myself but to buy again every time you review these multi Meters particularly the Uni T ones, Very informative and enjoyable due to your enthusiasm.❤️ cheers and lots of love from the Philippines

[@KeepOnTesting]

Thanks so much EJ ! I love your enthusiasm too! Keep On Testing! 😃👍

[@ericchang7706]

Holy Cow! What a great meter! 20A and 800mA max current and many innovative features on this one. I'd probably buy this over the HT118A if I needed something a bit more svelte. If this channel has helped you in making your decision, please use his links. I bought my meter before finding his reviews but if he ever gets around to reviewing cheap-o bench power supplies...

[@KeepOnTesting]

Thx Eric! Yes indeed , CHEAP-O bench power supplies (and not so cheap!) are coming in the very early new year! 🤩👍

[@ericchang7706]

30V 10A is nice size to start with for us solar and lithium enthusiasts. Ignore the fact that that's what I'm looking for, of course!

[@yambo59]

Ive got one of these 770N's and its one of the best value meters out there for pure functionality with good accuracy, it also has a couple added features ya just dont expect to see in most $25 meters such as almost 4 volts in the diode range, lighted range selector, jack shutters, clamp capability in both AC and DC, 100mF cap range, etc. and I dont really count heavily on NCV as on so many meters its only so-so in functionality. As I said I have a 770N myself as well as a decent manual range version which I liked well enough to buy this autorange version. I love the 770N's high degree of pure functionality you get for the price, strictly as a DVOM it simply performs as it should and a bit more in some cases, many budget meters are sometimes slow or inaccurate or do not even meet their basic specs. My only serious complaint with both versions I have is in the mA fuse area. I really commend BT for the excellent battery cover fuse access, thats huge in a cheap meter, in any meter for that matter - but for some reason both of my BT meters in this line have two different height fuse clips on the mA side, and one is noticeably taller than the other leaving the fuse with a poor fit and sitting at an odd angle which ive never seen in any meter before. The fact the fuses are glass doesnt bother me so much as those are easily changed to ceramic, but myself I was so irritated by the fact that ive got two of these meters and both have this fuse clip situation and it appears they dont seem intent on fixing such a simple but important defect. Theres a part snafu on the assembly line somewhere between operations and incredibly no one has caught it. I like the meter enough that I finally just ordered the correct fuse clips at very low cost and replaced both on the mA side and now the mA fuse fits perfectly and sits level in both meters, but I shouldnt have to do this - another option some might take is to solder in a resettable poly fuse of the correct value in the 800 mA location, though again I shouldnt have to do this. But I will still say this meter is still a great value for the money, it gives so much accuracy and functionality in this low price range its really hard to fault it for anything considering its only $25, in fact if it werent for the weird fuse clip snafu I would really have no major complaints, but since the fuses are a big part of this meters already minimal input protection they should at least fit correctly, I hope somehow BTmeter gets the word on this subject because this is a great meter for hobbyists DIYers and beginners especially with the jack shutters to keep a newbie from damaging his meter accidentally, as Darren said this is not a meter for serious high current work but then no $25 meter is. IF YOURE LISTENING BT METER, PLEASE FIX THOSE mA FUSE CLIPS, we like youre meter and its a good value but fuses are a safety device and they need to fit correctly. Also BT if youre not going to give us any more PTC's or any MOV's how about throwing in ceramic fuses instead of these little glass pipe bombs-? I know ive been somewhat critical here, but not without good reason, this is a decent meter but fuses are important enough they should at least fit right - but my last word is its a good meter and a great value and thats why I bought one even knowing the fuse situation before hand, but a buyer should fix the mA fuse clip situation just to make it right - Just my opinion.

[@KeepOnTesting]

BTMETER I hope you're listening! Please put more thought into the Input protection and you're going to have a 5💫💫💫💫💫 multimeter! Great 👍 points Mike. Keep On Testing!

[@bhushan9066]

This is to certify that I have read this whole lengthy comment and I totally agree with its advice and suggestions 😌.

[@halrhoads6194]

The input shielding is an attractive addition! Especially impressed with the pc layout, and attention to detail. Frankly, I thought this should have rated higher than 10 of top 10. Just in time for Christmas, too!

[@KeepOnTesting]

I have a sneaking suspicion its going to climb the charts quickly!😃👍

[@yambo59]

I still have this meter and aside from my previous notes below its still one of the most accurate meters in this price range and with some small changes noted below it could be five star though not for industrial use - but its a good value for the money if used in the proper surroundings.

[@electronone5219]

It's a cool meter--lots of features. The component between the LED's at the top of meter is a photoresistor to control the backlight. I liked the review and look forward to the next one.

[@KeepOnTesting]

Spot On Electron! For some reason I thought there was an LDR SMD located on the back. D-uh...I better lay off the punch bowl 🥣 😀👍

[@derektodd4126]

Way to go Darren, seems very good value for money. From Northern Ireland have a good Christmas, as we are starting a 6 week lockdown from boxing day. Will be working on as classed as essential services. Not sure if I have one like this in my collection 🤔

[@KeepOnTesting]

Definitely 👍a very well priced dmm! Stay strong Derek, we are also going back to lockdown here in Qc, 🇨🇦 Canada..until Jan 11 only essential workers are to go into work..which means I'll be going into work ! I.T. is always dependable 🙃 no rest for the wicked !

[@AubreyKeck]

Surprisingly nice cheeapy. Looks like I'll have to put this one on my list. Thanks for the review.

[@KeepOnTesting]

Its a great multimeter 😃👍

[@Инженер-многоборец]

I have one, but in green rubber and named Holdpeak HP-890CN. It's very popular DMM among russian electronic hobbists. Also i changed data in eeprom, so now it have 9999 counts and changed order of submodes in many modes, so the most used submodes appear first(like continiuty test instead of resistanse test)

[@KeepOnTesting]

I can see why..it's one great multimeter that's ready for just about anything! Spasebo 😉👍

[@Jose-Ribeiro]

Can you please do a video on that?

[@Инженер-многоборец]

@@Jose-Ribeiro sure i can! but what do you want to see in that video ?

[@Jose-Ribeiro]

@@Инженер-многоборец The way to change the eeprom and the positions you change. Thanks.

[@Инженер-многоборец]

@@Jose-Ribeiro Okay, I'll try to do this. Please don't blame me for my poor english

[@warrenking1815]

Thank you for the bt-770n review, it made up my mind to buy this meter. The bang for the buck is awesome!

[@KeepOnTesting]

Great choice Warren..! Lots of bang for buck and a good performer too. Let us know how you like it !

[@stovepipe9er]

I ordered a Twidec ta118a which is supposed to be the habotest/kaiweets ha118a based on your review. Also thinking of this meter and/or the uni-t ut89xd. One for home, the truck and the shop. I mainly use continuity working on equipment and decided against the cheaper amprobe and fluke models after seeing reviews showing them to be slow and have lousy continuity. Your reviews have been a big help, thanks!

[@KeepOnTesting]

Thanks for the kudos! Either multimeter would be a good choice..UNI-T UT89XD as a second multimeter has a few nice features that aren't normally found. BT770N is also a superb dmm so you can't really go wrong either way ...😀👍let us know which one you pick up 😉

[@stovepipe9er]

I ordered the bt770n after I heard you mention it having the best continuity function out of everything you reviewed in the last year. At this point I’m mostly doing continuity tests to trace wires and checking voltage. Working on the snowmobile club groomer, and our farm machinery over here in MB.

[@KeepOnTesting]

@@stovepipe9er Great Choice ! it will serve you well! I'm an ex Winnipegger myself, so cheers my Manitoba friend!

[@rinqucosta2422]

BTMETER BT-770N is quite similar design to Holdpeak HP-770 series.... I'm very impressed with this $25 meters overall performances and build quality...👍👊👌 it will be extra if it had bar graph in it's display and continuity indicator

[@KeepOnTesting]

Bar graph would've been amazing 👍 not sure why they didn't include the visual continuity either...🤔

[@Jose-Ribeiro]

There's a Holdpeak of the 770 series with bargraph. The Holpeak HP-770HD. It seems a update version of the old HP-770D. It would be great if Darren review that (Holdpeak are you seeing this?). Seems like a great multimeter.

[@numerical_error]

@@Jose-Ribeiro Oh yes! It would be nice to have a Holdpeak week. Grin grin, wink wink, nudge nudge, say no more.

[@just_arandom_guy8209]

A nice looking multimeter with interesting features!

[@KeepOnTesting]

The look has definitely grown on me !

[@wilsonluilui]

THX DR.darren,meter have input COVER is A good design for protect the user and meter.👍

[@KeepOnTesting]

Cheers Wilson! Agreed its a great design and inherently safer for a new or seasoned user alike!

[@hameedullah6633]

Hello. Which one is the best brand and multimeter for everything. (Home, professional, electrical and electrician user)

[@ayyydood]

I like this meter too. But the trim pot labeled V1 only adjusts the backlight brightness. I was pretty disappointed with that because I like to adjust them to my voltage reference but oh well. Thanks for the great multimeter reviews. They've helped me out.

[@KeepOnTesting]

Ahhh ..that's good info..who wouldv'e though it was a backlight control! Keep On Testing !😀

[@easywaycircuit9233]

wow bro another nice review and informative you have lots of tester how lucky you are

[@KeepOnTesting]

KEEP ON TESTING! 👍

[@easywaycircuit9233]

@@KeepOnTesting always bro and pls subscribe also to my little channel bro thanks

[@bhushan9066]

Its a LDR sensor and not a onboard temperature sensor at the front between those two LED lights red and green. That's what controls the automatic backlight that always stays on in the dark, WOW! ...... When you were dismantling it I expected it to have shielding as it had easy fuse access and threaded brass insert but, it is still fine we have nice screwed inserts for the probes to fit in. And BTW, ....... (*Cough *Cough) it has Hfe selection and slot that you didn't checked on camera. Amazing! 😉

[@KeepOnTesting]

Roger that.. I realized my LDR snafu after the initial edit.. I must have had too much holiday cheer 🙃 during the teardown ! Yes Hfe is also alive and well in all its glory on th 770 and works fine. I just didn't want the review to get too long 😪 so it ended up on the editing floor..absolutely a great dmm!

[@bhushan9066]

@@KeepOnTesting Sorry but as it had that HFE capability and also this being a hobbyist centric DMM, it would be an essential testing that needed to be included in the review. You should never skip it as it is very useful for hobbyists. Nice to hear it works well 😃. At least 2020 has got some good Cheap-O multimeter at the edge.

[@KeepOnTesting]

@@bhushan9066 Point taken I'll make sure to include the Transistor test next time !!🤯👍

[@bhushan9066]

@@KeepOnTesting mind blowing 🤯!

[@KeepOnTesting]

@@bhushan9066 Or just a bad hair day....😱

[@徐愷輪]

This is literally the best meter out there for the price now.the bt-770n is essentially the holdpeak hp-770hc. I got the holdpeak hp-770hd which is an upgrade from this one with a beautiful bar graph. I got it for 25 bucks on alibaba. But I don’t think u can get that price in ur region?

[@TheRadiogeek]

Look at that NCV who’s your daddy. Too funny! That’s a lot of meter for the money for sure. Nice review as always. 👏🏻👍 Merry Christmas to you and your family.

[@KeepOnTesting]

Merry Christmas 🎄 my friend! That metallic NCV receptor just made me way too happy 😊 👍

[@abdul-kabiralegbe5660]

Great review!

[@RavenWindrunner]

Does this meter default to AC volts like the habotest?

[@MrRadiorobot]

You would buy it just for the 9v doohickey alone!.. Doohickey, ha ha love it! ..alas not available on amazon UK! 🙁 BT-770N..its cheapo charm is just overpowering..that LED in the selector switch, a big Turn On! Love it love it!

[@KeepOnTesting]

Now that's the spirit !! Love that Illuminated Selector too...looks great at night.💥 😀👍💥

[@victorarevalo108]

🤔 a little close to the 77BN name. Great video also that amp clamp looks nice, I'm looking for a >65amp type. Thanks for making it harder to not buy another dmm j/k. Appreciate your review.

[@KeepOnTesting]

Thanks for watching!

[@rpdigital17]

Are you collecting or selling these multimeters?

[@KeepOnTesting]

I prize some of them..some I donate and a few I keep.😄👍

[@Jose-Ribeiro]

Holdpeak, please give a HP-90B to Darren for him to review. I think that's the only one in the HP-90 series (there's a German brand with a similar multimeter :) ) that as good input protection.

[@KeepOnTesting]

I can't argue with that 😃👍

[@Jose-Ribeiro]

@Schwalbe262 BTMeter only as 2 versions. BT-90EPC and BT-90EPD (Bluetooth version), but I don't know if the input protection is as good as the HP-90B version. I don't remember the name of the German brand that as a multimeter similar, but the the price it's not the same (more expensive).

[@Jose-Ribeiro]

@Schwalbe262 found also that there's a YF-90EPD (bluetooth version) from Infurider.

[@chahestan1]

I liked the mA, A protection cap, and selector lamination switch. But it was better if common and Volt input jacks were swapped.

[@KeepOnTesting]

Those mechanical shutters are very nice. I see what you mean by reversed inputs...🧐

[@blazkc]

Hi Darren. Please ur advice ! Is it Holdpeak HP 770 HD better option then BT 770 N !? Regards .

[@KeepOnTesting]

Great question...really not much difference, either multimeter is a good choice, although personally I'd still go with the BT Meter. The HP does have a bargraph though so if the price is similar it's probably the better option.

[@blazkc]

@@KeepOnTesting Thanks a lot. I'm waiting for Saturday new cheap,- o multi meter review 😊

[@KeepOnTesting]

@@blazkc Thx my friend! Lots of CHEAP-O Multimeter reviews coming 😃👍

[@philipsalvador8269]

Have you tested the optional current clamp attachment in a lower ampere load say, 0.14ac amp and then hook up in BTmeter? Did it accurately read lower current? Thanks..

[@KeepOnTesting]

Yes Phil..low amps are not a problem for this clamp.

[@adenvaldov6027]

I bought the 770N model, but I have a problem that I can't understand, when I start the device. I just hear beep beep, can you tell me what's going on? thanks!

[@KeepOnTesting]

Check too see if the fuses are good. If they are then try cleaning the selector tracks with IP. Let me know.

[@saarike]

Excellent meter and vid! Thanks a lot sir! 👍

[@KeepOnTesting]

Much appreciated!

[@janebezerra6399]

Muito bom parabéns estou sonhando com um com um multímetro digital

[@Rudro2024]

What a beautiful meter!

[@KeepOnTesting]

Definitely!

[@ernieking760]

Looks good. Where do you get it for $25?

[@KeepOnTesting]

Price has increased slightly but cheapest price is here amzn.to/3qUcbBC

[@615kaplan]

hi guys i just goe one on btmeter bt 770n . when i put it v to check my car battery . it is not showing nothing and just start to make bib bib non stop and all 4 digit number flashing just on 0000. any ida why is doing like that ?

[@KeepOnTesting]

Hey Habib! Are you on DC volts?

[@KeepOnTesting]

Also, make sure your fuses are not blown...

[@MrRadiorobot]

Christmas day! Christmas day! Christmas day! Christmas day! Can't wait for Christmas day! 🎄🎅🤶🌲☃️💐🎁❄️.... Christmas testing!!!

[@KeepOnTesting]

I bet you can't wait until it's Christmas 😀👍💫💥💫💥💫

[@RavenWindrunner]

Has anyone seen the bt-770m? It says it's auto/manual range, but the selector dial seems like it's just manual?

[@KeepOnTesting]

BT-770M is a manual ranging multimeter. Only the Capacitance range is auto.

[@RavenWindrunner]

@@KeepOnTesting ah I see, thanks for clarifying!

[@juancarlossandoval5628]

wow very nice meter,, too good for a cheapo one

[@KeepOnTesting]

It was incredibly satisfying to review!

[@parlenkow]

There are a model holpeak 770 HC very similar

[@KeepOnTesting]

Yes..almost identical! Good catch Wladimir! 😃

[@numerical_error]

For $25 it's a steal. It would have been nice to have a slightly better input protection. But for the bench it's a very solid choice. I can clearly see why it was popular among hobbyists. Nice to see it taking its place in the top ten cheapos. Screwed input jacks on a $25-30 meter? Wow! You don't see that often.

[@yambo59]

Hi - In my lengthy comment above, I have this meter and like it but I wanted word to get out about the mA fuse situation - I have this meter and a similar one in manual range and for some reason all these meters have two different height fuse clips on the mA side and because of this the mA fuse fits poorly in its clips and sits at an odd angle, I still like the meter its a great bargain functionality wise but I finally just ordered new fuse clips (cheap) and soldered new ones in so the mA fuse fits right in both meters. They offer a screaming deal with this meter and even though I already knew this fuse issue existed in my manual range version I still bought the the 770N autoranger because the manual range version performed so well. As I said I replaced the fuse clips and installed ceramic fuses in place of the little glass pipe bombs so many of these meters come with-lol That aside its a good meter for the hobbyist, DIYer or anyone as long as they stay away from big voltage and currents, not that it wont measure it accurately it will - but if a mistake was made in range selection or a power surge etc. I wouldnt want to be holding any meter like this in my hand - maybe im being overly dramatic but we are playing with electricity after all. Its a good meter but they should at least fix the mA clips and give us some ceramic fuses. 'Nuff said.

[@numerical_error]

@@yambo59 I see. I must say, that's the first time I hear about this kind of problems. I don't know if this is a manufacturing flaw, poor design or what. But you're right. They'd better sort it out. I guess they don't intend this meter to be used with high current and voltage. But they rate it for 20A and 1000V. That's slightly misleading. To a degree it's common for the Chinese manufacturers to focus on the spec and cut costs on input protection. But you're right to be worried about safety with those 20mm glass fuses and one small PTC. Thanks for taking your time to write such an in-depth comment. It's really helpful.

[@DormantIdeasNIQ]

why do all these reviews fail to be clear on the Amps capability... AC only? AC /DC? range?

[@KeepOnTesting]

In the beginning of the review when I explained the selector switch settings I clearly stated High Current Amps ac/dc

[@magicmarker1369]

top sensor is the light sensor cadmium sulfide.

[@derektodd4126]

All red Bretherton gladly accepted.

[@aldrinelectronics4283]

i like it bro 💖💖💖

[@yasyasmarangoz3577]

Hertz is not working correctly tho.

[@tecnisdaimondm.g9321]

Excelente

[@KeepOnTesting]

Thx 😀👍

[@maramaldo8666]

It is same to holdpeak!!!! Hp 770 hc

[@derektodd4126]

All red bretheron gladly accepted.

[@luisrobertoromero2709]

The same BlueDriver multimeter 🤷‍♂️

[@akcoord9615]

great

[@arnavkatyal2698]

nice

[@gman917]

The BTMETER BT-770M is $2.00 cheaper then the BTMETER BT-770N-- must be the review...lol

[@KeepOnTesting]

Thx for the update...! 😄👍

[@jolmat555]

That is LDR

[@Sunshine22232]

🤔😃👍

[@KeepOnTesting]

🙂👍

[@furiasalvaje3979]

But....it doesnt have automatic range.....what it means.....it gonna blows up very easy...

[@KeepOnTesting]

Not sure I follow, this IS an AUTORANGING multimeter?