Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Metrel MI 3125 Combination Multifunction TesterOverview The Metrel Installation Tester is designed for compliance testing to the AS NZ3000 standard. This multifunctional device is suitable for testing appliances and installations, combining the capabilities of 12 instruments into one highly specified tester. Specifically built to meet Australian standards, it provides the ultimate all in one testing solution. Clever accessories, such as the optional 3 phase adaptor kit, allow for easy deployment
Overview
The Metrel Installation Tester is designed for compliance testing to the AS/NZ3000 standard. This multifunctional device is suitable for testing appliances and installations, combining the capabilities of 12 instruments into one highly specified tester. Specifically built to meet Australian standards, it provides the ultimate all-in-one testing solution.
Clever accessories, such as the optional 3-phase adaptor kit, allow for easy deployment of the tester in various environments. An optional resistor box (not included) can be connected to the switchboard during installation testing, eliminating the need for lengthy trailing earth leads during outlet socket testing. Built-in thresholds deliver clear results with PASS/FAIL indications in accordance with AS3000 specifications, similar to an appliance tester.
Single Measurement Functions
- Voltage
- Frequency
- Phase rotation
- Resistance to earth connection and equipotential bonding
- Insulation Resistance
- Polarity
- Correct Circuit Connections
- Fault Loop Impedance/PSC
- RCD Test (including ramp current testing)
Insulation Resistance
Nominal Voltages: 50V, 100V & 250V DC
| Measuring Range (MΩ) | Resolution (MΩ) | Accuracy |
|---|---|---|
| 0.00 ... 19.99 | 0.01 | +(5% of reading + 3 digits) |
| 20.0 ... 99.9 | 0.1 | +(10% of reading) |
| 100.0 ... 199.9 | 0.1 | +(20% of reading) |
Insulation Resistance: 500V and 1000V DC
| Measuring Range (MΩ) | Resolution (MΩ) | Accuracy |
|---|---|---|
| 0.00 ... 19.99 | 0.01 | +(5% of reading + 3 digits) |
| 20.0 ... 199.9 | 0.1 | +(5% of reading) |
| 200.0 ... 999 | 1 | +(10% of reading) |
Voltage
Measuring Range
| Measuring Range (V) | Resolution (V) | Accuracy |
|---|---|---|
| 0 ... 1200 | 1 | +(3% of reading + 3 digits) |
Resistance (R LOWΩ)
Measuring Range
| Measuring Range (Ω) | Resolution (Ω) | Accuracy |
|---|---|---|
| 0.00 ... 19.99 | 0.01 | +(3% of reading + 3 digits) |
| 20.0 ... 199.9 | 0.1 | +(5% of reading) |
| 200.0 ... 1999 | 1 | +(5% of reading) |
RCD Testing
General Data
- Nominal residual current (A, AC): 10mA, 30mA, 100mA, 300mA, 500mA, 1000mA
- Nominal residual current accuracy: +5%
- Test current shape: sine-wave (AC), pulsed (A)
- RCD Type: G (non-delayed), S (time-delayed)
- Test current starting polarity: 0° or 180°
- Voltage range: 50V ... 264V (45Hz ... 65Hz)
Trip-out Time
| Measuring Range (ms) | Resolution (ms) | Accuracy |
|---|---|---|
| 0.0 ... 40.0 | 0.1 | +1ms |
| 0.0 ... max. time | 0.1 | +3ms |
Trip-Out Current
| Measuring Ranges IΔ | Resolution IΔ | Accuracy |
|---|---|---|
| 0.2xIΔN ... 1.1, 1.5, 2.2xIΔN (AC type) | 0.05xIΔN | +0.1xIΔN |
Socket Test (RLN, RLPE, RNPE, RPE)
- Measuring current: min. 200mA into load resistance of 2Ω
Measuring Range
| Measuring Range (Ω) | Resolution (Ω) | Accuracy |
|---|---|---|
| 0.00 ... 19.99 | 0.01 | +(3% of reading + 3 digits) |
| 20.0 ... 199.9 | 0.1 | +(5% of reading) |
| 200.0 ... 1999 | 1 | +(5% of reading) |
Fault Loop Impedance
No RCD and With RCD
| Measuring Range (Ω) | Resolution (Ω) | Accuracy |
|---|---|---|
| 0.00 ... 9.99 | 0.01 | +(5% of reading + 5 digits) |
| 10.0 ... 99.9 | 0.1 | +(5% of reading + 5 digits) |
| 100 ... 999 | 1 | +(10% of reading) |
| 1.00k ... 9.99k | 10 | N/A |
Prospective Fault Current (Calculated Value)
| Measuring Range (A) | Resolution (A) | Accuracy |
|---|---|---|
| 0.00 ... 9.99 | 0.01 | N/A |
| 10.0 ... 99.9 | 0.1 | N/A |
| 100 ... 999 | 1 | N/A |
| 1.00k ... 9.99k | 10 | N/A |
| 10.0k ... 23.0k | N/A | N/A |
Voltage, Frequency & Phase Rotation
Voltage
- Result type: TRUE RMS
- Nominal frequency range: 0Hz, 14Hz ... 500Hz
Measuring Range
| Measuring Range (V) | Resolution (V) | Accuracy |
|---|---|---|
| 0 ... 550 | 1 | +(2% of reading + 2 digits) |
General Data
- Overvoltage Category: 600V CAT III/300V CAT IV
- Protection Degree: IP40
- Display: 128 x 64 dot matrix display with backlight
- Dimensions: 14cm x 8cm x 23cm
- Weight: 1.0kg (without batteries)
- Temperature Range: 0°C to 40°C
- Maximum Humidity: 95% RH
- Power Supply Voltage: 9 V DC (6 x 1.5 rechargeable batteries) - 20 hours operation
Included Accessories
- Neck carrying belt
- Short instruction manual
- Instruction manual
- Calibration certificate
- Mains measuring cable (1.5m)
- Universal test cable (Black, Red, Green test clips)
- 3 x Test Leads
- 3 x Test Probes
- 3 x Crocodile Clips
- 6 x Rechargeable batteries
- Power supply adaptor
Standard Warranty
1-year warranty for the unit.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 2045 reviews
Sort
Product Reviews
★★★★★ 5
Great chair
Color: Pink
I love this chair! I use it for streaming and working on making jewelry! It’s very comfortable and I love that I can sit different ways in it! I can stream longer than I could in other computer chairs I’ve had! I definitely recommend this if you have to sit for a long time but like to sit in different positions! The instructions were a bit confusing but I did figure it out! I have had to spot clean it a few times because of kids and pets but the material has held up! The back is very comfortable and supportive! I like that I can adjust it! Great chair for the price! It’s held up well and I like that you can adjust the back!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
★★★★★ 4
Good office chair for the money
Color: White
It is a good quality chair that is comfortable and aesthetically pleasing.
The arms aren't necessarily big enough to hold our cat - but that's because he's fairly large by cat standards. The arm rests moving is definitely nice and provides lots of opportunities to 'setup the chair' in a way that works best for you.
The instructions were relatively easy to follow (take your time and think it through to make sure you have everything 'aligned right' at first) and the chair is sturdy and holding up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 5
Comfortable. Great Value for money. Easy to assemble. Great customer service.
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
I've been looking for a new chair to replace a cheap $30 chair i bought off of Amazon last year that had been killing my back and shoulders. I wanted something in the $150-$200 range and settled on the M18. Shipping was a fast 3 days with Prime and the box arrived in great condition.
All parts were separately wrapped or in their own boxes. Came with all hardware and nothing was missing. Assembly took me a little longer then normal because i have rotator cuff injury in my left shoulder so that arm is mostly useless. The most difficult part for me was attaching the wheels to the base. Other then that it was simple.
Once the chair was assembled i sat in it for the first time and started making my adjustments with the recline feature, armrest level along with the headrest. Next i reached around for the lumbar support knob and tried to adjust it but with my bad shoulder i decided to just get out of the seat and turn it around and adjust it with both hands. After spinning the chair a round to get at the lumbar knob i noticed a large crack in the plastic in the middle of the back of the lumbar plastic piece. I had not made any lumbar adjustments yet so i assumed this is how i received it. The lumbar support comes preinstalled to the backrest so it either was damaged before or during the shipping process. Either way it was damaged before being delivered to me. The lumbar support still functioned properly but it was still broken.
I decided to contact Sihoo's customer support that came along with the installation instructions regarding the damaged lumbar piece. I received a reply the next day and after sending them some more info about my order and a couple pics they shipped me a replacement part which took a week to arrive. I swapped out the damaged part and after owning the chair for a week so far i am really happy with my purchase.
Im about 5'10 180lbs. At its highest height level my feet reach the ground comfortably flat footed. The backrest fully covers my back and the headrest adjusts very well to sit on the back of my lower head/upper neck. The armrests only go up and down....not forward and back or tilt inwards. This is fine for me as they are grooved to fit your forearm while sitting at your desk/keyboard. The armrests are also a soft cushioned rubber material...not a hard plastic. The mesh of the backrest and headrest are good material and seem well made. The seat is very wide and the cushioning is firm which i prefer. Usually more firm cushioning seems to last longer and hold its form. The base of the chair is VERY sturdy and made of all metal. My chair is on carpet and holds its position very well. As far as recline goes you can set it to recline all the way back, half way or lock the chair in the upright position. You can also adjust the resistance on the reclining feature.
So that being said im very happy with my purchase. It arrived with a slight flaw which the company corrected in a fast manor and was very polite in their customer support. I personally don't have a lot of experience with many office chairs and have never used a high end chair($500-$1000+) chair before to make any comparisons. All my chairs for the most part have been from local stores like Staples or Office Depot. Id recommend this over anything they carry in this price range....and i went and looked at their products before buying this chair as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2023
★★★★★ 5
SIHOO M18 chair is amazing
Color: Black, Size: Pack of 1
I purchased the SIHOO M18 Ergonomic Chair a few years ago and have really enjoyed it. It’s very comfortable and offers multiple adjustments, whether you want to recline and relax or sit upright for work. The back support is also excellent, and I haven’t had any issues with the chair at all. You can easily tell it’s high quality from the build and appearance—no creaks or noises whatsoever. I highly recommend this chair to anyone in the market for a new office chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
★★★★★ 4
Good budget-friendly option
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
The chair arrived 4 days early and was easy to put together by following the instructions carefully. It feels sturdy and comfortable. It does support the lumbar region of the back and the arm rests are adjustable vertically as well as the head rest. I wish the arm rests were able to rotate in and out for added customization and that the back of the chair could be adjusted up and down for more precise support. But for a budget chair, it does a good job.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
recommand products
PALL 4656 Acrodisc Syringe Filters with Supor Membrane, Sterile - 1.2 µm, 32 mm (50/pkg)
181.45
PALL 11872 142 mm Disc Filter Holders, Stainless Steel , stainless steel (1/pkg)
2394.54
PALL AP-4001 Acrodisc Syringe Filter - 10 µm with Versapor membrane, polypropylene housing, 25mm (50/pkg 200/cs)
382.97
MTC Bio V5809-R Cap inserts for cryogenic vials, red, 500/pk
13.57
PALL AP-4521 Acrodisc PSF Syringe Filters with PTFE Membrane - 0.2 µm (1000/pkg)
1281.23