$41.99 – Maximum display: 2000 counts, Power supply: 8*AA batteries (not included), Size: 17.2*14*6.2cm/6.79*5.52*2.48in, MH12: 0.1MΩ-10GΩ., 2. Measure insulation resistance: , Measuring range: , Material: ABS plastic, 1. Measure the output voltage, MH12: 50V-1000V / (50V / 100V / 250V / 500V / 1000V /)..
You can get ANENG MH12 Insulation Earth Resistance Tester for $41.99 using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Latest price update (UTC time):
Banggood ($41.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Is it a reasonable price for this item? My database says that it’s pretty good price, coz average is $44.21.
Link: Banggood product page
Price: $41.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGTools8, BGGines, BGCL88, BGee82a1, BG489c8a, BGf6c714, BG03d31b, BGMARCHSALE, BGebd6e6, BGe58e3f
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for ANENG MH12 Insulation Earth Resistance Tester is here. The lowest price was: $37.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).