$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 /)..
Latest update shows that ANENG MH12 Insulation Earth Resistance Tester costs $41.99 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood ($41.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Well, is it a good price anyway? The average price for this item is $44.21, so I think it’s a good price!
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
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
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
Check out price history chart (for all/most countries) for ANENG MH12 Insulation Earth Resistance Tester. 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)).