According to my DB the lowest price is $71.99 for YIHUA 938D Hot Tweezers (in Banggood). You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
Latest coupon and price update (UTC):
Work temperature 0~40°C, Stability of temperature ±2°C(static state), Storage temperature -20°C~80°C, Celsius/Fahrenheit Display Temperature conversion mode Yes, 10 minutes fixed sleep mode Yes, Model 938D, Tip of ground Voltage <2mV, Storage humidity 35%~45%, Power 120W, Temperature display LED digital display, Temperature Range 200~480°C, Tip of ground Resistance <2Ω, Voltage AC 220V±10% 50Hz/AC 110V±10% 60Hz
Banggood ($71.99)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? But wait a sec… Is it a good price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $38.66)
Link: Banggood product page
Price: $71.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 5efba1, BG938D, BGYH938D, elec, BGsolder15, BG938D1, BG15sh, AFfbG10, WELDTOOL, BGAFF10OFF, BGTT10, bGhOnEy10, BGherra, BGdragonBoat, BGSS10%SW, BgoFErTaSchInA10, BgcLuBofErtA10, BGRUS15, BGWELDTOOL, BGCuponation10, 13f142, BG372479, BG7d39db, BGc225cb, BANGGOODSD, 6GSGIT, BGed73bf, BG8a7644, 00c906, BG515ec9, CityadsTool, BGGines, BGPTL088
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
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 YIHUA 938D Hot Tweezers is here.
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)).