Dual test probe: dual test probes are inserted into fruit, vegetables, fish and meat to test for nitrate levels while causing the least damage to your food. Alternatively hold the probes in standing water to test the TDS level of water and determine the quality and safety of your drinking water. Long battery life: The 720mAh battery provides up to 20 hours of usage time and can be re- using the USB charger provided with the device. Tester for Fruit-- is a modern device for rapid analysis of nitrate content in fruit, vegetables, fish and meat (in 3 seconds). TDS water hardness test (in 3 sec. ) Tester for Meat--The device has a database of the 56 most common fruit and vegetables and is calibrated based on more than 1000 tests in leading laboratories specialised in spectrometric equipment Multifunctional Tester--Our dedicates ourselves to changing the quality of life and protecting us and our children from the infringement of harmful impurities, nitrates and nitrites. Portable, compact and : is designed with your convenience in mind. The compact and device is small enough to fit into your pocket or carried in your bag to take with you wherever you go. [parameter] Model: 2F (applicable scope vegetables, fruits, meat, fish,) Nitrate measurement range: 0 - 9999 mg/kg Measuring range of salt content in water quality (1mg/L): 0 - 999 mg/L Measuring range of radiation intensity in the environment, / (mR / ): 0 - 99.99 (9999) Nitrate detection time: ~3 sec. Radiation detection time: ~10 sec. Measurement error: Less than 8% Dimensions: 122 x 52 x 14mm Weight: 85 grams TFT color display resolution: 320 x 240 Battery capacity: 720 mA / h lithium battery Additional power source: USB power supplycharger USB charging current: 310mA Supply voltage range: 5V Use time: 20 hours (using a fully 720 mAh lithium battery at default device settings) Working temperature: 0 - +60 Bluetooth Specification (Bluetooth): v5.0 Bluetooth frequency range (Bluetooth): 2.4GHz Colour:green Material:ABS Size:122 x 52 x 14mm Package Contents: 1 x Nitrate Tester 1 x Usb Cable 1 x Storage Dust Bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.